Dr. Markus Wittkowski Profile

Dr. Markus Wittkowski

at European Southern Observatory

SPIE Involvement:

Author

Publications (38)

Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

VLTI status update

Xavier Haubois, Antoine Mérand, Roberto Abuter, Juan Pablo Araneda, Fuyan Bian, Pierre Bourget, Paul Bristow, Pablo Burgos, Françoise Delplancke-Ströbele, Roderick Dembet, Juan Pablo Gil, Andreas Glindemann, Frédéric Gonté, Patricia Guajardo, Norbert Hubin, Christian Hummel, Heidi Korhonen, Aaron Labdon, Johann Kolb, Johan Kosmalski, Sylvestre Lacour, Claudia Paladini, Laurent Pallanca, Luca Pasquini, Isabelle Percheron, Miguel Riquelme, Thomas Rivinius, Eleonora Sani, Linda Schmidtobreick, Peter Scicluna, Markus Schöller, Nicolas Schuhler, Konrad Tristram, Markus Wittkowski, Julien Woillez, Gérard Zins

Proceedings Volume 12183, 1218306 (2022) https://doi.org/10.1117/12.2635405

KEYWORDS: Telescopes, Astatine, Observatories, Adaptive optics, Spatial resolution, Polarization, Polarimetry, Optical spheres, L band, Data archive systems

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Evolution of VLTI science operations: supporting imaging, astrometry, and monitoring types of interferometric observations

Markus Wittkowski, Giacomo Beccari, Thomas Bierwirth, Stéphane Brillant, Paula Correia dos Santos, Olivier Hainaut, Xavier Haubois, Christian Hummel, Stéphane Marteau, Antoine Mérand, Steffen Mieske, Sangeeta Mysore, Claudia Paladini, Ferdinando Patat, John Pritchard, Michael Pruemm, Marina Rejkuba, Konrad R. Tristram

Proceedings Volume 12183, 121830X (2022) https://doi.org/10.1117/12.2627302

KEYWORDS: Interferometry, Stars, Observatories, Turbulence, Telescopes, Calibration, Adaptive optics, Interferometers, Efficient operations

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

CHARA/SPICA: a six-telescope visible instrument for the CHARA Array

Denis Mourard, Philippe Berio, Cyril Pannetier, Nicolas Nardetto, Fatmé Allouche, Christophe Bailet, Julien Dejonghe, Pierre Geneslay, Estelle Jacqmart, Stéphane Lagarde, Daniel Lecron, Frédéric Morand, Sylvain Rousseau, David Salabert, Alain Spang, Simon Albrecht, Narsireddy Anugu, Laurent Bourgès, Theo ten Brummelaar, Orlagh Creevey, Sebastien Deheuvels, Armando Domiciano de Souza, Doug Gies, Roxanne Ligi, Guillaume Mella, Karine Perraut, Gail Schaefer, Markus Wittkowski

Proceedings Volume 12183, 1218308 (2022) https://doi.org/10.1117/12.2628881

KEYWORDS: Stars, Sensors, Interferometry, Single mode fibers, Spectrographs, Mirrors, Planets, Calibration, Visibility, Databases

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Proceedings Article | 25 August 2022 Presentation + Paper

Presentation + Paper

Preparing observations for ESO telescopes: a versatile approach

Giacomo Beccari, Thomas Bierwirth, Michael Pruemm, Paula Cristina Correia dos Santos, Vincenzo Forchì, Stéphane Brillant, Olivier Hainaut, Stéphane Marteau, Andrea Mehner, Steffen Mieske, Sangeeta Mysore, Monika Petr-Gotzens, John Pritchard, Marina Rejkuba, Lowell Tacconi-Garman, Markus Wittkowski

Proceedings Volume 12186, 121860N (2022) https://doi.org/10.1117/12.2628991

KEYWORDS: Telescopes, Stars, Observatories, Target acquisition, Interfaces, Databases, Astronomy

