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Linear polarisation of Class i methanol masers in massive star formation regions

Kang, Ji-hyun (author)
Korea Astronomy and Space Science Institute
Byun, Do Young (author)
Korea Astronomy and Space Science Institute
Kim, Kee-Tae (author)
Korea Astronomy and Space Science Institute
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Lyo, A. (author)
Korea Astronomy and Space Science Institute
Kim, Jongsoo (author)
Korea Astronomy and Space Science Institute
Kim, Mi Kyoung (author)
Korea Astronomy and Space Science Institute
Vlemmings, Wouter, 1974 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Lankhaar, Boy, 1991 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Surcis, G. (author)
Istituto nazionale di astrofisica (INAF)
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 (creator_code:org_t)
2017
2017
English.
In: Proceedings of the International Astronomical Union. - 1743-9213 .- 1743-9221. ; 13:S336, s. 243-246
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We present the results of the linear polarisation observations of methanol masers at 44 and 95 GHz towards 39 massive star forming regions (Kang et al. 2016). These two lines are observed simultaneously with the 21-m Korean VLBI Network (KVN) telescope in single dish mode. About 60% of the observed showed fractional polarisation of a few percents at least at one of the two transition lines. We note that the linear polarisation of the 44 GHz methanol maser is first detected in this study including single dish and interferometer observations. We find the polarisation properties of these two lines are similar as expected, since they trace similar regions. As a follow-up study, we have carried out the VLBI polarisation observations toward some 44 GHz maser targets using the KVN telescope. We present preliminary VLBI polarisation results of G10.34-0.14, which show consistent polarisation properties in multiple epoch observations.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

Keyword

masers
polarisation
stars: formation
magnetic fields

Publication and Content Type

art (subject category)
ref (subject category)

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