J/A+AS/126/325 Compact Radio Sources in & behind LMC catalogue (Marx+ 1997)
A Catalogue of Compact Radio Sources in and behind the Large Magellanic Cloud
Marx M., Dickey J.M., Mebold U.
<Astron. Astrophys. Suppl. Ser. 126, 325 (1997)>
=1997A&AS..126..325M 1997A&AS..126..325M (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Radio sources
Keywords: Magellanic Clouds - Radio continuum: galaxies - Surveys -
HII regions - Methods: statistical
Abstract:
We present the results of a continuum snapshot survey of a
3x4°2 region of the Large Magellanic Cloud including the area
of the giant molecular cloud and the 30 Doradus nebula. The
observations have been carried out with the Australia Telescope
Compact Array (ATCA) at 1.4 and 2.4GHz. Most fields are complete to
about 6mJy peak flux density at 1.4GHz and to about 3mJy at 2.4GHz.
The positions, peak and integral flux densities of 113 compact (<54")
sources detected at 1.4GHz and of 70 sources (<34") detected at 2.4GHz
are presented. Positions are accurate to about 3" and peak flux
densities are accurate to about 10% or better, depending on the source
position relative to the pointing centers. 32 of the sources detected
at 1.4GHz are coincident with Hα objects in the catalogue of
Davies, Elliot and Meaburn (1976MmRAS..81...89D 1976MmRAS..81...89D); these are possibly
intrinsic to the LMC. However, we suppose that most are background
objects, since the number vs. flux agrees with predictions of
extragalactic source counts from other surveys.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3 101 113 The source list at 1.4 GHz
table4 57 70 The source list at 2.4 GHz
tables.tex 121 475 LaTeX version of the tables
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See also:
J/A+AS/111/31 : Radio continuum study of the MC (Filipovic+, 1995)
J/A+AS/120/77 : Radio continuum study of the MC (Filipovic+, 1996)
VIII/38 : The Parkes-MIT-NRAO 4.85GHz (PMN) Surveys (Griffith+ 1993-1996)
Byte-by-byte Description of file: table3 table4
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Bytes Format Units Label Explanations
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1- 7 A7 --- Name Source name
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 19 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
33- 35 I3 mJy Si Integrated flux density
37- 39 I3 mJy Sp Peak flux density
41 A1 --- l_uvr Limit flag on uvr
42 I1 --- uvr Spacing used (1)
44- 45 I2 --- uvt Value of the tapering (1)
47- 49 A3 --- Field Field in which the source was detected
51- 55 F5.2 --- alpha ? Spectral index between 1.4 and 2.4GHz
(only table4)
57-101 A45 --- Ident Identifications (only table3)
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Note (1): Spacings used and values of the tapering when imaging the data with
the AIPS routine MX, which combines the Fourier Transform imaging
with the deconvolution of the synthesized beam. The results were
obtained by restricting the data to baselines longer than 3kλ
to exclude the poorly sampled extended emission.
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(End) Patricia Bauer [CDS] 14-Apr-1997