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J/ApJS/105/209 Low surface brightness galaxies. I. The catalog (Impey+ 1996)
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Low surface brightness galaxies in the local universe. I. The catalog.
Impey C.D., Sprayberry D., Irwin M.J., Bothun G.D.
<Astrophys. J. Suppl. Ser. 105, 209 (1996)>
=1996ApJS..105..209I (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxies, photometry
Keywords: galaxies: distances and redshifts - galaxies: fundamental parameters -
galaxies: luminosity function, mass function - galaxies: photometry -
radio lines: galaxies - surveys
Abstract:
Data are presented for 693 galaxies identified in a large new survey
for low surface brightness galaxies in the nearby universe (z<=0.1).
The survey covers 786 square degrees centered on the equator, and it
extends significantly the surface brightness range of galaxy surveys
in which there are a substantial number of galaxies with redshifts.
The data are derived from the Automated Plate Measuring machine scans
of survey plates from the UK Schmidt Telescope and from follow-up
observations at radio and optical wavelengths. Accurate positions,
total B magnitudes, surface brightness parameters, and angular size
are tabulated for each galaxy. Radial velocities, optical
luminosities, and neutral hydrogen masses are listed for a subset of
the sample. Finding charts are also presented for those objects having
a large enough angular size that the scans from survey plates provide
some morphological information. The selection function and the
luminosity function that can be derived from the survey are discussed
in two companion papers.
See also:
1996ApJ...463..535S : Paper II. Sprayberry et al.
(Paper III in prep.)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 105 516 Low Surface Brightness (LSB) Galaxies,
Large Angular Size
table2.dat 86 180 LSB Galaxies, Small Angular Size
table3.dat 61 199 LSB Galaxies: Catalog Cross-Identifications
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Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Galaxy name
11 A1 --- n_Name [c] Note (1)
13- 14 I2 h RAh Right ascension (1950)
15- 16 I2 min RAm Right ascension (1950)
17- 20 F4.1 s RAs Right ascension (1950)
21 A1 --- DE- Declination sign
22- 23 I2 deg DEd Declination (1950)
24- 25 I2 arcmin DEm Declination (1950)
26- 27 I2 arcsec DEs Declination (1950)
30- 34 I5 km/s HRV ? Heliocentric radial velocity determined
from the low-resolution optical
spectroscopy for galaxies observed with
the MMT
36- 40 I5 km/s HRVHI ? Heliocentric radial velocity determined
from the radio observations for galaxies
detected in 21cm HI emission
43- 46 F4.1 mag Btot Total B magnitude
48- 51 F4.1 mag/arcsec2 mu0 Central surface brightness in B magnitude
53- 56 F4.1 mag/arcsec2 mue Surface brightness in B magnitude at the
effective radius
58- 61 F4.1 arcsec Reff Effective radius
64- 68 F5.2 [solMass] log(MHI) ? HI mass
70- 74 F5.1 mag BMag ? Absolute B magnitude
76-104 A29 --- Com Comments (2)
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Note (1): c: Object with name ending in `x' not identified in original
scan of UKST plates, but included because it could be
observed simultaneously with identified object nearby.
Note (2): Explanation of the `Comments' column:
1) the first entry for each galaxy is its Hubble type, with `cpn' used
as an abbreviation for `companion' where appropriate
2) for galaxies described as `Interacting', the radio and optical
luminosities include the complete interacting system, unless
indicated otherwise;
3) the entry `CCD' indicates that the magnitudes were obtained from
direct CCD observations, and the absence of such an entry indicates
that the magnitudes were obtained from the APM scans of the UK
Schmidt survey plates
4) the entry `H I n/d' indicates that the galaxy was observed but not
detected in the 21 cm line redshifted to the radial velocity
determined from optical spectroscopy
5) the entry `Vopt?' indicates that the optical spectrum has a very low
S/N ratio and that the radial velocity determined from that spectrum
is therefore unreliable
6) the entry `delta_v cpn' indicates that a large difference between
V_opt and V_HI is probably due to dynamical interaction with a
companion.
Notes (preceded by ^):
a) Reduced photometric accuracy due to light clouds.
b) Putative detection may be GPS satellite or other interference.
d) No detection at known radial velocity, but severity of
interference prevents determination of a meaningful upper
limit on gas mass.
e) Obvious detection, but interference prevents accurate
measurement of flux integral; reported gas mass is a lower
limit.
f) Reduced photometric accuracy due to scattered light or other
instrumental problem.
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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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1- 10 A10 --- Name Galaxy name from table1 or table2
12- 13 I2 h RAh Right ascension (1950)
14- 15 I2 min RAm Right ascension (1950)
16- 19 F4.1 s RAs Right ascension (1950)
20 A1 --- DE- Declination sign
21- 22 I2 deg DEd Declination (1950)
23- 24 I2 arcmin DEm Declination (1950)
25- 26 I2 arcsec DEs Declination (1950)
29- 45 A17 --- ID Catalogue designation
47- 48 I2 h RA2h Right ascension (1950)
49- 50 I2 min RA2m Right ascension (1950)
51- 54 F4.1 s RA2s Right ascension (1950)
55 A1 --- DE2- Declination sign
56- 57 I2 deg DE2d Declination (1950)
58- 59 I2 arcmin DE2m Declination (1950)
60- 61 I2 arcsec DE2s Declination (1950)
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Acknowledgements:
Thanks are due to H. Andernach <hja@vilspa.esa.es>
who forwarded his copy (catalog numbered A321 in his list)
originally mailed in latex by Chris Impey <impey@as.arizona.edu>
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(End) Patricia Bauer [CDS] 21-Feb-1997