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Imaging the surface of Altair and a MIRC update

Monnier, John D. and Zhao, M. and Pedretti, E. and Thureau, N. and Ireland, M. and Muirhead, P. and Berger, J.-P. and Millan-Gabet, R. and van Belle, G. and ten Brummelaar, T. and McAlister, H. and Ridgway, S. and Turner, N. and Sturmann, L. and Sturmann, J. and Berger, D. and Tannirkulam, A. and Blum, J. (2008) Imaging the surface of Altair and a MIRC update. In: Optical and Infrared Interferometry. Proceedings of SPIE. No.7013. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 701302. ISBN 9780819472236.

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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.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Monnier, John D.0000-0002-3380-3307
Zhao, M.0000-0002-4258-9517
Ireland, M.0000-0002-6194-043X
Muirhead, P.0000-0002-0638-8822
Berger, J.-P.0000-0001-5025-0428
Millan-Gabet, R.0000-0003-0447-5866
van Belle, G.0000-0002-8552-158X
ten Brummelaar, T.0000-0002-0114-7915
Turner, N.0000-0001-8292-1943
Tannirkulam, A.0000-0002-9396-5551
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). This work has been supported by the University of Michigan, the National Science Foundation and NASA.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
University of MichiganUNSPECIFIED
Subject Keywords:interferometry, infrared, rapid rotation, fiber optics, altair, beta lyrae
Series Name:Proceedings of SPIE
Issue or Number:7013
Record Number:CaltechAUTHORS:20180802-154730855
Persistent URL:
Official Citation: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, "Imaging the surface of Altair and a MIRC update", Proc. SPIE 7013, Optical and Infrared Interferometry, 701302 (15 July 2008); doi: 10.1117/12.789754;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88541
Deposited By: George Porter
Deposited On:03 Aug 2018 21:04
Last Modified:16 Nov 2021 00:27

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