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

VLTI status update: tapping into a powerful second-generation instrumentation

Xavier Haubois, Roberto Abuter, Emmanuel Aller-Carpentier, Jaime Alonso, Juan Beltran, Jean-Philippe Berger, Pierre Bourget, Paul Bristow, Luis Caniguante, Bruno Chazelas, Claudia Cid, Ralf Conzelmann, Angela Cortes, Pascaline Darré, Alain Delboulbé, Françoise Delplancke-Ströbele, Diego Del Valle, Roderick Dembet, Reinaldo Donoso, Christophe Dupuy, Sebastien Egner, Frank Eisenhauer, Lorena Faundez, Eloy Fuenteseca, Robert Frahm, Daniel Gaytan, Juan Pablo Gil, Andreas Glindemann, Frédéric Gonté, Jaime Gonzales, Patricia Guajardo, Thibaut Guerlet, Sylvain Guieu, Pablo Gutierrez, Pierre Haguenauer, Pierre van der Heyden, Stefan Huber, Norbert Hubin, Christian Hummel, Lieselotte Jochum, Laurent Jocou, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Peter Krempl, Sylvestre Lacour, Jean-Baptiste Le Bouquin, Julien Leclercq, Jean Louis Lizon, Bruno Lopez, Yves Magnard, Anthony Meilland, Alexander Meister, Antoine Mérand, Steffen Mieske, Thibaut Moulin, Juan Osorio, Jürgen Ott, Claudia Paladini, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Célia Pelluet, Isabelle Percheron, Lorenzo Pettazzi, Andrés Pino, Sébastien Poupar, Andrés Ramírez, Javier Reyes, Miguel Riquelme, Thomas Rivinius, Sylvain Rochat, Fernando Salgado, Markus Schöller, Nicolas Schuhler, Pavel Shchekaturov, Christian Stephan, Marcos Suarez, Alain Smette, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Christophe Verinaud, Markus Wittkowski, Julien Woillez, Gérard Zins

Proceedings Volume 11446, 1144606 (2020) https://doi.org/10.1117/12.2561486

KEYWORDS: Telescopes, Adaptive optics, Space operations

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Proceedings Article | 9 July 2018 Paper

Paper

Planet formation imager: project update

John Monnier, Michael Ireland, Stefan Kraus, Almudena Alonso-Herrero, Amy Bonsor, Fabien Baron, Amelia Bayo, Jean-Philippe Berger, Tabetha Boyajian, Andrea Chiavassa, David Ciardi, Michelle Creech-Eakman, Willem-Jan de Wit, Denis Defrère, Ruobing Dong, Gaspard Duchêne, Catherine Espaillat, Alexandre Gallenne, Poshak Gandhi, Jean-Francois Gonzalez, Chris Haniff, Sebastian Hoenig, John Ilee, Andrea Isella, Eric Jensen, Attila Juhasz, Stephen Kane, Makoto Kishimoto, Wilhelm Kley, Quentin Kral, Kaitlin Kratter, Lucas Labadie, Sylvestre Lacour, Greg Laughlin, Jean-Baptiste Le Bouquin, Ernest Michael, Farzana Meru, Rafael Millan-Gabet, Florentin Millour, Stefano Minardi, Alessandro Morbidelli, Chris Mordasini, Andreas Morlok, Dave Mozurkewich, Richard Nelson, Johan Olofsson, Rene Oudmaijer, Chris Packham, Claudia Paladini, Olja Panic, Romain Petrov, Benjamin Pope, Joerg-Uwe Pott, Luis Henry Quiroga-Nunez, Cristina Ramos Almeida, Sean Raymond, Zsolt Regaly, Mark Reynolds, Stephen Ridgway, Stephen Rinehart, Matthias Schreiber, Michael Smith, Keivan Stassun, Jean Surdej, Theo ten Brummelaar, Konrad Tristram, Neal Turner, Peter Tuthill, Gerard van Belle, Gautum Vasisht, Alexander Wallace, Gerd Weigelt, Edward Wishnow, Markus Wittkowski, Sebastian Wolf, John Young, Ming Zhao, Zhaohuan Zhu, Sebastian Zúñiga-Fernández

Proceedings Volume 10701, 1070118 (2018) https://doi.org/10.1117/12.2312683

KEYWORDS: Planets, Telescopes, Space telescopes, Exoplanets, Stars, Mid-IR, Interferometry, Signal to noise ratio, Interferometers, Heterodyning

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Proceedings Article | 4 August 2016 Paper

