ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

Expansion of methanol maser rings

Date Issued
2018
Author(s)
Bartkiewicz, Anna
•
•
Szymczak, Marian
•
•
van Langevelde, Huib
DOI
Abstract
Ring-like sources of 6.7 GHz methanol maser emission were discovered a decade ago with the European VLBI Network. In the past years we have been incessantly working to understand the nature of these rings. In general, the methanol rings do not coincide with H II regions nor they show 22 GHz water maser emission. Here, we present a proper motion study over a time baseline up to 10.5 years for the first sub-sample of methanol maser rings. Our findings suggest that in three targets G23.207-00.377, G23.389+00.185, and G23.657-00.127, such rings form in outflows or even in winds close to the central sources, and the masers trace slow proper motions of a few km s-1 typically.
Coverage
Astrophysical Masers: Unlocking the Mysteries of the Universe
All editors
Tarchi, Andrea; Reid, Mark J.; Castangia, Paola
Series
Volume
vol. 13, 336
Start page
211
Conferenece
Astrophysical Masers: Unlocking the Mysteries of the Universe
Conferenece place
Cagliari, Italy
Conferenece date
4-8 September, 2017
Uri
Url
Issn Identifier
1743-9213
Ads BibCode
2018IAUS..336..211B
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

Bartkiewictz_2018.pdf

Description
PDF editoriale
Size

192.52 KB

Format

Adobe PDF

Checksum (MD5)

3716a7c2baa815a0f8fb88fe51421d15