Linear polarisation of Class i methanol masers in massive star formation regions
Artikel i vetenskaplig tidskrift, 2017

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.

stars: formation

masers

magnetic fields

polarisation

Författare

Ji-hyun Kang

Korea Astronomy and Space Science Institute

Do Young Byun

Korea Astronomy and Space Science Institute

Kee-Tae Kim

Korea Astronomy and Space Science Institute

A. Lyo

Korea Astronomy and Space Science Institute

Jongsoo Kim

Korea Astronomy and Space Science Institute

Mi Kyoung Kim

Korea Astronomy and Space Science Institute

Wouter Vlemmings

Galaktisk astrofysik

Boy Lankhaar

Galaktisk astrofysik

G. Surcis

Osservatorio Astronomico di Cagliari

Proceedings of the International Astronomical Union

1743-9213 (ISSN) 1743-9221 (eISSN)

Vol. 13 S336 243-246

Ämneskategorier

Astronomi, astrofysik och kosmologi

Annan fysik

Fusion, plasma och rymdfysik

Infrastruktur

Onsala rymdobservatorium

DOI

10.1017/S1743921317010195

Mer information

Senast uppdaterat

2019-11-26