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J/AJ/110/1993 IRAS Bright Galaxy Survey. II (Sanders+ 1995)
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The IRAS Bright Galaxy Survey - Part II: Extension to Southern Declinations
(Dec<=-30deg), and Low Galactic Latitudes (5<|b|<=30deg)
Sanders D.B., Egami E., Lipari S., Mirabel I.F., Soifer B.T.
<Astron. J. 110, 1993 (1995)>
=1995AJ....110.1993S
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ADC_Keywords: Galaxies, IR
Mission_Name: IRAS
Abstract:
Complete IRAS Observations and redshifts are reported for all sources
identified in the IRAS Bright Galaxy Survey - Part II (hereafter
referred to as BGS2). Source positions, radial velocities, optical
magnitudes, and total flux densities, peak flux densities, and spatial
extents at 12, 25, and 100um are reported for 288 sources having
60um flux densities >5.24Jy, the completeness limit of the original
Bright Galaxy Survey [Soifer et al. (1989AJ.....98..766S)], hereafter
referred to as BGS1. These new data represent the extension of the
IRAS Bright Galaxy Survey to southern declinations, Dec<~-30deg,
and low Galactic latitudes, 5deg<|b|<=30deg. Although the sky
coverage of the BGS2 (~19935deg^2) is 37% larger than the sky
coverage of the BGS1, the number of sources is 8% smaller due
primarily to large scale structure in the local distribution of
galaxies. Otherwise, the sources in the BGS2 show similar
relationships between number counts and flux density as observed for
the 313 sources in the BGS1. The BGS2 along with the earlier BGS1,
represents the best sample currently available for defining the
infrared properties of galaxies in the local (z<~0.1) Universe.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1a.dat 123 243 Integrated flux densities of IRAS Bright
Galaxies
table1a.tex 98 609 TeX version of table1a.dat
table1b.dat 123 45 Integrated flux densities of IRAS bright
Galaxies (5deg<|b|<10deg)
table1b.tex 107 273 TeX version of table1b.dat
table2a.dat 61 562 Data for extended sources
table2a.tex 106 583 TeX version of table2a.dat
table2b.dat 61 81 Data for extended sources (5deg<|b|<10deg)
table2b.tex 109 275 TeX version of table2b.dat
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See also:
VII/113 : Galaxies and QSOs observed in IRAS Survey (IPAC 1989)
Byte-by-byte Description of file: table1a.dat, table1b.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name *Name
17- 18 I2 h RAh *Right Ascension (1950)
20- 21 I2 min RAm Right Ascension (1950)
23- 26 F4.1 s RAs Right Ascension (1950)
28 A1 --- DE- Sign Declination (1950)
29- 30 I2 deg DEd Declination (1950)
32- 33 I2 arcmin DEm Declination (1950)
35- 36 I2 arcsec DEs Declination (1950)
38- 42 I5 km/s cz *? Heliocentric radial velocity
43 A1 --- u_cz *Uncertainty flag for cz
45- 50 F6.3 Mpc D *? Distance
52- 55 F4.1 mag m *? "Optical" magnitude
57 A1 --- l_S12 [<] S12 limiting character
58- 64 F7.2 Jy S12 *? Total 12 um IRAS flux density
65 A1 --- n_S12 *[*#] S12 note flag
67- 69 I3 mJy e_S12 ? S12 rms noise of the coadded data
71- 72 A2 --- sS12 *[UR+ ] Size (extent) code for S12
74- 81 F8.2 Jy S25 *? Total 25 um IRAS flux density
82 A1 --- n_S25 *[*#] S25 note flag
84- 86 I3 mJy e_S25 ? S25 rms noise of the coadded data
88- 89 A2 --- sS25 *[UR+ ] Size (extent) code for S25
91- 98 F8.2 Jy S60 *? Total 60 um IRAS flux density
99 A1 --- n_S60 *[*#] S60 note flag
101-103 I3 mJy e_S60 ? S60 rms noise of the coadded data
105-106 A2 --- sS60 *[UR+ ] Size (extent) code for S60
107-115 F9.2 Jy S100 *? Total 100 um IRAS flux density
116 A1 --- n_S100 *[*#] S100 note flag
117-120 I4 mJy e_S100 ? S100 rms noise of the coadded data
122-123 A2 --- sS100 *[UR+ ] Size (extent) code for S100
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Note on Name:
The common catalog name has been taken in decreasing priority order
from the NGC, UGC, ESO, IC, A, MCG, Zwicky catalog, Zwicky lists,
Markarian, Arp-Madore, and IRAS catalogs. In table1b.dat, source IR
19542+1110 (RA=19:54:13.3, DE=+11:10:59) has a tentative
identification of Halpha+[NII]; source not listed in NED.