Paper

Planet Formation Imager (PFI): science vision and key requirements

Stefan Kraus, John Monnier, Michael Ireland, Gaspard Duchêne, Catherine Espaillat, Sebastian Hönig, Attila Juhasz, Chris Mordasini, Johan Olofsson, Claudia Paladini, Keivan Stassun, Neal Turner, Gautam Vasisht, Tim Harries, Matthew Bate, Jean-François Gonzalez, Alexis Matter, Zhaohuan Zhu, Olja Panic, Zsolt Regaly, Alessandro Morbidelli, Farzana Meru, Sebastian Wolf, John Ilee, Jean-Philippe Berger, Ming Zhao, Quentin Kral, Andreas Morlok, Amy Bonsor, David Ciardi, Stephen Kane, Kaitlin Kratter, Greg Laughlin, Joshua Pepper, Sean Raymond, Lucas Labadie, Richard Nelson, Gerd Weigelt, Theo ten Brummelaar, Arnaud Pierens, Rene Oudmaijer, Wilhelm Kley, Benjamin Pope, Eric L. Jensen, Amelia Bayo, Michael Smith, Tabetha Boyajian, Luis Henry Quiroga-Nuñez, Rafael Millan-Gabet, Andrea Chiavassa, Alexandre Gallenne, Mark Reynolds, Willem-Jan de Wit, Markus Wittkowski, Florentin Millour, Poshak Gandhi, Cristina Ramos Almeida, Almudena Alonso Herrero, Chris Packham, Makoto Kishimoto, Konrad R. Tristram, Jörg-Uwe Pott, Jean Surdej, David Buscher, Chris Haniff, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Peter Tuthill, Gerard van Belle, Phil Armitage, Clement Baruteau, Myriam Benisty, Bertram Bitsch, Sijme-Jan Paardekooper, Christophe Pinte, Frederic Masset, Giovanni Rosotti

Proceedings Volume 9907, 99071K (2016) https://doi.org/10.1117/12.2231067

KEYWORDS: Planets, Imaging systems, Exoplanets, Planetary systems, Astrophysics, Stars, Astronomy, Theoretical astronomy, Observatories, Physics

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Proceedings Article | 24 July 2014 Paper

Paper

The 2014 interferometric imaging beauty contest

John Monnier, Jean-Philippe Berger, Jean-Baptiste Le Bouquin, Peter Tuthill, Markus Wittkowski, Rebekka Grellmann, André Müller, Sridhar Renganswany, Christian Hummel, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, John Young, David Buscher, Joel Sanchez-Bermudez, Antxon Alberdi, Rainer Schoedel, Rainer Köhler, Ferréol Soulez, Éric Thiébaut, Jacques Kluska, Fabien Malbet, Gilles Duvert, Stefan Kraus, Brian Kloppenborg, Fabien Baron, Willem-Jan de Wit, Thomas Rivinius, Antoine Merand

Proceedings Volume 9146, 91461Q (2014) https://doi.org/10.1117/12.2057312

KEYWORDS: Stars, Image restoration, Interferometry, Image processing, Visibility, Reconstruction algorithms, Telescopes, Data modeling, Spatial resolution, Optical interferometry

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Proceedings Article | 24 July 2014 Paper

Paper

VLTI status update: a decade of operations and beyond

Antoine Mérand, Roberto Abuter, Emmanuel Aller-Carpentier, Luigi Andolfato, Jaime Alonso, Jean-Philippe Berger, Guillaume Blanchard, Henri Boffin, Pierre Bourget, Paul Bristow, Claudia Cid, Willem-Jan de Wit, Diego del Valle, Françoise Delplancke-Ströbele, Frédéric Derie, Lorena Faundez, Steve Ertel, Rebekka Grellmann, Philippe Gitton, Andreas Glindemann, Patricia Guajardo, Sylvain Guieu, Stéphane Guisard, Serge Guniat, Pierre Haguenauer, Cristian Herrera, Christian Hummel, Carlos La Fuente, Marcelo Lopez, Pedro Mardones, Sébastien Morel, André Müller, Isabelle Percheron, Than Phan Duc, Andres Pino, Sébastien Poupar, Eszter Pozna, Andres Ramirez, Srihdaran Rengaswamy, Lionel Rivas, Thomas Rivinius, Alex Segovia, Christian Schmid, Markus Schöller, Nicolas Schuhler, Julien Woillez, Markus Wittkowski

Proceedings Volume 9146, 91460J (2014) https://doi.org/10.1117/12.2057150

KEYWORDS: Telescopes, Astatine, Interferometry, Observatories, Interferometers, Adaptive optics, Space telescopes, Stars, Large telescopes, Calibration

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Proceedings Article | 12 September 2012 Paper

Paper

To be or not to be asymmetric? VLTI and the mass loss geometry of red giants

Claudia Paladini, Daniela Klotz, Stephane Sacuto, Josef Hron, Markus Wittkowski, Eric Lagadec, Tijl Verhoelst, Alain Jorissen, Andrea Richichi, Martin Groenewegen, Hans Olofsson, Franz Kerschbaum

Proceedings Volume 8445, 84451R (2012) https://doi.org/10.1117/12.926380

KEYWORDS: Stars, Spherical lenses, Atmospheric modeling, Visibility, Interferometry, Data modeling, Astrophysics, Physics, Astronomy, Spatial resolution

