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Searching masers from the Sagittarius stellar stream

Published online by Cambridge University Press:  07 February 2024

Yuanwei Wu Open the ORCID record for Yuanwei Wu [Opens in a new window] ,
Bo Zhang ,
Yan Gong ,
Wenjin Yang Open the ORCID record for Wenjin Yang [Opens in a new window]  and
Nicolas Mauron
Yuanwei Wu*
Affiliation:
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China.
Bo Zhang
Affiliation:
Shanghai Astronomical Observatory, Chinese Adademy of Sciences, Shanghai 200030, China
Yan Gong
Affiliation:
Max-Plank-Institut für Radioastronomie, auf dem Hügel 69, 53121 Bonn, Germany
Wenjin Yang
Affiliation:
Max-Plank-Institut für Radioastronomie, auf dem Hügel 69, 53121 Bonn, Germany
Nicolas Mauron
Affiliation:
Université de Montpellier, Laboratoire Univers et Particules de Montpellier CNRS/UM, Place Batailon, 34095 Montpellier, France
*
email: yuanwei.wu@ntsc.ac.cn
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Abstract

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Large scale optical and infrared surveys have revealed numbers of accretion-derived stellar features within the halo of the Galaxy. These coherent tail-like features are produced by encounters with satellite dwarf galaxies. We conducted an SiO and H2O maser survey towards O-rich AGBs towards the orbital plane of the Sgr Stellar Stream from 2016. Up to now, maser emissions have been found from 60 sources, most of which are detected for the first time. However, their distances and kinematics suggest they are still disk stars.

Keywords

Masersstars: AGB and post-AGBGalaxy: structure
Type
Poster 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. 128 - 131
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Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NoDerivatives licence (http://creativecommons.org/licenses/by-nd/4.0/), which permits re-use, distribution, and reproduction in any medium, provided that no alterations are made and the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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