Translator Disclaimer
12 September 2012 Imaging from the first 6-beam infrared combiner
Author Affiliations +
Michigan InfraRed Combiner (MIRC) is a near-infrared image-plane combiner at the CHARA array which consists of six 1-m diameter telescopes with the longest baseline of 330m. MIRC was upgraded from a 4-beam to a full 6-beam combiner in July 2011, which now records interferometry data of 15 baselines and 20 triangles simultaneously. The improved snapshot UV coverage has greatly boosted the ability for imaging complicated targets such as the asymmetry of circumstellar disks, interacting binaries and the surfaces of spotted stars. In addition, the Photometric Channels subsystem, which directly measures the real time flux of individual beams, has been upgraded to increase the light throughput to improve the visibility and closure phase calibration. The system sensitivity has been improved as well to allow fainter objects such as Young Stellar Objects (YSOs) to be observable with MIRC for the first time. Our presentation will conclude with first preliminary results of imaging two Be binaries observed by the upgraded MIRC.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiao Che, John D. Monnier, Stefan Kraus, Fabien Baron, Ettore Pedretti, Nathalie Thureau, and Scott Webster "Imaging from the first 6-beam infrared combiner", Proc. SPIE 8445, Optical and Infrared Interferometry III, 84450Z (12 September 2012);


Imaging the surface of Altair and a MIRC update
Proceedings of SPIE (July 15 2008)
Michelson interferometry with Keck I
Proceedings of SPIE (July 24 1998)
VLT interferometry in the data flow system
Proceedings of SPIE (September 16 2004)

Back to Top