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Proceedings Article | 12 September 2012 Paper

Paper

The Very Large Telescope Interferometer v2012+

Pierre Haguenauer, Roberto Abuter, Luigi Andolfato, Jaime Alonso, Guillaume Blanchard, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Philippe Gitton, Juan Carlos Gonzalez, Stéphane Guisard, Serge Guniat, Gerhard Hudepohl, Andreas Kaufer, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Sebastien Poupar, Andres Ramirez, Claudio Reineiro, Sridharan Rengaswamy, Thomas Rivinius, Markus Schöller, Christian Schmid, Alex Segovia, Nicolas Schuhler, Guillermo Valdes, Willem Jan de Wit, Markus Wittkowski

Proceedings Volume 8445, 84450D (2012) https://doi.org/10.1117/12.925323

KEYWORDS: Telescopes, Interferometers, Astatine, Interferometry, Large telescopes, Observatories, Systems engineering, Control systems, Mirrors, Sensors

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Proceedings Article | 22 July 2010 Paper

Paper

The very large telescope Interferometer: 2010 edition

Pierre Haguenauer, Jaime Alonso, Pierre Bourget, Stephane Brillant, Philippe Gitton, Stephane Guisard, Sébastien Poupar, Nicolas Schuhler, Roberto Abuter, Luigi Andolfato, Guillaume Blanchard, Jean-Philippe Berger, Angela Cortes, Frédéric Dérie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Andreas Glindemann, Serge Guniat, Gerhard Huedepohl, Andreas Kaufer, Jean-Baptiste Le Bouquin, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Andres Pino, Andres Ramirez, Sridharan Rengaswamy, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Markus Schoeller, Christian Schmid, Stan Stefl, Guillermo Valdes, Gerard van Belle, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7734, 773404 (2010) https://doi.org/10.1117/12.857070

KEYWORDS: Telescopes, Astatine, Interferometers, Interferometry, Adaptive optics, Large telescopes, Mirrors, Observatories, Statistical analysis, Image quality

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Proceedings Article | 28 July 2008 Paper

Paper

Mid-infrared view of cool evolved stars with the Very Large Telescope Interferometer

Keiichi Ohnaka, Thomas Driebe, Karl-Heinz Hofmann, Gerd Weigelt, Markus Wittkowski

Proceedings Volume 7013, 70134M (2008) https://doi.org/10.1117/12.788775

KEYWORDS: Stars, Silicates, Carbon, Mid-IR, Visibility, Large telescopes, Interferometers, Solids, Interferometry, Diamond

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Proceedings Article | 28 July 2008 Paper

Paper

VLTI-AMBER observations of Eta Carinae with the FINITO fringe tracker and spectral resolution 12000

Gerd Weigelt, Olivier Chesneau, Thomas Driebe, Renaud Foy, Didier Fraix-Burnet, Jose Groh, Karl-Heinz Hofmann, Stefan Kraus, Fabien Malbet, Alessandro Marconi, Philippe Mathias, Florentin Millour, Jean-Louis Monin, Romain Petrov, Frederik Rantakyrö, Andrea Richichi, Dieter Schertl, Markus Schöller, Philippe Stee, Leonardo Testi, Markus Wittkowski

Proceedings Volume 7013, 701303 (2008) https://doi.org/10.1117/12.796204

KEYWORDS: Visibility, Bromine, Spectral resolution, Phase measurement, Spectroscopy, Interferometry, Stars, Speckle, Telescopes, Binary data

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Proceedings Article | 28 July 2008 Paper

Paper

The Very Large Telescope Interferometer: an update

Pierre Haguenauer, Roberto Abuter, Jaime Alonso, Javier Argomedo, Bertrand Bauvir, Guillaume Blanchard, Henri Bonnet, Stéphane Brillant, Michael Cantzler, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Yves Durand, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stéphane Guisard, Nicolas Haddad, Gerhard Hudepohl, Christian Hummel, Nathaniel Jesuran, Andreas Kaufer, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Lévêque, Christopher Lidman, Pedro Mardones, Serge Ménardi, Sébastien Morel, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Stefan Sandrock, Markus Schöller, Nicolas Schuhler, Fabio Somboli, Stanislav Stefl, Mario Tapia, Gerard Van Belle, Anders Wallander, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7013, 70130C (2008) https://doi.org/10.1117/12.788209

KEYWORDS: Telescopes, Astatine, Adaptive optics, Mirrors, Interferometers, Large telescopes, Interferometry, IRIS Consortium, Sensors, Observatories

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Proceedings Article | 28 June 2006 Paper

