Imaging the surface of Altair and a MIRC update

John D. Monnier; M. Zhao; E. Pedretti; N. Thureau; M. Ireland; P. Muirhead; J.-P. Berger; R. Millan-Gabet; G. Van Belle; T. ten Brummelaar; H. McAlister; S. Ridgway; N. Turner; L. Sturmann; J. Sturmann; D. Berger; A. Tannirkulam; J. Blum

doi:10.1117/12.789754

15 July 2008 Imaging the surface of Altair and a MIRC update

John D. Monnier, M. Zhao, E. Pedretti, N. Thureau, M. Ireland, P. Muirhead, J.-P. Berger, R. Millan-Gabet, G. Van Belle, T. ten Brummelaar, H. McAlister, S. Ridgway, N. Turner, L. Sturmann, J. Sturmann, D. Berger, A. Tannirkulam, J. Blum

Author Affiliations +

Proceedings Volume 7013, Optical and Infrared Interferometry; 701302 (2008) https://doi.org/10.1117/12.789754
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We report the first scientific results from the Michigan Infrared Combiner (MIRC), including the first resolved image of a main-sequence star besides the Sun. Using the CHARA Array, MIRC was able to clearly resolve the well-known elongation of Altair's photosphere due to centrifugal distortion, and was also able to unambiguously image the effect of gravity darkening. In this report, we also show preliminary images of the interacting binary β Lyr and give an update of MIRC performance.

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John D. Monnier, M. Zhao, E. Pedretti, N. Thureau, M. Ireland, P. Muirhead, J.-P. Berger, R. Millan-Gabet, G. Van Belle, T. ten Brummelaar, H. McAlister, S. Ridgway, N. Turner, L. Sturmann, J. Sturmann, D. Berger, A. Tannirkulam, and J. Blum "Imaging the surface of Altair and a MIRC update", Proc. SPIE 7013, Optical and Infrared Interferometry, 701302 (15 July 2008); https://doi.org/10.1117/12.789754

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