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Infrared images of the transiting disk in the ε Aurigae system

Author

Listed:
  • Brian Kloppenborg

    (University of Denver, 2112 East Wesley Avenue, Denver, Colorado 80208, USA)

  • Robert Stencel

    (University of Denver, 2112 East Wesley Avenue, Denver, Colorado 80208, USA)

  • John D. Monnier

    (University of Michigan, 500 Church Street, Ann Arbor, Michigan 48109-1090, USA)

  • Gail Schaefer

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Ming Zhao

    (Jet Propulsion Laboratory, 4800 Oak Grove Drive, M.S. 169-327, Pasadena, California 91101, USA)

  • Fabien Baron

    (University of Michigan, 500 Church Street, Ann Arbor, Michigan 48109-1090, USA)

  • Hal McAlister

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Theo ten Brummelaar

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Xiao Che

    (University of Michigan, 500 Church Street, Ann Arbor, Michigan 48109-1090, USA)

  • Chris Farrington

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Ettore Pedretti

    (School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK)

  • P. J. Sallave-Goldfinger

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Judit Sturmann

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Laszlo Sturmann

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Nathalie Thureau

    (School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK)

  • Nils Turner

    (Center for High Angular Resolution Astronomy, Georgia State University, PO Box 3969, Atlanta, Georgia 30302-3969, USA)

  • Sean M. Carroll

    (California Institute of Technology, 1200 East California Avenue, Pasadena, California 91125, USA)

Abstract

A distant eclipse glimpsed Every 27.1 years the bright binary star ε Aurigae dims as it undergoes an eclipse lasting about 18 months. Until now the body that transits the disk of the ε Aur system has been undetectable and the subject of much speculation. The preferred explanation is that the invisible companion is a tilted disk of opaque material surrounding a hidden star. Recent work implies that the system consists of a visible F-star, paired with a single B5V star enshrouded by a disk at a temperature of about 500K. Now interferometric observations made with the six-telescope CHARA Array in November and December 2009 have produced images of the eclipsing body in the infrared, revealing it to be an opaque disk, its elliptical shape suggesting that it is tilting as predicted.

Suggested Citation

  • Brian Kloppenborg & Robert Stencel & John D. Monnier & Gail Schaefer & Ming Zhao & Fabien Baron & Hal McAlister & Theo ten Brummelaar & Xiao Che & Chris Farrington & Ettore Pedretti & P. J. Sallave-Go, 2010. "Infrared images of the transiting disk in the ε Aurigae system," Nature, Nature, vol. 464(7290), pages 870-872, April.
    • Handle: RePEc:nat:nature:v:464:y:2010:i:7290:d:10.1038_nature08968
    DOI: 10.1038/nature08968
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