Paper

VLTI-AMBER observations of Eta Carinae with high spatial resolution and spectral resolutions of 1,500 and 10,000

Gerd Weigelt, Romain Petrov, Olivier Chesneau, Kris Davidson, Armando Domiciano de Souza, Thomas Driebe, Renaud Foy, Didier Fraix-Burnet, Ted Gull, John Hillier, Karl-Heinz Hofmann, Stefan Kraus, Fabien Malbet, Alessandro Marconi, Philippe Mathias, Jean-Louis Monin, Florentin Millour, Keiichi Ohnaka, Frederik Rantakyrö, Andrea Richichi, Dieter Schertl, Markus Schöller, Philippe Stee, Leonardo Testi, Markus Wittkowski

Proceedings Volume 6268, 62682S (2006) https://doi.org/10.1117/12.671582

KEYWORDS: Visibility, Bromine, Spectral resolution, K band, Stars, Spatial resolution, Phase measurement, Observatories, Interferometry, Near infrared

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Proceedings Article | 28 June 2006 Paper

Paper

Experiences from the first AMBER open time observations

Fredrik Rantakyrö, Pascal Ballester, Stephane Brillant, Gilles Duvert, Emmanuel Galliano, Christian Hummel, Andreas Kaufer, Mario Kiekebusch, Etienne Le-Coarer, Tom Licha, Fabien Malbet, Pedro Mardones, Florentin Millour, Sebastien Morel, Isabelle Percheron, Monika Petr-Gotzens, Romain Petrov, Andrea Richichi, Thomas Rivinius, Markus Schöller, Stan Stefl, Martin Vannier, Markus Wittkowski, Gerard Zins

Proceedings Volume 6268, 62681N (2006) https://doi.org/10.1117/12.671910

KEYWORDS: Telescopes, Calibration, K band, Observatories, Astatine, Motion models, Astronomy, Spectral resolution, Lawrencium, Interferometry

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Proceedings Article | 28 June 2006 Paper

Paper

Adaptive optics quality metrics and the user constraint set for VLTI

I. Percheron, M. Wittkowski, R. Donaldson, E. Fedrigo, C. Lidman, S. Morel, F. Rantakyro, M. Schoeller, A. Wallander

Proceedings Volume 6268, 626842 (2006) https://doi.org/10.1117/12.671221

KEYWORDS: Adaptive optics, Telescopes, Interferometry, Image quality, Stars, Quality systems, Wavefronts, Visibility, Interferometers, Image acquisition

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Proceedings Article | 27 June 2006 Paper

Paper

Recent progress at the Very Large Telescope Interferometer

Markus Schöller, Javier Argomedo, Bertrand Bauvir, Leonardo Blanco-Lopez, Henri Bonnet, Stephane Brillant, Michael Cantzler, Johan Carstens, Fabio Caruso, Christian Choque-Cortez, Frederic Derie, Francoise Delplancke, Nicola Di Lieto, Martin Dimmler, Yves Durand, Mark Ferrari, Emmanuel Galliano, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stephane Guisard, Nicolas Haddad, Pierre Haguenauer, Nico Housen, Gerd Hudepohl, Christian Hummel, Andreas Kaufer, Mario Kiekebusch, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Leveque, Christopher Lidman, Pedro Mardones, Serge Menardi, Sebastien Morel, Manfred Mornhinweg, Jean-Luc Nicoud, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Stefan Sandrock, Fabio Somboli, Jason Spyromilio, Stanislav Stefl, Vincent Suc, Roberto Tamai, Mario Tapia, Martin Vannier, Gautam Vasisht, Anders Wallander, Stefan Wehner, Markus Wittkowski, Juan Zagal

Proceedings Volume 6268, 62680L (2006) https://doi.org/10.1117/12.672231

KEYWORDS: Telescopes, Astatine, Interferometers, IRIS Consortium, Large telescopes, Interferometry, Mirrors, Optical fibers, Spectral resolution, Data archive systems

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Proceedings Article | 20 October 2004 Paper

Paper

Preparing MIDI science operation at VLTI

Sebastien Morel, Pascal Ballester, Bertrand Bauvir, Peter Biereichel, Jean-Gabriel Cuby, Emmanuel Galliano, Nicholas Haddad, Nico Housen, Christian Hummel, Andreas Kaufer, Pierre Kervella, Isabelle Percheron, Florence Puech, Fredrik Rantakyro, Andrea Richichi, Cyrus Sabet, Markus Schoeller, Jason Spyromilio, Martin Vannier, Anders Wallander, Markus Wittkowski, Christoph Leinert, Uwe Graser, Udo Neumann, Walter Jaffe, Jeroen de Jong

