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Water and silicon-monoxide masers monitored towards the “water fountain” sources

Published online by Cambridge University Press:  16 August 2023

H. Imai Open the ORCID record for H. Imai [Opens in a new window] ,
K. Amada Open the ORCID record for K. Amada [Opens in a new window] ,
J. F. Gómez ,
L. Uscanga Open the ORCID record for L. Uscanga [Opens in a new window] ,
D. Tafoya ,
K. Nakashima ,
K.-Y. Shum Open the ORCID record for K.-Y. Shum [Opens in a new window] ,
Y. Hamae ,
R. Burns  and
G. Orosz Open the ORCID record for G. Orosz [Opens in a new window]
H. Imai
Affiliation:
Amanogawa Galaxy Astronomy Research Center, Kagoshima University, Japan Center for General Education, Kagoshima University
K. Amada
Affiliation:
Graduate School of Science and Engineering, Kagoshima University
J. F. Gómez
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Spain
L. Uscanga
Affiliation:
Departamento de Astronomia, Universidad de Guanajuato, Mexico
D. Tafoya
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Sweden
K. Nakashima
Affiliation:
Faculty of Science, Kagoshima University
K.-Y. Shum
Affiliation:
Faculty of Science, Kagoshima University
Y. Hamae
Affiliation:
Faculty of Science, Kagoshima University
R. Burns
Affiliation:
Division of Science, National Astronomical Observatory of Japan
G. Orosz
Affiliation:
User Support Team, Joint Institute for VLBI in Europe ERIC, Netherlands
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Abstract

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We have investigated the evolution of 12 “water fountain” sources in real time in the accompanying H2O 2o and SiO masers through our FLASHING (Finest Legacy Acquisitions of SiO-/ H2O 2o-maser Ignitions by Nobeyama Generation) project. It has been confirmed that these masers are excellent probes of new jet blob ejections, acceleration of the material supplied from the parental circumstellar envelope and entrained by the stellar jets yielding its deceleration. Possible periodic variations of the maser emission, reflecting properties of the central dying stars or binary systems, will be further investigated.

Keywords

masersstars: AGB and post-AGBstars: mass lossstars: windsoutflows
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S370: Winds of Stars and Exoplanets , August 2021 , pp. 91 - 93
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

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