2003MNRAS.338...72S

Query : 2003MNRAS.338...72S

2003MNRAS.338...72S - Mon. Not. R. Astron. Soc., 338, 72 (2003/January-1)

Surface brightness measurements for APM galaxies.

SHAO Z., MADDOX S.J., JONES J.B. and COLES P.

Abstract (from CDS):

This paper considers some simple surface brightness (SB) estimates for galaxies in the Automated Plate Measuring machine (APM) catalogue in order to derive homogeneous SB data for a very large sample of faint galaxies. The isophotal magnitude and area are used to estimate the central surface brightness and total magnitude based on the assumption of an exponential SB profile. The SB measurements are corrected for field effects on each UK Schmidt plate and the zero-point of each plate is adjusted to give a uniform sample of SB and total magnitude estimates over the whole survey.
Result. are obtained for 2.4 million galaxies with blue photographic magnitudes brighter than bJ= 20.5 covering 4300deg2 in the region of the South Galactic Cap. Almost all galaxies in our sample have central surface brightness in the range 20 to 24 bJmag.arcsec–2. The SB measurements we obtain are compared to previous SB measurements and we find an acceptable level of error of ±0.2 bJmag.arcsec–2. The distribution of SB profiles is considered for different galaxy morphologies for the bright APM galaxies. We find that early-type galaxies have more centrally concentrated profiles.

Abstract Copyright: RAS

Journal keyword(s): surveys - galaxies: fundamental parameters - galaxies: photometry

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME HDF-S reg 22 32 56 -60 33.0           ~ 580 0

Query : 2003MNRAS.338...72S

Basic data :
NAME HDF-S -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		22 32 56.0 -60 33 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		22 29 37.3 -60 48 28 [ ]
Gal coord. (ep=J2000) : 		328.2511 -49.2122 [ ]
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NAME HDF-S NAME HDFS NAME Hubble Deep Field South NAME Southern Hubble Deep Field

References (580 between 1850 and 2026) (Total 580)
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