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550116

KEYWORDS: Telescopes, Interferometry, Visibility, Observatories, Calibration, Interferometers, Sensors, Electronics, Photometry, Mirrors

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Proceedings Article | 20 October 2004 Paper

Paper

Observing with the VLT interferometer

Markus Wittkowski, Pascal Ballester, Tim Canavan, Fernando Comeron, Christian Hummel, Andreas Kaufer, Stephane Marteau, Gautier Mathys, Sebastien Morel, Petra Nass, Isabelle Percheron, Michele Peron, Monika Petr-Gotzens, Fredrik Rantakyro, Andrea Richichi, Markus Schoeller, David Silva, Mario van den Ancker, Anders Wallander

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550389

KEYWORDS: Calibration, Stars, Visibility, Interferometry, Telescopes, Interferometers, Astatine, Data archive systems, Mid-IR, Prisms

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Proceedings Article | 20 October 2004 Paper

Paper

Quality control and instrument trending for MIDI: First Quality Control and Data Flow Operations Results

Isabelle Percheron, Pascal Ballester, Cyrus Sabet, Markus Wittkowski, Sebastien Morel, Andrea Richichi

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551183

KEYWORDS: Calibration, Visibility, Data processing, Astronomy, Photometry, Interferometry, Data storage, Interferometers, Telescopes, Stars

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Proceedings Article | 20 October 2004 Paper

Paper

Observing the Seyfert 2 nucleus of NGC 1068 with the VLT interferometer

Huub Rottgering, Walter Jaffe, Klaus Meisenheimer, Helene Sol, Christoph Leinert, Andrea Richichi, Markus Wittkowski

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.556893

KEYWORDS: Interferometry, Galactic astronomy, Interferometers, Absorption, Spatial resolution, Telescopes, Data modeling, Visibility, Stars, Active galactic nuclei

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Dusty tori have been suggested to play a crucial role in determining the physical characteristics of active galactic nuclei (AGN), but investigation of their properties has stalled for lack of high resolution mid-IR imaging. Recently, a long-awaited breakthrough in this field was achieved: NGC 1068, a nearby AGN, was the first extragalactic object to be observed with a mid-IR interferometer, thereby obtaining the needed angular resolution to study the alleged torus. The instrument used was MIDI mounted on the ESO's VLT interferometer. The resulting 8-13 micron interferometric spectra indicated the presence of a thick (3 x 4 parsec) configuration of warm dust surrounding a hot ~1 pc component, marginally elongated in the direction perpendicular to the main orientation of the warm component. The structure of the 10 micron "silicate" absorption feature hinted at the presence of non-typical dust. In this proceeding, first the field of AGN research is briefly reviewed, with an emphasis on models of dusty tori. Second, the general properties of the key object NGC 1068 are discussed. Third, the MIDI data set is presented together with a first attempt to interpret this data in the context of tori models. Fourth, preliminary MIDI interferometric spectra of the nucleus of the nearby starbursting galaxy Circinus are presented. The apparent observed absence of both a hot component as well as a sharp absorption feature suggest that we view the torus more edge-on than is the case for NGC 1068. Finally, we briefly discuss the prospects of ESA's Darwin mission for observing nearby and distant AGN. The required capabilities for Darwin's first goal -- the search for and subsequent characterization of earth-like planets orbiting nearby stars -- are such that for its second goal -- high resolution astrophysical imaging -- the sensitivity will be similar to JWST and the angular resolution 1-2 orders better. This will allow detailed mapping of tori of low luminosity AGN such as NGC 1068 up to redshifts of 1 - 2 and more luminous AGN up to redshift of 10 and beyond.

Proceedings Article | 20 October 2004 Paper

Paper

Interferometric observations of the Mira star o Ceti with the VLTI/VINCI instrument in the near-infrared

Henry Woodruff, Maren Eberhardt, Thomas Driebe, Karl-Heinz Hofmann, Keiichi Ohnaka, Andrea Richichi, Dieter Schertl, Markus Schoeller, Michael Scholz, Gerd Weigelt, Markus Wittkowski, Peter Wood

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551245

KEYWORDS: Visibility, Stars, Calibration, Interferometry, Atmospheric modeling, K band, Data modeling, Spatial frequencies, Surface conduction electron emitter displays, Speckle

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Proceedings Article | 20 October 2004 Paper

Paper

VLTI science operations at Paranal

Fredrik Rantakyro, Emmanuel Galliano, Christian Hummel, Andreas Kaufer, Pierre Kervella, Sebastien Morel, Markus Schoeller, Martin Vannier, Markus Wittkowski

