Dr. Frank Hill Profile

Dr. Frank Hill

Survey Scientist at National Solar Observatory

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Author

Publications (12)

Proceedings Article | 6 July 2018 Paper

Design of a next generation synoptic solar observing network: solar physics research integrated network group (SPRING)

Sanjay Gosain, Frank Hill, Alexei Pevtsov, Valentin Pillet, Markus Roth, Michael Thompson

Proceedings Volume 10702, 107024H (2018) https://doi.org/10.1117/12.2306555

KEYWORDS: Magnetism, Telescopes, Solar processes, Iron, Doppler effect, Mirrors, Observatories, Sun, Signal to noise ratio, Space telescopes

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Long-term synoptic observations of the Sun in different wavelength regions are essential to understand its secular behavior. Such observations have proven very important for discovery of 11 year solar activity cycle, 22 year magnetic cycle, polar field reversals, Hale’s polarity law, Joy’s law, that helped Babcock and Leighton to propose famous solar dynamo model. In more recent decades, the societal impact of the secular changes in Sun’s output has been felt in terms of solar inputs to terrestrial climate-change and space-weather hazards. Further, it has been realized that to better understand the activity phenomena such as flares and coronal mass ejections (CMEs) one needs synoptic observations in multiple spectral lines to enable tomographic inference of physical parameters. Currently, there are both space and ground based synoptic observatories. However, given the requirements for the long-term stability and reliability of such synoptic datasets, ground-based facilities are more preferable. Also, the ground based observatories are easy to maintain or upgrade while detailed and frequent calibrations are easily possible. The only ground-based facility that currently provides full-disk velocity and magnetic field maps of the Sun around the clock and at good cadence, is the Global Oscillations Network Group (GONG) network of National Solar Observatory (NSO) which is operational since the mid 90s. Due to its aging instrumentation, operating for nearly three decades, and new requirements to obtain multiwavelength observations, a need is felt in the solar community to build a next generation synoptic observatory network. A group of international observatories have come together under the auspices of SOLARNET program, funded by European Union (EU), to carryout a preliminary design study of such a synoptic solar observing facility called “SPRING”, which stands for Solar Physics Research Integrated Network Group. In this article we will present concept of SPRING and the optical design concept of its major instruments.ts.

Proceedings Article | 23 June 2006 Paper

Advanced Technology Solar Telescope: a progress report

K. Richards, S. Hegwer, S. Keil, N. Dalrymple, J. Wagner, J. Ditsler, B. Goodrich, E. Hansen, F. Hill, R. Hubbard, R. Price, J. Barr, L. Phelps, M. Warner, T. Rimmele

Proceedings Volume 6267, 626709 (2006) https://doi.org/10.1117/12.672495

KEYWORDS: Telescopes, Control systems, Mirrors, Wavefronts, Adaptive optics, Observatories, Control systems design, Buildings, Interfaces, Solar telescopes

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Proceedings Article | 23 June 2006 Paper

Site testing for the Advanced Technology Solar Telescope

W. Brown, C. Denker, J. Briggs, H. Lin, T. Horst, J. Kuhn, P. Brandt, M. Collados, F. Hill, T. Brown, J. Beckers, M. Penn, A. Lecinski, H. Socas-Navarro, S. Fletcher, K. Streander, S. Oncley, T. Rimmele, R. Radick, S. Hegwer, M. Komsa

Proceedings Volume 6267, 62671T (2006) https://doi.org/10.1117/12.673677

KEYWORDS: Telescopes, Lanthanum, Solar telescopes, Infrared telescopes, Observatories, Astronomy, Data analysis, Absorption, Turbulence, Optical instrument design

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Proceedings Article | 15 September 2005 Paper

Advanced Technology Solar Telescope: a progress report

K. Richards, R. Hubbard, J. Wagner, T. Rimmele, N. Dalrymple, B. Goodrich, M. Warner, L. Phelps, E. Hansen, F. Hill, S. Keil

Proceedings Volume 5901, 590104 (2005) https://doi.org/10.1117/12.618354

KEYWORDS: Telescopes, Mirrors, Control systems, Adaptive optics, Solar telescopes, Wavefronts, Wavefront sensors, Interfaces, Observatories, Visible radiation

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Proceedings Article | 28 September 2004 Paper

Advanced Technology Solar Telescope: conceptual design and status

Thomas Rimmele, Jeremy Wagner, Ron Price, Nathan Dalrymple, Steven Hegwer, Rob Hubbard, Jacobus Oschmann, Bret Goodrich, Stephen Keil, Mark Warner, Frank Hill