Note on RAh:
All positions (1950) are taken from the PSC Version 2 <II/125> except for
those galaxies from Rice et al <VII/109> where the positions were taken
from the RC2.
Note on cz:
The heliocentric radial velocity (z=Delta(lambda(opt))/Lambda(opt)
Note on u_cz:
For those galaxies with no published redshift at the time the
current survey was begun (1991), a velocity was measured from
optical spectra obtained with either the UH 2.2 m telescope, or the
2.15 m telescope in Argentina. The typical uncertainty in the
measured redshifts is +/- 30 km/s. All other redshifts are taken
from NED.
Note on D:
Either a "primary distance" from Sandage & Tammann <VII/51> catalog
or a Fisher-Tully distance taken from either Aaronson et al. <VII/75>,
Aaronson & Mould (1983ApJ...265....1A), or Tully & Shaya
(1984ApJ...281...31T) (adjusted to a Virgo distance of 17.6 Mpc). For all
other sources (those with no entry in D), the distance was calculated from
CZ using the "Virgo-centric flow" model of Aaronson et al.
(1982ApJ...258...64A) with an adopted distance to Virgo of 17.6 Mpc
(corresponding to H0=75km/s/Mpc at large distances).
Note on m:
The "optical" magnitude, as listed in the "object data" window in
NED. For those few sources with more than one identified object
within <~ 40" radius of the IRAS position (e.g. multiple "nuclei,"
close merger pairs), only the magnitude of the brightest object has
been given.
Note on S12, S25, S60, S100:
Best estimate for the total IRAS flux density as determined from
coadded data using ADDSCAN/SCANPI. For the six sources not detected
at 12 um, the reported upper limit is taken to be three times the
rms noise of the coadded data. For source ESO 452-G005
(RA=16:28:33.5, DE=-27:59:48), it was impossible to estimate the 100
um flux.
Note on n_S12, n_S25, n_S60, n_S100:
An asterisk (*) indicates that the flux density was taken directly
from Rice et al. <VII/109>, while a hash mark (#) indicates that the
source was partially blended with a nearby source, or that the
baseline was somewhat uncertain and the listed flux has a
correspondingly larger associated uncertainty, typically +/-10%-20%
for sources at |b|>10deg, and +/-10%-30% for sources at |b|=5-10deg.
Note on sS12, sS25, sS60, sS100:
The extent code: U = unresolved source, in which case the flux is
taken as the point-source template fit; U+ = marginally resolved,
and R = resolved, in which case the flux density is the integrated
flux for the source.
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Byte-by-byte Description of file: table2a.dat, table2b.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name *Name as given in table 1
17- 19 I3 um Band Wavelength for the following data
20 A1 --- n_Band *[*#] Band note flag
22- 23 A2 --- Res [RU+ ]Resolution code, R or U+, as in
table 1
25- 33 F9.2 Jy Total The total flux density from table 1
35 A1 --- l_Templ [<] Limiting character for Templ
36- 41 F6.2 Jy Templ *? Estimate from point-source template
42 A1 --- u_Templ Templ uncertainty flag
44- 49 F6.2 Jy Peak *? Peak flux density
51- 55 F5.2 arcmin W25 *? Source width at 25% peak flux density
57- 61 F5.2 arcmin W50 *? Source width at 50% peak flux density
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Note on Name:
In table2b.dat, source IR 19542+1110 has a tentative identification and is
not listed in NED.
Note on n_Band:
An asterisk (*) indicates that the flux density was taken directly
from Rice et al. <VII/109>, while a hash mark (#) indicates that the
source was partially blended with a nearby source, or that the
baseline was somewhat uncertain and the listed flux has a
correspondingly larger associated uncertainty, typically +/-10%-20%
for sources at |b|>10deg, and +/-10%-30% for sources at |b|=5-10deg.
Note on Templ:
The estimate of the flux density from the amplitude of the
point-source template.
Note on Peak:
The peak flux density in the average scan of the source (without the
baseline fit used to determine the template fit).
Note on W25, W50:
No attempt has been made to deconvolve the point-source width.
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Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 19-Feb-1996
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(End) [CDS] 05-Sep-1996