Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-25T19:43:11.894Z Has data issue: false hasContentIssue false
  • English
  • Français

High resolution VLBI observations of 6.7GHz periodic methanol masers

Published online by Cambridge University Press:  07 February 2024

Mateusz Olech Open the ORCID record for Mateusz Olech [Opens in a new window]
Mateusz Olech*
Affiliation:
Space Radio-Diagnostic Research Center, Faculty of Geoengineering, University of Warmia and Mazury ul. Oczapowskiego 2, 10-719 Olsztyn, Poland.
*
email: mateusz.olech@uwm.edu.pl
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.

In the last 20 years a small group of 6.7GHz methanol maser sources displaying periodic variability have been identified. This variability is thought to reflect local processes linked to star formation. A number of models have been proposed e.g. colliding wind binary, protostellar pulsation, accretion on binary system. Recent studies of known sources as well as non-periodic flaring masers suggest an episodic accretion as a driving mechanism. We present the results of VLBI observation program aimed at studying known periodic methanol maser sources. High resolution maps of emission, source morphology and evolution in time will be discussed. Those results will help us fully understand the nature of maser periodicity in star forming regions.

Keywords

masersstars: formationISM: cloudsradio lines: ISM
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. 186 - 188
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Araya, E. D., Hofner, P., Goss, W. M., et al. 2010, ApJ (Letters), 717, L133 Google Scholar
Goedhart, S., Gaylard, M. J., et al. 2004, MNRAS, 355, 553 10.1111/j.1365-2966.2004.08340.xCrossRefGoogle Scholar
Inayoshi, K., Sugiyama, K., Hosokawa, T., et al. 2013, ApJ (Letters), 769, L20 Google Scholar
Morgan, J., van der Walt., et al. 2021, MNRAS, 507, 113810.1093/mnras/stab2185CrossRefGoogle Scholar
Olech, M., Durjasz, M., et al. 2022, A&A, 661, A114 Google Scholar
Parfenov, S. Y. & Sobolev, A. M., 2014, MNRAS, 444, 620 10.1093/mnras/stu1481CrossRefGoogle Scholar
Tanabe, Y., Yonekura, Y., & MacLeod, G. C., 2023, PASJ, 75, 351 10.1093/pasj/psad002CrossRefGoogle Scholar
van der Walt, D. J., Goedhar, S., & Gaylard, M. J., 2009, MNRAS, 398, 961 10.1111/j.1365-2966.2009.15147.xCrossRefGoogle Scholar