12 September 2012 Imaging rapid rotators with the PAVO beam combiner at CHARA
Author Affiliations +
Abstract
Rotation plays a crucial role in the shaping and evolution of a star. Widely incorporated into early and late-stage stellar models, rotational effects remain poorly understood in main-sequence stars, mainly due to the absence of observations challenging contemporary models. The Precision Astronomical Visible Observations (PAVO) instrument, located at the Center for High Angular Resolution Astronomy (CHARA) array, provides the highest angular resolution yet achieved (0.3 mas) for stars V=8 magnitude and brighter. We describe instrumental techniques and advances implemented in PAVO@CHARA to observe heavily resolved targets and yield well calibrated closure phases which are key milestones on the pathway to delivery of the first-ever image in the visible of fast-rotating main-sequence star.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vicente Maestro, Yitping Kok, Daniel Huber, Michael J. Ireland, Peter G. Tuthill, Tim White, Gail Schaefer, Theo A. ten Brummelaar, Harold A. McAlister, Nils Turner, Christopher D. Farrington, P. J. Goldfinger, "Imaging rapid rotators with the PAVO beam combiner at CHARA", Proc. SPIE 8445, Optical and Infrared Interferometry III, 84450G (12 September 2012); doi: 10.1117/12.926881; https://doi.org/10.1117/12.926881
PROCEEDINGS
15 PAGES


SHARE
RELATED CONTENT

Observing the Seyfert 2 nucleus of NGC 1068 with the...
Proceedings of SPIE (October 20 2004)
Data flow system for the very large telescope interferometer
Proceedings of SPIE (November 01 2001)
Recent progress at the CHARA interferometric array
Proceedings of SPIE (June 27 2006)
VLT interferometry in the data flow system
Proceedings of SPIE (September 16 2004)
Sydney University Stellar Interferometer
Proceedings of SPIE (July 24 1998)
FLUOR fibered beam combiner at the CHARA array
Proceedings of SPIE (February 21 2003)

Back to Top