Hostname: page-component-54dcc4c588-xh45t Total loading time: 0 Render date: 2025-10-10T20:22:45.518Z Has data issue: false hasContentIssue false
  • English
  • Français

The bursting variability of 6.7 GHz methanol maser of G33.641-0.228

Published online by Cambridge University Press:  16 July 2018

Y. Kojima ,
K. Fujisawa  and
K. Motogi
Y. Kojima
Affiliation:
Graduated School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida 1677-1, Yamaguchi, 753-8512 Japan
K. Fujisawa
Affiliation:
Graduated School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida 1677-1, Yamaguchi, 753-8512 Japan
K. Motogi
Affiliation:
Graduated School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida 1677-1, Yamaguchi, 753-8512 Japan
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.

From 2014 to 2015, we conducted a total of 469 days observation of the 6.7 GHz methanol maser in a star forming region G33.641-0.228, known to be a bursting maser source. As a result, eleven bursts were detected. On MJD 57364, the flux density grew by more than six times w.r.t the day before. Moreover, during the largest burst, the flux density repeatedly increased and decreased rapidly with time-scale as short as 0.24 day. Since these characteristics of the burst are similar to the solar burst, we speculate that the burst of the 6.7 GHz methanol maser in G33.641-0.228 might occur with a similar mechanism of the solar burst.

Keywords

masersstars : formation

References

Fujisawa, K., Sugiyama, K., & Aoki, N., 2012, PASJ, 64, 17Google Scholar
Fujisawa, K., Aoki, N., & Nagadomi, Y., 2014, PASJ, 66, 109CrossRefGoogle Scholar
Szymczak, M., Hrynek, G., & Kus, A. J., 2000, A&A, 143, 269Google Scholar