THE COORDINATED RADIO AND INFRARED SURVEY FOR HIGH-MASS STAR FORMATION. II. SOURCE CATALOG

被引:129
作者
Purcell, C. R. [1 ,2 ,3 ]
Hoare, M. G. [1 ]
Cotton, W. D. [4 ]
Lumsden, S. L. [1 ]
Urquhart, J. S. [1 ,5 ,6 ]
Chandler, C. [7 ]
Churchwell, E. B. [8 ]
Diamond, P. [2 ,5 ]
Dougherty, S. M. [9 ]
Fender, R. P. [10 ]
Fuller, G. [2 ]
Garrington, S. T. [2 ]
Gledhill, T. M. [11 ]
Goldsmith, P. F. [12 ]
Hindson, L. [5 ,11 ]
Jackson, J. M. [13 ]
Kurtz, S. E. [14 ]
Marti, J. [15 ]
Moore, T. J. T. [16 ]
Mundy, L. G. [17 ]
Muxlow, T. W. B. [2 ]
Oudmaijer, R. D. [1 ]
Pandian, J. D. [18 ]
Paredes, J. M. [19 ,20 ]
Shepherd, D. S. [7 ,21 ]
Smethurst, S. [2 ]
Spencer, R. E. [2 ]
Thompson, M. A. [11 ]
Umana, G. [22 ]
Zijlstra, A. A. [2 ]
机构
[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England
[3] Univ Sydney, Sydney Inst Astron SiFA, Sydney, NSW 2006, Australia
[4] Natl Radio Astron Observ, Charlottesville, VA 22903 USA
[5] CSIRO Astron & Space Sci, Epping, NSW 1710, Australia
[6] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[7] Natl Radio Astron Observ, Array Operat Ctr, Socorro, NM 87801 USA
[8] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA
[9] Natl Res Council Canada, Herzberg Inst Astrophys, Domin Radio Astrophys Observ, Penticton, BC V2A 6J9, Canada
[10] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[11] Univ Hertfordshire, Sci & Technol Res Inst, Hatfield AL10 9AB, Herts, England
[12] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[13] Boston Univ, Dept Astron, Boston, MA 02215 USA
[14] Univ Nacl Autonoma Mexico, Ctr Radioastron & Astrofis, Morelia 58090, Michoacan, Mexico
[15] Univ Jaen, Dept Fis, EPSJ, E-23071 Jaen, Spain
[16] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England
[17] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[18] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[19] Univ Barcelona UB IEEC, Dept Astron & Meteorol, E-08028 Barcelona, Spain
[20] Univ Barcelona UB IEEC, ICC, E-08028 Barcelona, Spain
[21] Sq Kilometre Array South Africa, ZA-7405 Cape Town, Western Cape, South Africa
[22] INAF Osservatorio Astrofis Catania, I-95123 Catania, Italy
关键词
catalogs; H II regions; radio continuum: general; radio continuum: ISM; surveys; techniques: image processing; GALACTIC PLANE; RMS SURVEY; CIRCULAR-POLARIZATION; FORMING REGIONS; HII-REGIONS; ULTRACOMPACT; SPITZER; SAMPLE; ARRAY; YSOS;
D O I
10.1088/0067-0049/205/1/1
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 degrees < l < 65 degrees.), observed by the Spitzer satellite in the mid-infrared. Observations with the Very Large Array in B and BnA configurations have yielded a 1 ''.5 resolution Stokes I map with a root mean square noise level better than 0.4mJy 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 7s 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. The CORNISH data and catalog are available online at http://cornish.leeds.ac.uk.
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