Universität zu Köln

Nguyen, H., Rugel, M. R., Murugeshan, C., Menten, K. M., Brunthaler, A., Urquhart, J. S., Dokara, R., Dzib, S. A., Gong, Y., Khan, S., Medina, S-N X., Ortiz-Leon, G. N., Reich, W., Wyrowski, F., Yang, A. Y., Beuther, H., Cotton, W. D. and Pandian, J. D. (2022). A global view on star formation: The GLOSTAR Galactic plane survey V. 6.7 GHz methanol maser catalogue. Astron. Astrophys., 666. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

Class II methanol (CH3OH) masers are amongst the clearest signposts of recent high-mass star formation (HMSF). A complete catalogue outlines the distribution of star formation in the Galaxy, the number of young star-forming cores, and the physical conditions of their environment, made possible by the Global View on Star Formation (GLOSTAR) survey. This blind survey of the radio regime of 4-8 GHz maps the Galactic mid-plane in the radio continuum, 6.7 GHz methanol line, the 4.8 GHz formaldehyde line, and several radio recombination lines. We present an analysis of the observations of the 6.7 GHz CH3OH maser transition using data from the D-configuration of the Very Large Array (VLA). We analysed data covering Galactic longitudes from -2 degrees < l < 60 degrees and Galactic latitudes of vertical bar b vertical bar < 1 degrees. We detected a total of 554 methanol masers, out of which 84 are new, and we catalogued their positions, velocity components, and integrated fluxes. With a typical noise level of similar to 18 mJy beam(-1), this is the most sensitive unbiased methanol survey for methanol masers to date. We also searched for dust continuum and radio continuum associations, finding that 97% of the sources are associated with dust and 12% are associated with radio continuum emission.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Nguyen, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rugel, M. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Murugeshan, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Menten, K. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Brunthaler, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Urquhart, J. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dokara, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dzib, S. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gong, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Khan, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Medina, S-N X. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ortiz-Leon, G. N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Reich, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wyrowski, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yang, A. Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beuther, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cotton, W. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pandian, J. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-691505
DOI:	10.1051/0004-6361/202244115
Journal or Publication Title:	Astron. Astrophys.
Volume:	666
Date:	2022
Publisher:	EDP SCIENCES S A
Place of Publication:	LES ULIS CEDEX A
ISSN:	1432-0746
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language H II REGIONS; MOLECULAR CLOUDS; RADIO-CONTINUUM; GENERAL CATALOG; DATA RELEASE; DISTANCES; ATLASGAL; SEARCH; IRAS; ABSORPTION Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/69150