Volume 564, April 2014
|Number of page(s)||5|
|Published online||02 April 2014|
The VLT-FLAMES Tarantula Survey. XV. VFTS 822: A candidate Herbig B[e] star at low metallicity⋆,⋆⋆,⋆⋆⋆
1 Armagh Observatory, College Hill, Armagh BT61 9DG UK
2 Department of Physcis & Astronomy, Queen’s University Belfast, BT7 1NN, UK
3 UK Astronomy Technology Centre, Royal Observatory, Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK
4 ESA/STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA
5 Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
6 Astronomical Institute Anton Pannekoek, Amsterdam University, Science Park 904, 1098 XH, Amsterdam, The Netherlands
7 Institue voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
8 European Space Astronomy Centre, Camino bajo del Castillo, Villanueva de la Cañada, 28692 Madrid, Spain
Received: 19 December 2013
Accepted: 13 January 2014
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.
Key words: stars: emission-line, Be / stars: pre-main sequence / supergiants / Hertzsprung-Russell and C-M diagrams / Magellanic Clouds
Based on the observations at the European Southern Observatory Very Large Telescope in programme 182.D-0222.
Table 1 and Fig. 4 are available in electronic form at http://www.aanda.org
Final reduced FLAMES spectra are only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (220.127.116.11) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/564/L7
© ESO, 2014
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