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550059

KEYWORDS: Telescopes, Calibration, Astatine, Observatories, Astronomical telescopes, Astronomy, Optical proximity correction, Stars, Interferometry, Particle swarm optimization

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Proceedings Article | 20 October 2004 Paper

Paper

VLTI technical advances: present and future

Andreas Glindemann, Maja Albertsen, Luigi Andolfato, Gerardo Avila, Pascal Ballester, Bertrand Bauvir, Francoise Delplancke, Frederic Derie, Martin Dimmler, Philippe Duhoux, Emmanuel di Folco, R. Frahm, Emmanuel Galliano, Bruno Gilli, Paul Giordano, Philippe Gitton, Stephane Guisard, Nico Housen, Christian Hummel, Alexis Huxley, Robert Karban, Pierre Kervella, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Tom Licha, Antonio Longinotti, Derek McKay, Serge Menardi, Guy Monnet, Sebastien Morel, Francesco Paresce, Isabelle Percheron, Monika Petr-Gotzens, Thanh Phan Duc, Joerg-Uwe Pott, Florence Puech, Fredrik Rantakyro, Andrea Richichi, Cyrus Sabet, Kevin Scales, Markus Schoeller, N. Schuhler, Mario van den Ancker, Martin Vannier, Anders Wallander, Markus Wittkowski, Rainer Wilhelm

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551468

KEYWORDS: Telescopes, Stars, Interferometry, Sensors, Adaptive optics, Astatine, Observatories, Near infrared, Mid-IR, IRIS Consortium

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Proceedings Article | 16 September 2004 Paper

Paper

VLT interferometry in the data flow system

Pascal Ballester, Tom Licha, Derek McKay, Isabelle Percheron, Michele Peron, Andrea Richichi, Cyrus Sabet, Markus Wittkowski

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.551098

KEYWORDS: Calibration, Interferometry, Visibility, Telescopes, Interferometers, Data modeling, Data archive systems, Sensors, Binary data, Astronomy

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Proceedings Article | 21 February 2003 Paper

Paper

The VLTI: a status report

Andreas Glindemann, J. Algomedo, Rodrigo Amestica, Pascal Ballester, Bertrand Bauvir, E. Bugueno, Serge Correia, Francisco Delgado, Francoise Delplancke, Frederic Derie, Philippe Duhoux, Emmanuel di Folco, Alberto Gennai, Bruno Gilli, Paul Giordano, Philippe Gitton, Stephane Guisard, Nico Housen, Alexis Huxley, Pierre Kervella, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Antonio Longinotti, Sebastien Morel, Francesco Paresce, Than Duc, Andrea Richichi, Markus Schoeller, Massimo Tarenghi, Anders Wallander, Markus Wittkowski, Rainer Wilhelm, S. Menardi

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458117

KEYWORDS: Stars, Telescopes, Interferometry, Sensors, Astatine, Adaptive optics, Observatories, Interferometers, K band, Mirrors

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Proceedings Article | 21 February 2003 Paper

Paper

First scientific results from the VLT interferometer

Francesco Paresce, Roy Van Boekel, Serge Correia, Emmanuel di Folco, Andreas Glindemann, Pierre Kervella, Andrea Richichi, Markus Schoeller, Massimo Tarenghi, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.456988

KEYWORDS: Visibility, Data modeling, Stars, Telescopes, Interferometers, Atmospheric modeling, K band, Interferometry, Solids, Cameras

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Proceedings Article | 21 February 2003 Paper

Paper

Interferometric studies of nearby galactic centers

Markus Wittkowski, Wolfgang Duschl, Karl-Heinz Hofmann, Alexander Men'shchikov, Gerd Weigelt

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457964

KEYWORDS: Interferometry, Visibility, Interferometers, K band, Spatial resolution, Clouds, Telescopes, Stars, Radio optics, Diffraction

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Proceedings Article | 21 February 2003 Paper

Paper

Atmospheric and internal turbulence measured on the Very Large Telescope Interferometer with VINCI

Emmanuel di Folco, Bertrand Koehler, Pierre Kervella, Marc Sarazin, Vincent Coude du Foresto, Markus Schoeller, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459142

KEYWORDS: Interferometry, Visibility, Atmospheric modeling, Telescopes, Turbulence, Modulation, Interferometers, Atmospheric optics, Phase shift keying, Adaptive optics

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Proceedings Article | 21 February 2003 Paper

Paper

Interferometric measurements of stellar intensity profiles

Markus Wittkowski, Christian Hummel

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457201

KEYWORDS: Visibility, Atmospheric modeling, Stars, Interferometry, Data modeling, Signal to noise ratio, Telescopes, Interferometers, Photodetectors, Calibration

