J/MNRAS/520/1073 CORNISH-South Survey and Catalogue (Irabor+, 2023)
The coordinated radio and infrared survey for high-mass star formation.
V. The CORNISH-South survey and catalogue.
Irabor T., Hoare M.G., Burton M., Cotton W.D., Diamond P., Dougherty S.,
Ellingsen S.P., Fender R., Fuller G.A., Garrington S., Goldsmith P.F.,
Green J., Gunn A.G., Jackson J., Kurtz S., Lumsden S.L., Marti J.,
McDonald I., Molinari S., Moore T.J., Mutale M., Muxlow T., O'Brien T.,
Oudmaijer R.D., Paladini R., Pandian J.D., Paredes J.M., Richards A.M.S.,
Sanchez-Monge A., Spencer R., Thompson M.A., Umana G., Urquhart J.S.,
Wieringa M., Zijlstra A.
<Mon. Not. R. Astron. Soc. 520, 1073-1091 (2023)>
=2023MNRAS.520.1073I 2023MNRAS.520.1073I (SIMBAD/NED BibCode)
ADC_Keywords: H II regions ; Fundamental catalog ; Radio continuum
Keywords: techniques: image processing - catalogues - surveys - H II regions -
radio continuum: ISM
Abstract:
We present the first high spatial resolution radio continuum survey of
the southern Galactic plane. The CORNISH project has mapped the region
defined by 295°<l<350°; |b|<1° at 5.5-GHz, with a
resolution of 2.5" (FWHM). As with the CORNISH-North survey, this is
designed to primarily provide matching radio data to the Spitzer
GLIMPSE survey region. The CORNISH-South survey achieved a root mean
square noise level of ∼0.11mJy/beam, using the 6A configuration of the
Australia Telescope Compact Array (ATCA). In this paper, we discuss
the observations, data processing and measurements of the source
properties. Above a 7σ detection limit, 4701 sources were
detected, and their ensemble properties show similar distributions
with their northern counterparts. The catalogue is highly reliable and
is complete to 90 per cent at a flux density level of 1.1mJy. We
developed a new way of measuring the integrated flux densities and
angular sizes of non-Gaussian sources. The catalogue primarily
provides positions, flux density measurements and angular sizes. All
sources with IR counterparts at 8µm have been visually classified,
utilizing additional imaging data from optical, near-IR, mid-IR,
far-IR and sub-millimetre galactic plane surveys. This has resulted in
the detection of 524 HII regions of which 255 are ultra-compact HII
regions, 287 planetary nebulae, 79 radio stars and 6 massive young
stellar objects. The rest of the sources are likely to be
extra-galactic. These data are particularly important in the
characterization and population studies of compact ionized sources
such as UCHII regions and PNe towards the Galactic mid-plane.
Description:
Catalogue is based on the CORNISH-South survey at 5.5GHz.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 341 4701 5.5GHz CORNISH-South catalogue
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See also:
J/ApJS/205/1 : CORNISH project II. Source catalog (Purcell+, 2013)
J/A+A/615/A103 : CORNISH project III. UCHII region catalog (Kalcheva+, 2018)
J/MNRAS/480/2423 : CORNISH project IV. Radio-selected galactic PN
(Irabor+, 2018)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Name CORNISH Source name
18- 19 I2 h RAh Right Ascension (J2000)
21- 22 I2 min RAm Right Ascension (J2000)
24- 27 F4.1 s RAs Right Ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000)
33- 34 I2 arcmin DEm Declination (J2000)
36- 39 F4.1 arcsec DEs Declination (J2000)
41- 55 F15.9 arcsec e_RAs ?=-3600 error in Right Ascension (J2000)
57- 71 F15.9 arcsec e_DEs ?=-3600 error in Declination (J2000)
73- 83 F11.7 deg RAdeg Right Ascension (J2000)
85- 96 F12.8 deg DEdeg Declination (J2000)
98-108 F11.7 deg GLON Galactic longitude
110-121 F12.9 deg GLAT Galactic latitude
123-136 F14.9 mJy/beam FPeak Peak flux at 5GHz
138-152 F15.9 mJy/beam e_FPeak ?=-1000 Error on the peak flux at 5GHz
154-168 F15.9 mJy S Flux density at 5GHz
170-184 F15.9 mJy e_S ?=-1000 Error on the flux density at 5GHz
186-197 F12.9 arcsec Size Angular size
199-209 F11.9 arcsec e_Size Error on the angular size
211-222 F12.9 mJy/beam maj Gaussian FWHM major axis
224-235 F12.9 mJy/beam e_maj ?=-1 Error on Gaussian FWHM major axis
237-247 F11.9 mJy/beam min Gaussian FWHM minor axis and error
249-260 F12.9 mJy/beam e_min ?=-1 Error on Gaussian FWHM minor axis
262-274 F13.9 deg PA [] Positional angle (E of N) of
elliptical Gaussian
276-288 F13.9 deg e_PA ?=-1 Error on positional angle
290-300 F11.9 mJy/beam rms Local rms noise level
302-314 F13.9 --- Sigma Signal to noise ratio of the source given
by Peak flux divided by rms
316 A1 --- Mtype [PG] tells if the source is Gaussian
fitted (G) or non-Gaussian, in which
case a polygon (P)
318-341 A24 --- SourceType Classification of the source e.g
HII region
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Acknowledgements:
Tonye Irabor, janesoki(at)yahoo.com
References:
Hoare et al., Paper I 2012PASP..124..939H 2012PASP..124..939H
Purcell et al., Paper II 2013ApJS..205....1P 2013ApJS..205....1P, Cat. J/ApJS/205/1
Kalcheva et al., Paper III 2018A&A...615A.103K 2018A&A...615A.103K, Cat. J/A+A/615/A103
Irabor et al., Paper IV 2018MNRAS.480.2423I 2018MNRAS.480.2423I, Cat. J/MNRAS/480/2423
(End) Patricia Vannier [CDS] 30-Jan-2023