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The VLT-FLAMES Tarantula Survey XV. VFTS 822: A candidate Herbig B[e] star at low metallicity

Kalari, V. M.; Vink, J. S.; Dufton, P. L.; Evans, C. J.; Dunstall, P. R.; Sana, H.; Clark, J. S.; Ellerbroek, L.; de Koter, A.; Lennon, D. J. and Taylor, W. D. (2014). The VLT-FLAMES Tarantula Survey XV. VFTS 822: A candidate Herbig B[e] star at low metallicity. Astronomy & Astrophysics, 564, article no. L7.

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We report the discovery of the B[e] star VFTS 822 in the 30 Doradus star-forming region of the Large Magellanic Cloud, classified by optical spectroscopy from the VLT-FLAMES Tarantula Survey and complementary infrared photometry. VFTS 822 is a relatively low-luminosity (log L = 4.04 ± 0.25 L) B8[e] star. In this Letter, we evaluate the evolutionary status of VFTS 822 and discuss its candidacy as a Herbig B[e] star. If the object is indeed in the pre-main sequence phase, it would present an exciting opportunity to spectroscopically measure mass accretion rates at low metallicity, to probe the effect of metallicity on accretion rates.

Item Type: Journal Item
Copyright Holders: 2014 ESO
ISSN: 1432-0746
Keywords: stars: emission-line, Be; stars: pre-main sequence; supergiants; Hertzsprung-Russell and C-M diagrams; Magellanic Clouds
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Astronomy
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Item ID: 53986
Depositing User: J. Simon Clark
Date Deposited: 28 Mar 2018 11:05
Last Modified: 11 Dec 2018 10:21
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