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Proceedings Article | 21 February 2003 Paper

Paper

Commissioning the VLT interferometer: from first fringes towards a general user facility

Markus Schoeller, Philippe Gitton, Javier Argomedo, Pascal Ballester, Bertrand Bauvir, Roy Van Boekel, Michael Cantzler, Serge Correia, William Cotton, Francoise Delplancke, Frederic Derie, Philippe Duhoux, Toomas Erm, Emmanuel di Folco, Vincent Coude du Foresto, Alberto Gennai, Bruno Gilli, Paul Giordano, Andreas Glindemann, Stephane Guisard, Pablo Gutierrez, Nico Housen, Gerhard Huedepohl, Alexis Huxley, S. Jackisch, Walter Jaffe, Pierre Kervella, Arno van Kesteren, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Antonio Longinotti, Serge Menardi, Sebastien Morel, Lothar Noethe, Francesco Paresce, Isabelle Percheron, T. Phan Duc, A. Pino, D. Rabeling, A. Ramirez, Sylvie Robbe-Dubois, Andrea Richichi, A. Rijo, Cyrus Sabet, Stefan Sandrock, Damien Segransan, Jason Spyromilio, Roberto Tamai, Massimo Tarenghi, Anders Wallander, Rainer Wilhelm, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459678

KEYWORDS: Interferometers, Interferometry, Astronomical imaging, Astronomy, Telescopes

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Proceedings Article | 21 February 2003 Paper

Paper

Getting ready for high-accuracy measurements: the VLTI calibrators program

Isabelle Percheron, Andrea Richichi, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458243

KEYWORDS: Calibration, Visibility, Data acquisition, Telescopes, Interferometry, Databases, Astronomy, Interferometers, Observatories, Data analysis

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Proceedings Article | 21 February 2003 Paper

Paper

Coherent integration using phase bootstrapping

Christian Hummel, David Mozurkewich, James Benson, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459143

KEYWORDS: Visibility, Signal to noise ratio, Algorithm development, Atmospheric modeling, Observatories, Data integration, Detection and tracking algorithms, Data modeling, Interferometers, Stars

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Proceedings Article | 2 January 2002 Paper

Paper

VLT Interferometer Data Flow System: from observation preparation to data processing

Pascal Ballester, Alberto Chavan, Andreas Glindemann, Carlos Guirao, Walter Jaffe, Pierre Kervella, Michele Peron, Benoit Pirenne, Peter Quinn, Andrea Richichi, Cyrus Sabet, Markus Scholler, Andreas Wicenec, Rainer Wilhelm, Bruce Wiseman, Markus Wittkowski, Stefano Zampieri

Proceedings Volume 4844, (2002) https://doi.org/10.1117/12.460619

KEYWORDS: Interferometry, Telescopes, Interferometers, Calibration, Visibility, Data archive systems, Data processing, Observatories, Signal processing, Space telescopes

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Proceedings Article | 1 November 2001 Paper

Paper

Data flow system for the very large telescope interferometer

Pascal Ballester, Alberto Chavan, Bill Cotton, Vincent Coude du Foresto, Andreas Glindemann, Carlos Guirao, Walter Jaffe, Pierre Kervella, Antonio Longinotti, Isabelle Percheron, Michele Peron, Than Phan Duc, Benoit Pirenne, Peter Quinn, Andrea Richichi, Markus Schoeller, Andreas Wicenec, Rainer Wilhelm, Markus Wittkowski, Stefano Zampieri

Proceedings Volume 4477, (2001) https://doi.org/10.1117/12.447178

KEYWORDS: Telescopes, Interferometers, Calibration, Data archive systems, Interferometry, Observatories, Visibility, Stars, Large telescopes, Astronomy

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Proceedings Article | 5 July 2000 Paper

Paper

Observations of MIRA stars with the IOTA/FLUOR interferometer and comparison with MIRA star models

Karl-Heinz Hofmann, Udo Beckmann, Thomas Bloecker, Vincent Coude du Foresto, Marc Lacasse, Rafael Millan-Gabet, Sebastien Morel, B. Pras, Cyril Ruilier, Dieter Schertl, Michael Scholz, Victor Shenavrin, Wesley Traub, Gerd Weigelt, Markus Wittkowski, Boris Yudin

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390270

KEYWORDS: Stars, K band, Visibility, Temperature metrology, Interferometers, Spatial frequencies, Fiber optics, Atmospheric optics, Astronomy, Interferometry

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Showing 5 of 38 publications

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