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Herbig Ae/Be stars with TGAS parallaxes in the HR diagram

Published online by Cambridge University Press:  07 March 2018

Miguel Vioque Open the ORCID record for Miguel Vioque [Opens in a new window] ,
René D. Oudmaijer  and
Deborah Baines
Miguel Vioque*
Affiliation:
School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom Isdefe, European Space Astronomy Centre (ESAC), Madrid, Spain
René D. Oudmaijer
Affiliation:
School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom
Deborah Baines
Affiliation:
Isdefe, European Space Astronomy Centre (ESAC), Madrid, Spain
*
*email: [email protected]
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Abstract

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The intermediate mass Herbig Ae/Be stars are young stars approaching the Main Sequence and are key to understanding the differences in formation mechanisms between magnetic low mass stars and non-magnetic high mass stars. A large fraction of known Herbig Ae/Be stars have TGAS parallaxes, which were used to derive luminosities and place 107 of these objects in the HR diagram, increasing the number of objects using directly determined parallaxes by a factor of 5. We also studied the characteristics of the infrared excesses of this set of Herbig Ae/Be stars and we linked our results to an evolutionary analysis.

Keywords

stars: formationstars: fundamental parametersHertzsprung-Russell diagramstars: pre–main-sequenceinfrared: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 277 - 278
Copyright
Copyright © International Astronomical Union 2018 

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