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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]
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Abstract

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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
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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