J/ApJS/257/35 MeerKAT 1.28GHz obs. of IRAS RBGS galaxies (Condon+, 2021)
A MeerKAT 1.28GHz atlas of southern sources in the IRAS Revised Bright Galaxy
Sample.
Condon J.J., Cotton W.D., Jarrett T., Marchetti L., Matthews A.M.,
Mauch T., Moloko M.E.
<Astrophys. J. Suppl. Ser., 257, 35-35 (2021)>
=2021ApJS..257...35C 2021ApJS..257...35C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, IR; Radio continuum
Keywords: Infrared galaxies; Radio continuum emission
Luminous infrared galaxies
Abstract:
The IRAS Revised Bright Galaxy Sample (RBGS) comprises galaxies and
unresolved mergers stronger than S=5.24Jy at λ=60µm with
Galactic latitudes |b|>5°. Nearly all are dusty star-forming
galaxies whose radio continuum and far-infrared luminosities are
proportional to their current rates of star formation. We used the
MeerKAT array of 64 dishes to make 5x3min snapshot observations at
ν=1.28GHz covering all 298 southern (DEJ2000<0°) RBGS sources
identified with external galaxies. The resulting images have
θ∼7.5" FWHM resolution and rms fluctuations
σ∼20µJy/beam∼0.26K low enough to reveal even faint disk
emission. The rms position uncertainties are
σα~σδ∼1" relative to accurate
near-infrared positions, and the image dynamic ranges are DR≳104:1.
Description:
Our observations were scheduled as two MeerKAT projects: (1) the
director's discretionary time project DDT-20200520-TM-01 with six
observing runs in 2020 May and June, and (2) the "open time" project
SCI-20210212-TJ-01 with eight runs in 2021 February and March.
The observed frequency range 856 to 1712MHz was divided into
4096 spectral channels, and the integration time was 8s to minimize
bandwidth and time smearing (useful frequency range:
880≲ν(MHz)≲1670, with midpoint v∼1280MHz).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 141 298 The Southern Revised Bright Galaxy Sample (RBGS):
IRAS data (subset of Sanders+, 2003, J/AJ/126/1607)
table3.dat 120 349 The Southern RBGS sample: 1.28GHz MeerKAT data
fits/* . 298 The 298 1.28GHz MeerKAT Stokes I FITS-format images
covering southern sources in the IRAS RBGS
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Description of file:
RBGSFITS.tar.gz = the gzipped data file contains 298 1.28GHz MeerKAT
Stokes I FITS-format images covering southern sources in the IRAS RBGS
as downloaded from http://doi.org/10.48479/dnt7-6q05
See also:
VII/109 : IRAS Observations of Large Optical Galaxies (Rice+, 1988)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
VIII/81 : Sydney University Molonglo Sky Survey (SUMSS V2.1) (Mauch+ 2008)
J/MNRAS/204/151 : Bright radio sources at 178 MHz (3CRR) (Laing+ 1983)
J/ApJS/73/359 : 1.49 GHz atlas of the IRAS bright galaxies (Condon+, 1990)
J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)
J/A+A/555/A23 : M82-A radio continuum & polarisation study I. (Adebahr+, 2013)
J/ApJS/206/1 : Mid-IR properties of GOALS nearby LIRGs (Stierwalt+, 2013)
J/ApJS/229/25 : GOALS sample PACS and SPIRE fluxes (Chu+, 2017)
J/ApJ/856/67 : VLA 3GHz radio source cat. in the Lockman Hole (Cotton+, 2018)
J/ApJ/872/148 : 2MASX/NVSS gal. brighter than K20fe=12.25 (Condon+, 2019)
J/A+A/640/A104 : NGC 1377 ALMA CO 3-2 and 0.8mm continuum images (Aalto+, 2020)
J/A+A/644/A159 : The third realization of the ICRF, ICRF3 (Charlot+, 2020)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I03 --- Seq [1/298] Running sequence number
6- 21 A16 --- Name Common name of the IRAS galaxy
24- 34 A11 --- IRAS IRAS source name
38- 39 I2 h RAh Hour of Right Ascension (J2000) (1)
41- 42 I2 min RAm Minute of Right Ascension (J2000)
44- 47 F4.1 s RAs Second of Right Ascension (J2000)
50 A1 --- DE- Sign of the Declination (J2000) (1)
51- 52 I2 deg DEd Degree of Declination (J2000) (1)
54- 55 I2 arcmin DEm Arcminute of Declination (J2000)
57- 58 I2 arcsec DEs Arcsecond of Declination (J2000)
61 A1 --- l_S12 Upper limit flag on S12
64- 71 F8.2 Jy S12 [0.05/41.1] IRAS 12 micron flux density (1)
74- 81 F8.2 Jy S25 [0.19/155] IRAS 25 micron flux density (1)
84- 91 F8.2 Jy S60 [5/968] IRAS 60 micron flux density (1)
94-101 F8.2 Jy S100 [4/1330]? IRAS 100 micron flux density (1)
104-109 F6.2 Mpc Dc [0.5/344] Comoving Distance (H0=75) (1)
112-116 F5.2 [Lsun] logLIR [7.5/12.4] log of the 8-1000um IR
luminosity (1)
119 A1 --- LIRG [*] *:Indicates a GOALS LIRG
121-141 A21 --- FileName Name of the FITS file in subdirectory "fits";
column added by CDS
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Note (1): Coordinates, IR fluxes, estimated distance and IR luminosity
from Sanders+, 2003, J/AJ/126/1607
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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2- 4 I03 --- Seq [1/298] Index number of the IRAS source
7- 25 A19 --- Name Common name of the associated galaxy
27- 35 F9.2 mJy Stot [0.4/299000]? Total 1.28GHz flux density
37- 43 F7.2 mJy/beam Sp [0.26/4190]? Component flux density per
beam area
45- 51 F7.2 mJy Si [0.4/4560]? Component integrated flux density
53 A1 --- l_Dmaj Upper limit flag on Dmaj
55- 58 F4.1 arcsec Dmaj [0.9/35.6]? Component major-axis FWHM
60 A1 --- l_Dmin Upper limit flag on Dmin
62- 65 F4.1 arcsec Dmin [0.5/25]? Component minor-axis FWHM
69- 71 I3 deg PA [-90/89]? Component position angle E from N
76- 77 I2 h RAh ? Hour of Right Ascension (J2000)
79- 80 I2 min RAm ? Minute of Right Ascension (J2000)
82- 86 F5.2 s RAs ? Second of Right Ascension (J2000)
89 A1 --- DE- Sign of the Declination (J2000)
90- 91 I2 deg DEd ? Degree of Declination (J2000)
93- 94 I2 arcmin DEm ? Arcminute of Declination (J2000)
96- 99 F4.1 arcsec DEs ? Arcsecond of Declination (J2000)
102- 105 F4.2 arcsec Bmaj [7/9.7] Beam major-axis FWHM
108- 111 F4.2 arcsec Bmin [6.8/8.1] Beam minor-axis FWHM
114- 116 I3 deg BPA [-90/90] Beam position angle E from N
120 A1 --- Run Observing run label A through N
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History:
From electronic version of the journal for the tables.
RBGSFITS.tar.gz downloaded from http://doi.org/10.48479/dnt7-6q05
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 21-Feb-2022