J/MNRAS/490/5063 Extended sources in SCORPIO at 2.1GHz (Ingallinera+, 2019)
Study of the galactic radio sources in the SCORPIO survey resolved by ATCA
at 2.1 GHz.
Ingallinera A., Umana G., Trigilio C., Norris R., Franzen T.M.O.,
Cavallaro F., Leto P., Buemi C., Schilliro F., Bufano F., Riggi S.,
Loru S., Agliozzo C.
<Mon. Not. R. Astron. Soc. 490, 5063 (2019)>
=2019MNRAS.490.5063I 2019MNRAS.490.5063I (SIMBAD/NED BibCode)
ADC_Keywords: Planetary nebulae ; H II regions ; Radio continuum ;
Supernova remnants
Keywords: techniques: interferometric - stars: evolution - radio continuum: ISM
Abstract:
We present a catalogue of a large sample of extended radio sources in
the Stellar Continuum Originating from Radio Physics In Ourgalaxy
(SCORPIO) field, observed and resolved by the Australia Telescope
Compact Array. SCORPIO, a pathfinder project for addressing the early
operations of the Australia SKA Pathfinder, is a survey of ∼5 square
degrees between 1.4 and 3.1GHz, centred at l=343.5°, b=0.75°,
and with an angular resolution of about 10 arcsec. It is aimed at
understanding the scientific and technical challenges to be faced by
future Galactic surveys. With a mean sensitivity around 100uJy/beam
and the possibility to recover angular scales at least up to
4 arcmin, we extracted 99 extended sources, 35 of them detected for
the first time. Among the 64 known sources 55 had at least a tentative
classification in literature. Studying the radio morphology and
comparing the radio emission with infrared we propose as candidates
six new HII regions, two new planetary nebulae, two new luminous
blue variable or Wolf-Rayet stars, and three new supernova remnants.
This study provides an overview of the potentiality of future radio
surveys in terms of Galactic source extraction and characterization
and a discussion on the difficulty to reduce and analyse
interferometric data on the Galactic plane.
Description:
This catalogue contains coordinates, classification and flux densities
(where available) for all the extended sources extracted from the ATCA
observations at 2.1GHz of the SCORPIO field (5 square degrees centred
at -0.5<b<1.83 and 343<l<344). The catalogue contains 99 sources.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
scorpioe.dat 98 99 Catalogue of the sources
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See also:
J/MNRAS/454/902 : SCORPIO 1 catalogue of compact radio sources (Umana+, 2015)
Byte-by-byte Description of file: scorpioe.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name Catalogue name (SCO JHHMMSS+DDMMSS)
20- 21 I2 h RAh Right Ascension J2000 (hours)
23- 24 I2 min RAm Right Ascension J2000 (minutes)
26- 27 I2 s RAs Right Ascension J2000 (seconds)
29 A1 --- DE- Declination J2000 (sign)
30- 31 I2 deg DEd Declination J2000 (degrees)
33- 34 I2 arcmin DEm Declination J2000 (minutes)
36- 37 I2 arcsec DEs Declination J2000 (seconds)
39- 58 A20 --- OName Other designation
60 A1 --- Shape [S/D] Discrete (S) or diffuse (D) sources
62- 65 F4.1 arcmin Dim Mean angular dimension
67- 72 F6.1 mJy S ? Flux density at 2.1GHz
74- 78 F5.1 mJy e_S ? Flux density at 2.1GHz error
80- 83 A4 --- ClassLit Literature classification (1)
85- 98 A14 --- Class Classification proposed in this work (2)
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Note (1): Literature classification as follows:
Hii = H II region
PN = Planetary Nebula
SNR = Supernova Remnant
? = Candidate
Note (2): Proposed classification as follows:
Hii = H II region
PN = Planetary nebula
SNR = Supernova remnant
WR/LBV = Evolved massive star (likely WR star or LBV star)
GDE = Galactic diffuse emission
Extragalactic = Extragalactic source (radio galaxy)
? = Candidate when appended to another classifier, unclassified otherwise
[?] = This source may be an imaging artifact rather than a real source
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Acknowledgements:
Adriano Ingallinera, adriano.ingallinera(at)inaf.it
(End) Adriano Ingallinera [INAF], Patricia Vannier [CDS] 03-Jan-2020