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Intensity monitor of water maser emission associated with massive YSOs

Published online by Cambridge University Press:  07 February 2024

Kazuyoshi Sunada*
Affiliation:
National Astronomical Observatory of Japan, Oshu-shi, Iwate 023-0861, Japan.
Tomoya Hirota
Affiliation:
National Astronomical Observatory of Japan, Oshu-shi, Iwate 023-0861, Japan.
Mikyoung Kim
Affiliation:
Otsuma Women’s University,12 Sanban-cho,Chiyoda-ku,Tokyo 102-8357, Japan
Ross Burns
Affiliation:
RIKEN Cluster for Pioneering Research, Wako-shi, Saitama, 351-0198, Japan
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Abstract

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We are carrying out the intensity monitoring of the water maser emission associated with massive young stellar objects (YSOs) using the VLBI Exploration of Radio Astrometry (VERA) antennas. We are currently monitoring 108 sources. During our long monitoring period, we could find flares on several YSOs. As an example, we show the results from IRAS 16293–2422 and NGC2071 IRS1 here. We also show the results of monitoring of the water maser emission from G36.115+0.552, which the methanol maser flare was reported. We observed it as often as possible, usually once a day.

Type
Poster Paper
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Tanabe, Y. and Yonekura, Y., 2022, Atel, #5680Google Scholar