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

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

12 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationOptical and Infrared Interferometry
Place of PublicationBellingham, WA
PublisherSPIE
Pages1-11
Number of pages11
Volume7013
ISBN (Print)9780819472236
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventOptical and Infrared Interferometry - Marseille, France
Duration: 23 Jun 200827 Jun 2008

Other

OtherOptical and Infrared Interferometry
Country/TerritoryFrance
CityMarseille
Period23/06/0827/06/08

Keywords

  • Altair
  • Beta lyrae
  • Fiber optics
  • Infrared
  • Interferometry
  • Rapid rotation

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