Skip to main content Accessibility help
×
Home
Hostname: page-component-747cfc64b6-xl4lj Total loading time: 0.142 Render date: 2021-06-15T17:35:39.371Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true }

G23.657−0.127, what can we learn from a perfect methanol maser source?

Published online by Cambridge University Press:  01 March 2007

Anna Bartkiewicz
Affiliation:
Centre for Astronomy, Nicolaus Copernicus University, Gagarina 11, Torun, Poland email: annan@astro.uni.torun.pl
Huib Jan van Langevelde
Affiliation:
Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo, email: langevelde@jive.nl Sterrewacht Leiden, Postbus 9513, 2300 RA Leiden, The Netherlands
Marian Szymczak
Affiliation:
Centre for Astronomy, Nicolaus Copernicus University, Gagarina 11, Torun, Poland email: annan@astro.uni.torun.pl
Andreas Brunthaler
Affiliation:
Max Planck Institute fur Radioastronomie, Auf dem Hugel 69, 53121 Bonn, Germany email: brunthal@mpifr-bonn.mpg.de
Rights & Permissions[Opens in a new window]

Abstract

In the course of following up compact methanol masers at 6.7 GHz which were found in the Torun blind survey (Szymczak et al. 2002), we discovered a ring structure in the source G23.657−00.127. This source provides interesting insights into whether methanol masers arise in rotating disks around massive stars, in their outflows, or behind shocks. By monitoring the 12.2 GHz masers, which fortunately follow the same structure, we hope to resolve the kinematics of the ring. Moreover, the symmetry of the source points to the existence of a central source. Early results on the nature of this source indicate the existence of a hyper–compact H II region.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

References

Bartkiewicz, A., Szymczak, M. & van Langevelde, H. J. 2005, A&A 442, L61Google Scholar
Sobolev, A. M., Cragg, D. M. & Godfrey, P. D. 1997, MNRAS 288, L39CrossRefGoogle Scholar
Szymczak, M., Kus, A. J., Hrynek, G., Kepa, A. & Pazderski, E. 2002, A&A 392, 277Google Scholar
Walsh, A. J., Burton, M. G., Hyland, A. R. & Robinson, G. 1999, MNRAS 309, 905CrossRefGoogle Scholar
You have Access

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

G23.657−0.127, what can we learn from a perfect methanol maser source?
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

G23.657−0.127, what can we learn from a perfect methanol maser source?
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

G23.657−0.127, what can we learn from a perfect methanol maser source?
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *