Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-26T03:09:46.197Z Has data issue: false hasContentIssue false
  • English
  • Français

Discovery of SiO masers in the “Water Fountain” source, IRAS 16552–3050

Published online by Cambridge University Press:  07 February 2024

Kei Amada Open the ORCID record for Kei Amada [Opens in a new window] ,
Hiroshi Imai Open the ORCID record for Hiroshi Imai [Opens in a new window] ,
Yuhki Hamae ,
Keisuke Nakashima Open the ORCID record for Keisuke Nakashima [Opens in a new window] ,
Ka-Yiu Shum Open the ORCID record for Ka-Yiu Shum [Opens in a new window] ,
Daniel Tafoya ,
Lucero Uscanga Open the ORCID record for Lucero Uscanga [Opens in a new window] ,
José F. Gómez Open the ORCID record for José F. Gómez [Opens in a new window] ,
Gabor Orosz Open the ORCID record for Gabor Orosz [Opens in a new window]  and
Ross A. Burns Open the ORCID record for Ross A. Burns [Opens in a new window]
Kei Amada*
Affiliation:
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan.
Hiroshi Imai
Affiliation:
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan. Amanogawa Galaxy Astronomy Research Center, Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan Center for General Education, Institute for Comprehensive Education, Kagoshima University, 1-21-30 Korimoto, Kagoshima 890-0065, Japan
Yuhki Hamae
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
Keisuke Nakashima
Affiliation:
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan.
Ka-Yiu Shum
Affiliation:
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan.
Daniel Tafoya
Affiliation:
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, Sweden
Lucero Uscanga
Affiliation:
Departamento de Astronomía, Universidad de Guanajuato, A.P. 144, 36000 Guanajuato, Gto., Mexico
José F. Gómez
Affiliation:
Instituto de Astrofísica de Andaluca, CSIC, Glorieta de la Astronoma s/n, E-18008 Granada, Spain
Gabor Orosz
Affiliation:
Joint Institute for VLBI ERIC, Dwingeloo 7900, Netherlands
Ross A. Burns
Affiliation:
National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan RIKEN, Wako, Saitama 351-0198, Japan
*
email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We report new detections of SiO ν = 1 and ν = 2 J = 1 → 0 masers in the “water fountain” source IRAS 16552-3050, which was observed with the Nobeyama 45 m telescope from March 2021 to April 2023. Water fountains are evolved stars whose H2O maser spectra trace high-velocity outflows of >100 Km s−. This is the second known case of SiO masers in a water fountain, after their prototypical source, W 43A. The line-of-sight velocity of the SiO masers are blue-shifted by ∼25 km s−1 from the systemic velocity. This velocity offset imply that the SiO masers are associated with nozzle structure formed by a jet penetrating the circumstellar envelope, and that new gas blobs of the jet erupted recently. Thus, the SiO masers imply this star to be in a new evolutionary stage.

Keywords

masersstars: AGB and post-AGBstars: mass lossstars: windsoutfows
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. 359 - 361
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Gómez, J. F., Suárez, O., Rizzo, J. R., et al. 2017, MNRAS, 468, 2081 CrossRefGoogle Scholar
Imai, H., Uno, Y., Maeyama, D., et al. 2020, PASJ, 72, 58 CrossRefGoogle Scholar
Tafoya, D., Imai, H., Gómez, J. F., et al. 2020, ApJ (Letters) 890, L14 Google Scholar
Khouri, T., Vlemmings, W. H. T., Tafoya, D., et al. 2021, New Astron., 6, 275 Google Scholar
Nakashima, J., & Deguchi, S. 2003, PASJ, 55, 229 CrossRefGoogle Scholar
Imai, H., Nakashima, J., Diamond, P. J., Miyazaki, A., & Deguchi, S. 2005, ApJ (Letters) 622, L125 Google Scholar
Yoon, D.-H., Cho, S.-H., Kim, J., Yun, Y. J., & Park, Y.-S. 2014, AJ, 211, 15 Google Scholar