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.552405

KEYWORDS: Telescopes, Adaptive optics, Optical instrument design, Polarization, Solar telescopes, Polarimetry, Mirrors, Visible radiation, Space telescopes, Control systems design

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Proceedings Article | 28 September 2004 Paper

Solar site testing for the Advanced Technology Solar Telescope

Kim Streander, Steven Fletcher, Haosheng Lin, Jacques Beckers, John Briggs, Steve Oncley, T. Horst, Matthew Penn, Jeff Kuhn, W. Brown, Hector Socas-Navarro, Frank Hill, Steven Hegwer, Mark Komsa, Timothy Brown, Manuel Collados, Peter Brandt, Alice Lecinski, Carsten Denker, Thomas Rimmele

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.551812

KEYWORDS: Lanthanum, Solar telescopes, Telescopes, Observatories, Astronomy, Infrared telescopes, Absorption, Statistical analysis, Coronagraphy, Wind measurement

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Proceedings Article | 16 September 2004 Paper

The Virtual Solar Observatory: status and initial operational experience

Joseph Gurman, Igor Suarez-Sola, George Dimitoglou, Joseph Hourcle, Keiji Yoshimura, Petrus Martens, Richard Bogart, Alisdair Davey, Karen Tian, Frank Hill, Steven Wampler

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.552842

KEYWORDS: Observatories, Human-machine interfaces, Data archive systems, Solar processes, Data modeling, Physics, Distributed computing, Information technology, Data mining, Data centers

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Proceedings Article | 4 February 2004 Paper

Advanced Technology Solar Telescope: a progress report

Nathan Dalrymple, Thomas Rimmele, Rob Hubbard, Christoph Keller, Mark Warner, Frank Hill, Ron Price, Stephen Keil, Jim Oschmann

Proceedings Volume 5171, (2004) https://doi.org/10.1117/12.508575

KEYWORDS: Mirrors, Telescopes, Skin, Solar telescopes, Adaptive optics, Gemini Observatory, Temperature metrology, Observatories, Domes, Thermal modeling

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Proceedings Article | 11 February 2003 Paper

Design and development of the Advanced Technology Solar Telescope

Richard Radick, Dauxing Ren, Jacobus Oschmann, Thomas Rimmele, Frank Hill, Steven Hegwer, Stephen Keil, Christoph Keller, John Briggs, Nathan Dalrymple, Mark Warner

Proceedings Volume 4853, (2003) https://doi.org/10.1117/12.460273

KEYWORDS: Magnetism, Telescopes, Adaptive optics, Light scattering, Mirrors, Solar telescopes, Solar processes, Optical instrument design, Visible radiation, Observatories

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Proceedings Article | 11 February 2003 Paper

Environmental factors affecting solar seeing

Frank Hill, Steven Hegwer, John Briggs, Richard Radick

Proceedings Volume 4853, (2003) https://doi.org/10.1117/12.460298

KEYWORDS: Turbulence, Observatories, Water, Electroluminescence, Telescopes, Environmental sensing, Convection, Meteorology, Solar telescopes, Lanthanum

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Proceedings Article | 4 February 2003 Paper

Technical challenges of the Advanced Technology Solar Telescope

Jacobus Oschmann, John Briggs, Stephen Wampler, Christoph Keller, Deqing Ren, Jeremy Wagner, Frank Hill, Richard Radick, Rob Hubbard, Steven Hegwer, Thomas Rimmele, Stephen Keil, Mark Warner, Bret Goodrich, Nathan Dalrymple

Proceedings Volume 4837, (2003) https://doi.org/10.1117/12.456707

KEYWORDS: Telescopes, Adaptive optics, Polarization, Mirrors, Solar telescopes, Optical instrument design, Polarimetry, Solar processes, Magnetism, Monochromatic aberrations

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Proceedings Article | 16 December 2002 Paper

EGSO in need for a global schema

Anthony Finkelstein, Jean Aboudarham, Isabelle Scholl, Ester Antonucci, Dave Pike, Robert Bentley, Valentin Zharkova, Andre Csillaghy, Joseph Gurman, Luigi Ciminiera, Frank Hill

Proceedings Volume 4846, (2002) https://doi.org/10.1117/12.460825

KEYWORDS: Observatories, Data modeling, Solar processes, Data archive systems, Human-machine interfaces, Satellites, Interfaces, Earth observing sensors, Chemical elements, Applied sciences

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Showing 5 of 12 publications

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