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Masers in evolved stars; the Bulge Asymmetries and Dynamical Evolution (BAaDE) Survey

Published online by Cambridge University Press:  07 February 2024

Loránt O. Sjouwerman Open the ORCID record for Loránt O. Sjouwerman [Opens in a new window] ,
Ylva M. Pihlström Open the ORCID record for Ylva M. Pihlström [Opens in a new window] ,
Megan O. Lewis Open the ORCID record for Megan O. Lewis [Opens in a new window] ,
Rajorshi Bhattacharya Open the ORCID record for Rajorshi Bhattacharya [Opens in a new window] ,
Mark J Claussen  and
BAaDE Collaboration
Loránt O. Sjouwerman*
Affiliation:
National Radio Astronomy Observatory, Socorro New Mexico, USA 87801.
Ylva M. Pihlström
Affiliation:
University of New Mexico, Albuquerque New Mexico, USA 87131
Megan O. Lewis
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw, Poland 00-716
Rajorshi Bhattacharya
Affiliation:
University of New Mexico, Albuquerque New Mexico, USA 87131
Mark J Claussen
Affiliation:
National Radio Astronomy Observatory, Socorro New Mexico, USA 87801.
*
email: lsjouwer@nrao.edu
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Abstract

The Bulge Asymmetries and Dynamic Evolution (BAaDE) project attempts to improve our knowledge about the structure and dynamics of the inner Milky Way galaxy by sampling tens of thousands of infrared color-selected evolved stars with circumstellar envelopes (CSEs). The SiO masers in these CSEs yield the object’s line-of-sight velocity instantly and accurately, and together provide a sample of point-mass particles that are complementary to high-mass star formation masers typically found in the Galactic Disk as well as to optical samples that cannot reach into the Galactic Plane and Bulge due to extremely high visual extinction. This presentation introduces the BAaDE survey and highlights current results.

Keywords

Milky Way galaxyGalaxy structureAsymptotic Giant Branch starsmaserscircumstellar material
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S380: Cosmic Masers: Proper Motion toward the Next-Generation Large Projects , December 2022 , pp. 292 - 299
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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