High-resolution observations of 6.7-GHz methanol masers with the Long Baseline Array
| dc.contributor.author | Dodson, R. | |
| dc.contributor.author | Ojha, R. | |
| dc.contributor.author | Ellingsen, S. P. | |
| dc.date.accessioned | 2020-04-15T13:15:50Z | |
| dc.date.available | 2020-04-15T13:15:50Z | |
| dc.date.issued | 2004-07-01 | |
| dc.description.abstract | We have used the Australian Long Baseline Array (LBA) to produce milliarcsecond images of five sites of methanol (CH3OH) maser emission at 6.7 GHz. These are all sites that have linear morphologies at arcsecond resolutions, which have been hypothesized to be due to the masers forming in edge-on circumstellar discs. We find that a simple disc model cannot explain the observations. We discuss various alternatives, and suggest a new model that explains how linear velocity gradients can be produced in methanol masers that arise in planar shocks propagating nearly perpendicular to the line of sight. | en_US |
| dc.description.sponsorship | This research has made use of NASA's Astrophysics Data System Abstract Service and the Simbad data base, operated at CDS. The LBA is operated as a National Facility, and managed by CSIRO and the University of Tasmania. RD and SPE were funded by ARC postdoctoral awards. We wish to thank Dr P. Edwards for his assistance. | en_US |
| dc.description.uri | https://academic.oup.com/mnras/article/351/3/779/1051184 | en_US |
| dc.format.extent | 12 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2cr0g-scw0 | |
| dc.identifier.citation | R. Dodson, R. Ojha, S. P. Ellingsen, High-resolution observations of 6.7-GHz methanol masers with the Long Baseline Array, Monthly Notices of the Royal Astronomical Society, Volume 351, Issue 3, July 2004, Pages 779–790, https://doi.org/10.1111/j.1365-2966.2004.07844.x | en_US |
| dc.identifier.uri | https://doi.org/10.1111/j.1365-2966.2004.07844.x | |
| dc.identifier.uri | http://hdl.handle.net/11603/18048 | |
| dc.identifier.uri | http://simbad.u-strasbg.fr/simbad/sim-ref?querymethod=bib&simbo=on&submit=submit+bibcode&bibcode=2004MNRAS.351..779D | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Oxford University Press | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2004 2020 Oxford University Press Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |
| dc.title | High-resolution observations of 6.7-GHz methanol masers with the Long Baseline Array | en_US |
| dc.type | Text | en_US |