OH masers associated with bipolar outflow in ON1
Multi-Element Radio-Linked Interferometer Network polarization measurements of the OH 18-cm masers in ON1 are presented. OH maser emission is detected in all four ground state lines. The bulk of the masers lie in an elongated distribution covering 2 arcsec at position angle 130°, near the southern e...
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| Main Authors: | , , , , , |
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| Format: | Journal |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33748684602&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61629 |
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| Institution: | Chiang Mai University |
| Summary: | Multi-Element Radio-Linked Interferometer Network polarization measurements of the OH 18-cm masers in ON1 are presented. OH maser emission is detected in all four ground state lines. The bulk of the masers lie in an elongated distribution covering 2 arcsec at position angle 130°, near the southern edge of the ultracompact H II region. The maser distribution is orthogonal to the bipolar outflow seen in HCO + at position angle (PA) 44°. An isolated group of 1720-MHz masers is also seen 6 arcsec to the east. The magnetic field deduced from Zeeman splitting of the OH maser lines shows a large-scale order, with field values ranging from -0.4 to -4.6 mG. © 2006 RAS. |
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