6.7 GHz CH_3OH masers polarization in massive star-forming regions: the Flux-Limited Sample
Date Issued
2023
Author(s)
•
Vlemmings, Wouter
•
van Langevelde, Huib Jan
•
Hutawarakorn Kramer, Busaba
•
Bartkiewicz, Anna
Abstract
The formation process of high-mass stars (M > 8Msun) is still unclear; this is mainly due to their
fast evolution and large distances that make difficult to observe them in details. The observational
and theoretical efforts made in the last decades have shown that a common and essential component
in the formation of high-mass stars is the presence of molecular outflows during the protostellar
phase, similarly to what is observed during the formation of low-mass stars. Theoretically, it has
been convincingly demonstrated that the magnetic field plays an important role in launching and
shaping molecular outflows in massive young stellar objects (YSOs). Therefore, providing new
observational measurements of magnetic fields close (10s-100s au) to massive YSOs is of great
importance. More than 10 years ago we started a large EVN campaign to measure the magnetic
field orientation and strength toward a sample of 30 massive star-forming regions, called the
“Flux-Limited sample”, by observing the polarized emission of 6.7 GHz CH3OH masers. Here,
we present a summary of the final statistics of the Flux-Limited sample, extensively reported in
[1], which are focused on the relative orientation of the outflows with the magnetic fields and on
the polarized characteristics of 6.7 GHz CH3OH masers.
Coverage
15th European VLBI Network Mini-Symposium and Users' Meeting
Series
Volume
PoS(EVN2022)
Start page
1
Conferenece
15th European VLBI Network Mini-Symposium and Users' Meeting
Conferenece place
University College Cork, Ireland
Conferenece date
July 11-15, 2022
Issn Identifier
1824-8039
Ads BibCode
2023elvb.confE..35S
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
EVN2022_035.pdf
Size
1.01 MB
Format
Adobe PDF
Checksum (MD5)
a176102b866e62a291e9891bbbda71f4