Purcell, C.R., Hoare, M.G., Cotton, W.D., Lumsden, S.L., Urquhart, J.S., Chandler, C., Churchwell, E.B., Diamond, P., Dougherty, S.M., Fender, R.P., and others. (2013) The coordinated radio and infrared survey for high-mass star formation. II. source catalog. Astrophysical Journal Supplement Series, 205 (1). p. 1. ISSN 0067-0049. (doi:10.1088/0067-0049/205/1/1) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:52202)
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| Official URL: http://www.dx.doi.org/10.1088/0067-0049/205/1/1 |
Abstract
The CORNISH project is the highest resolution radio continuum survey of the Galactic plane to date. It is the 5 GHz radio continuum part of a series of multi-wavelength surveys that focus on the northern GLIMPSE region (10° < l < 65°), observed by the Spitzer satellite in the mid-infrared. Observations with the Very Large Array in B and BnA configurations have yielded a 1farcs5 resolution Stokes I map with a root mean square noise level better than 0.4 mJy beam–1. Here we describe the data-processing methods and data characteristics, and present a new, uniform catalog of compact radio emission. This includes an implementation of automatic deconvolution that provides much more reliable imaging than standard CLEANing. A rigorous investigation of the noise characteristics and reliability of source detection has been carried out. We show that the survey is optimized to detect emission on size scales up to 14'' and for unresolved sources the catalog is more than 90% complete at a flux density of 3.9 mJy. We have detected 3062 sources above a 7? detection limit and present their ensemble properties. The catalog is highly reliable away from regions containing poorly sampled extended emission, which comprise less than 2% of the survey area. Imaging problems have been mitigated by down-weighting the shortest spacings and potential artifacts flagged via a rigorous manual inspection with reference to the Spitzer infrared data. We present images of the most common source types found: H II regions, planetary nebulae, and radio galaxies.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1088/0067-0049/205/1/1 |
| Uncontrolled keywords: | catalogs, Hii regions, radio continuum: general, radio continuum: ISM, surveys, techniques: image processing |
| Subjects: | Q Science > QB Astronomy > QB460 Astrophysics |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | James Urquhart |
| Date Deposited: | 24 Nov 2015 12:26 UTC |
| Last Modified: | 03 Sep 2021 14:00 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/52202 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Urquhart, J.S..
| Creator's ORCID: |
 https://orcid.org/0000-0002-1605-8050
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