J/MNRAS/355/1303 Rmag surface brightness of HIDEEP galaxies (Minchin+, 2004)
The cosmological significance of low surface brightness galaxies found in a
deep blind neutral hydrogen survey.
Minchin R.F., Disney M.J., Parker Q.A., Boyce P.J., De Blok W.J.G.,
Banks G.D., Ekers R.D., Freeman K.C., Garcia D.A., Gibson B.K., Grossi M.,
Haynes R.F., Knezek P.M., Lang R.H., Malin D.F., Price R.M., Putman M.,
Stewart I.M., Wright A.E.
<Mon. Not. R. Astron. Soc., 355, 1303-1314 (2004)>
=2004MNRAS.355.1303M 2004MNRAS.355.1303M
ADC_Keywords: Surveys ; Galaxies, radio ; Morphology
Keywords: surveys - galaxies: fundamental parameters -
galaxies: luminosity function, mass function - radio lines: galaxies
Abstract:
Minchin et al. (2004, Cat. J/MNRAS/346/787) have recently placed
limits on the cosmological significance of gas-rich low surface
brightness (LSB) galaxies as a proportion of the total population of
gas-rich galaxies by carrying out a very deep survey (HIDEEP) for
neutral hydrogen (HI) with the Parkes multibeam system. Such a survey
avoids the surface brightness selection effects that limit the
usefulness of optical surveys for finding LSB galaxies. To complement
the HIDEEP survey, we have digitally stacked eight 1-h R-band Tech Pan
films from the UK Schmidt Telescope covering 36°2 of the survey
area to reach a very deep isophotal limit of 26.5Rmag/arcsec2. At
this level, we find that all of the 129 HI sources within this area
have optical counterparts and that 107 of them can be identified with
individual galaxies.
Description:
Optical photometry of HIDEEP galaxies was carried out using a
combination of SExtractor (Bertins & Arnouts, 1996A&AS..117..393B 1996A&AS..117..393B) and
the STSDAS package in IRAF, where the ellipse task was used to obtain
radial surface brightness profiles.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 107 Optical properties of HIDEEP galaxies
table2.dat 32 14 Positions of newly discovered galaxies in the
HIDEEP optical area
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See also:
J/MNRAS/346/787 : HIDEEP survey (Minchin+, 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [HIDEEP]
8- 18 A11 --- HIDEEP HIDEEP designation (JHHMM-DDMMA)
20- 49 A30 --- Name ?=- Other name
51- 57 A7 --- Class Classification (1)
59- 62 F4.1 mag Rmag R magnitude (MAG-BEST in SEXTRACTOR)
64- 68 F5.1 arcsec re Effective radius (radius enclosing half the
R-band light)
70- 73 F4.1 mag/arcsec2 SuBre Effective surface brightness, in R band
75- 78 F4.2 --- ell SExtractor ellipticity (1-b/a)
80- 83 F4.2 mag AR Estimated R-band absorption at the position
85- 89 F5.1 mag RMAG Absolute R magnitude
91- 95 F5.2 kpc Re Physical effective radius
97-100 F4.1 mag/arcsec2 SuBrec Effective surface brightness corrected for
(1+z)4 cosmological dimming, inclination
and galactic absorption, in R band
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Note (1): Classification is defined as follows:
ID = objects where both positions and velocities coincide
ID-VLA = previously catalogued galaxy without a redshift has been
confirmed as the optical counterpart through our
observations by interferometry with the VLA.
ID-ATCA = previously catalogued galaxy without a redshift has been
confirmed as the optical counterpart through our
observations by interferometry with the ATCA.
ID-Spec = previously catalogued galaxy without a redshift has been
confirmed as the optical counterpart by spectroscopy at
the ANU 2.3-m telescope at Siding Spring
PCG = (for previously catalogued galaxy) where there is a
positional coincidence with a previously catalogued galaxy
in the NASA Extragalactic Database (NED)
PUG = (for previously uncatalogued galaxy) where there is no
possible counterpart in NED, and thus no previous
positional or redshift data
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- HIDEEP HIDEEP designation (JHHMM-DDMMA)
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 19 I2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 29 I2 arcsec DEs Declination (J2000)
31- 32 A2 --- Run Code for observing run (1)
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Note (1): Code for observing run as follows:
A1 = ATCA, 1999/11
A2 = ATCA, 2000/01
V = VLA, 2003/01-03
A3 = QTCA, 2003/04
Those without a code have not been observed with an interferometer.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 11-Aug-2005