Spatially resolved dusty torus toward the red supergiant WOH G64 in the Large Magellanic Cloud

2008/03/26 by K. Ohnaka, Keiichi Ohnaka, Thomas Driebe +7 · 3 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Galaxies: Formation, Evolution, Phenomena #Galaxy #Interferometry #Large Magellanic Cloud #Luminosity #Physics #Red supergiant #Stars #Stellar, planetary, and galactic studies #Supergiant #Torus #astro-ph

paper · pdf · doi:10.1051/0004-6361:200809469

9 pages, 6 figures, accepted for publication in A&A

arxiv created 2008/03/26 · openalex publication_date 2008/04/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Aims. We present N-band spectro-interferometric observations of the red supergiant WOH G64 in the Large Magellanic Cloud (LMC) using MIDI at the Very Large Telescope Interferometer (VLTI). While the very high luminosity (∼ ) previously estimated for WOH G64 suggests that it is a very massive star with an initial mass of ~40 , its low effective temperature (~3200 K) is in serious disagreement with the current stellar evolution theory.

Citations

• The size distribution of interstellar grains
• First VLTI/MIDI observations of a Be star: Alpha Arae
• ASpitzer Space TelescopeInfrared Spectrograph Spectral Atlas of Luminous 8 μm Sources in the Large Magellanic Cloud
• The Spitzer Space Telescope Mission

Cited by

• Molecules and dust production in the Magellanic Clouds
• THE MASS-LOSS RETURN FROM EVOLVED STARS TO THE LARGE MAGELLANIC CLOUD. II. DUST PROPERTIES FOR OXYGEN-RICH ASYMPTOTIC GIANT BRANCH STARS
• SPECTRAL TYPES OF RED SUPERGIANTS IN NGC 6822 AND THE WOLF-LUNDMARK-MELOTTE GALAXY

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• A Spectroscopic Hunt for Post-Red Supergiants in the Large Magellanic Cloud I: Preliminary Results
• Episodic mass loss in the very luminous red supergiant [W60] B90 in the Large Magellanic Cloud