J/MNRAS/335/1085 ATCA SMC Radio Continuum Source. I. (Filipovic+, 2002)
ATCA SMC Radio Continuum Source Catalogue.
I. Source catalogues at 1.42, 2.37, 4.80 and 8.64 GHz.
Filipovic M.D., Bohlsen T., Reid W., Staveley-Smith L., Jones P.A.,
Nohejl K., Goldstein G.
<Mon. Not. R. Astron. Soc. 335, 1085 (2002)>
=2002MNRAS.335.1085F 2002MNRAS.335.1085F
ADC_Keywords: Magellanic Clouds ; Radio sources
Keywords: catalogues - Magellanic Clouds - radio continuum: galaxies
Abstract:
We have analysed radio-continuum mosaics of the Small Magellanic Cloud
(SMC) obtained using both the Australia Telescope Compact Array (ATCA)
and the Parkes telescope and present a new catalogue of sources in the
SMC at 1.42, 2.37, 4.80 and 8.64GHz (λ=20, 13, 6 and 3cm). We
find a total of 717 radio-continuum sources at these frequencies in
the field of the SMC, which is three times more than previous Parkes
surveys. From these 717 radio-continuum sources, some 534 were
detected at 1.42GHz, 697 at 2.37GHz, 75 at 4.80GHz and 54 at 8.64GHz.
The integrated flux density was measured for each of these sources. We
have assessed the accuracy of the position and flux measurements of
our catalogue and found no significant discrepancy with previous
catalogues. Our new data show a significant improvement in sensitivity
(over 10 times) and positional accuracy (<1") over previous catalogues.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 58 534 Catalogue of SMC sources at 1.42GHz
table4.dat 58 697 Catalogue of SMC sources at 2.37GHz
table5.dat 58 75 Catalogue of SMC sources at 4.80GHz
table6.dat 58 54 Catalogue of SMC sources at 8.64GHz
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See also:
J/A+AS/121/321 : SMC catalogue of radiosources (Filipovic+ 1997)
Byte-by-byte Description of file: table3.dat table4.dat table5.dat table6.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name SMC Name (1)
18- 19 I2 h RAh Right Ascension (J2000) hours
21- 22 I2 min RAm Right Ascension (J2000) minutes
24- 28 F5.2 s RAs Right Ascension (J2000) seconds
31 A1 --- DE- Declination sign
32- 33 I2 deg DEd Declination (J2000) degrees
35- 36 I2 arcmin DEm Declination (J2000) arcminutes
38- 42 F5.2 arcsec DEs Declination (J2000) arcseconds
43- 44 A2 --- Note [epv ] Extension flag (2)
46- 49 F4.2 GHz Freq Frequency (one per table)
51- 56 F6.4 Jy S(Freq) Integrated flux density at Freq
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Note (1): The source name derived from the standard IAU format (Lortet et al.,
1994A&AS..107..193L 1994A&AS..107..193L) of 'Jhhmmss-ddmmss'. For easier cross-checking we
have adopted the reference source name based on the position at the
highest frequency, since that position will be the most accurate.
Note (2): The code used here is
p: point sources
e: extended sources
ve: very extended sources
Extended sources are larger than the beam at that frequency.
Very extended sources are more than two times the beam size.
They may also be irregular in shape.
The effective beam sizes are in Table 2:
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Frequency Effective beam size
(GHz) (arcsec)
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1.42 98
2.37 40
4.80 30
8.64 15
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Acknowledgements: Miroslav Filipovic
(End) Patricia Bauer [CDS] 14-Oct-2002