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Maser, infrared and optical emission for late-type stars in the Galactic plane

Published online by Cambridge University Press:  16 July 2018

L. H. Quiroga-Nuñez ,
H. J. van Langevelde ,
L. O. Sjouwerman ,
Y. M. Pihlström ,
M. J. Reid ,
A. G. A. Brown  and
J. A. Green
L. H. Quiroga-Nuñez
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, Leiden, The Netherlands. email: quiroganunez@strw.leidenuniv.nl Joint Institute for VLBI ERIC (JIVE), Postbus 2, Dwingeloo, The Netherlands.
H. J. van Langevelde
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, Leiden, The Netherlands. email: quiroganunez@strw.leidenuniv.nl Joint Institute for VLBI ERIC (JIVE), Postbus 2, Dwingeloo, The Netherlands.
L. O. Sjouwerman
Affiliation:
National Radio Astronomy Observatory, P.O. Box 0, Lopezville Road 1001, Socorro, USA.
Y. M. Pihlström
Affiliation:
Department of Physics and Astronomy, University of New Mexico, MSC07 4220, Albuquerque, USA.
M. J. Reid
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, USA.
A. G. A. Brown
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, Leiden, The Netherlands. email: quiroganunez@strw.leidenuniv.nl
J. A. Green
Affiliation:
CSIRO Astronomy and Space Science, Australia Telescope National Facility, P.O. Box 76, Epping, Australia.
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Abstract

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Radio astrometric campaigns using VLBI have provided distances and proper motions for masers associated with young massive stars (BeSSeL survey). The ongoing BAaDE project plans to obtain astrometric information of SiO maser stars located in the inner Galaxy. These stars are associated with evolved, mass-losing stars. By overlapping optical (Gaia), infrared (2MASS, MSX and WISE) and radio (BAaDE) sources, we expect to obtain important clues on the intrinsic properties and population distribution of late-type stars. Moreover, a comparison of the Galactic parameters obtained with Gaia and VLBI can be done using radio observations on different targets: young massive stars (BeSSeL) and evolved stars (BAaDE).

Keywords

Galaxy: bulgestars: late-typemasersastrometry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S336: Astrophysical Masers: Unlocking the Mysteries of the Universe , September 2017 , pp. 184 - 186
Copyright
Copyright © International Astronomical Union 2018 

References

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