Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-08T08:08:01.945Z Has data issue: false hasContentIssue false
  • English
  • Français

Simultaneous observations of exited OH and methanol maser - coincidence and magnetic field

Published online by Cambridge University Press:  07 February 2024

Agnieszka Kobak Open the ORCID record for Agnieszka Kobak [Opens in a new window]
Agnieszka Kobak*
Affiliation:
Institute of Astronomy, Nicolaus Copernicus University in Torun.
*
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 present the first results of simultaneous observations of the 6.035 GHz exited OH and 6.7 GHz methanol masers toward a sample of 10 high-mass young stellar objects (HMYSOs), observed using eMERLIN in 2020 and 2022. Searching for the coincidence and avoidance of these two maser transitions, we estimate physical conditions around central protostars. We identify Zeeman-splittings of the OH emission and determine the strength of the magnetic field. Combining it with linear polarization, we derive the magnetic field structure in these high-mass star-forming regions.

Keywords

methanolexited OHmasermagnetic field
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. 182 - 185
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Baudry, A., Desmurs, J.F., Wilson, T.L., Cohen, R.J., 1997, A&A, 325, 255 Google Scholar
Bartkiewicz, A., Szymczak, M., Cohen, R.J., Richards, A.M.S., 2005, MNRAS, 361, 623–632 10.1111/j.1365-2966.2005.09203.xCrossRefGoogle Scholar
Bartkiewicz, A., Szymczak, M., van Langevelde, H.J., Richards, A.M.S., Pihlström, Y.M., 2009, A&A, 502, 155 Google Scholar
Cooper, H.D.B., Lumsden, S.L., Oudmaijer, R.D., Hoare, M.G., Clarke, A.J., Urquhart, J.S., Mottram, J.C., Moore, T.J.T., Davies, B., 2013, MNRAS, 430, 1125–1157 10.1093/mnras/sts681CrossRefGoogle Scholar
Cragg, D.M., Sobolev, A.M., Godfrey, P.D. 2002, MNRAS, 331, 521–536 10.1046/j.1365-8711.2002.05226.xCrossRefGoogle Scholar
De Buizer, J.M., Lim, W., Liu, M., Karnath, N., Radomski, J.T., 2021, ApJ, 923, 198 10.3847/1538-4357/ac2d25CrossRefGoogle Scholar
De Pree, C.G., Mehringer, D.M., Goss, W.M., 1997, ApJ, 482, 307 10.1086/304119CrossRefGoogle Scholar
Garay, G., Ramirez, S., Rodriguez, L.F., Curiel, S., Torrelles, J.M., 1996, ApJ, 459, 193 10.1086/176882CrossRefGoogle Scholar
Green, J.A., Richards, A.M.S., Vlemmings, W.H.T., Diamond, P., Cohen, R.J., 2007, MNRAS, 382, 770–778 10.1111/j.1365-2966.2007.12418.xCrossRefGoogle Scholar
Kobak, A., Bartkiewicz, A., Szymczak, M., Olech, M., Durjasz, M., Wolak, P., Chibueze, J.O., Hirota, T., Eislöffel, J., Stecklum, B., Sobolev, A., Bayandina, O., Orosz, G., Burns, R.A., Kim, K.T. and van den Heever, S.P, 2023, A&A, 671, A135 Google Scholar
Krumholz, M.R., Federrath, C., 2019, Frontiers in Astronomy and Space Sciences, 6, 7 10.3389/fspas.2019.00007CrossRefGoogle Scholar
Reid, M., Menten, K.M., Brunthaler, A., 2019, ApJ, 885, 131 10.3847/1538-4357/ab4a11CrossRefGoogle Scholar
Miyawaki, R., Hayashi, M., Hasegawa, T., 2022, PASJ, 74, 705–737 10.1093/pasj/psac030CrossRefGoogle Scholar
Szymczak, M., Kus, A.J., Hrynek, G., Kepa, A., Pazderski, E., 2002, A&A, 392, 277–286 Google Scholar
Szymczak, M., Olech, M., Sarniak, R., Wolak, P., Bartkiewicz, A., 2018, MNRAS, 474, 219–253 10.1093/mnras/stx2693CrossRefGoogle Scholar
Hu, B., Menten, K.M., Wu, Y., Bartkiewicz, A., Rygl, K., Reid, M.J., Urquhart, J.S., Zheng, X., 2016, ApJ, 833, 18 10.3847/0004-637X/833/1/18CrossRefGoogle Scholar
Yang, K., Chen, X., Shen, Z.Q., Li, X.Q., Wang, J.Z., Jiang, D.R., Li, J., Dong, J., Wu, Y.J., Qiao, H.H., 2019, ApJS, 241, 39 Google Scholar