J/MNRAS/454/902 SCORPIO 1 catalogue of compact radio sources (Umana+, 2015)
SCORPIO: a deep survey of radio emission from the stellar life-cycle.
Umana G., Trigilio C., Franzen T.M.O., Norris R.P., Leto P.,
Ingallinera A., Buemi C.S., Agliozzo C., Cavallaro F., Cerrigone L.
<Mon. Not. R. Astron. Soc., 454, 902-912 (2015)>
=2015MNRAS.454..902U 2015MNRAS.454..902U (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Radio sources
Keywords: techniques: interferometric - stars: evolution - stars: formation -
Galaxy: stellar content - radio continuum: ISM -
radio continuum: stars
Abstract:
Radio emission has been detected in a broad variety of stellar objects
from all stages of stellar evolution. However, most of our knowledge
originates from targeted observations of small samples, which are
strongly biased to sources which are peculiar at other wavelengths. In
order to tackle this problem we have conducted a deep 1.4GHz survey by
using the Australian Telescope Compact Array, with a net bandwidth of
1.7GHz (1.4-3.1GHz), following the same observing setup as that used
for the Australia Telescope Large Area Survey project, this time
choosing a region more appropriate for stellar work. In this paper,
the Stellar Continuum Originating from Radio Physics In Ourgalaxy
(SCORPIO) project is presented as well as results from the pilot
experiment. The achieved rms is 30µJy and the angular resolution
∼10arcsec. 614 point-like sources have been extracted just from the
pilot field. Only 34 of them are classified in SIMBAD or the NASA/IPAC
Extragalactic Database. About 80 percent of the extracted sources are
reported in one of the inspected catalogues and 50 percent of them
appears to belong to a reddened stellar/Galactic population. However,
the evaluation of extragalactic contaminants is very difficult without
further investigations. Interesting results have been obtained for
extended radio sources that fall in the SCORPIO field. Many
roundish-like structures (indicated as bubbles in the following) have
been found, some of which are classified at other wavelengths.
However, for all of these sources, our project has provided us with
images of unprecedented sensitivity and angular resolution.
Description:
The SCORPIO1 Catalogue contains all the point-like sources detected in
the first data release. The field is in the Galactic Plane, at
-0.5<b<1.83 and 343<l<344. The number of sources is 614, the maximum
flux density is 384mJy and the minimum is 0.160mJy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
scorpio1.dat 88 614 Scorpio 1, point source catalogue of the pilot
experiment (table5 in the paper)
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Byte-by-byte Description of file: scorpio1.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- --- [SCORPIO1_]
10- 13 A4 --- Scorpio1 Scorpio1 designation (NNNa)
15- 22 F8.4 deg GLON Galactic longitude
24- 30 F7.4 deg GLAT Galactic latitude
33- 34 I2 h RAh Right ascension (J2000)
36- 37 I2 min RAm Right ascension (J2000)
39- 43 F5.2 s RAs Right ascension (J2000)
45 A1 --- DE- Declination sign (J2000)
46- 47 I2 deg DEd Declination (J2000)
49- 50 I2 arcmin DEm Declination (J2000)
52- 55 F4.1 arcsec DEs Declination (J2000)
57- 62 F6.2 mJy S Integrated flux density at 20cm
65- 69 F5.2 mJy e_S Error on S (1)
73- 76 F4.1 beam Area Area of the source in instrumental beams
79- 88 A10 --- Matching Codes for match with source in other
catalogue (2)
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Note (1): estimated uncertainty (ΔS), defined as
SQRT(rms2+(S*δW/W)2+(aS)2),
where rms is the local rms, W and ΔW are the beam width and its
associated error (ΔW=rms*W/P, P is the peak intensity) and a is the
relative error of the flux density of the calibrator. We assumed a=0.03.
Note (2): Codes for matching as follows:
N = NOMAD, Cat. I/297
M = 2MASS, Cat. VII/233
G = GLIMPSE, Cat. II/293
W = WISE, Cat. II/311
X = MSX, V/114 (MSX6C)
A = AKARI, Cat. II/297 (AKARI/IRC)
H = HIGAL, 2010PASP..122..314M 2010PASP..122..314M
I = IRAS, Cat. II/125
a = Atlasgal, Cat. J/A+A/549/A45
m = MGPS-2, Cat. VIII/82
w = WBH05, Cat. J/AJ/130/586
R = RMS, Cat. J/A+A/461/11
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Acknowledgements:
Grazia Umana, Grazia.Umana(at)oact.inaf.it
(End) Patricia Vannier [CDS] 02-Jun-2016