Surface brightness measurements for APM galaxies

	Surface brightness measurements for APM galaxies
	Shao, Z; Maddox, SJ ; Jones, JB ; Coles, P
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2003
卷号	338 期号:1 页码:72-84
关键词	surveys galaxies : fundamental parameters galaxies : photometry
英文摘要	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. Results are obtained for 2.4 million galaxies with blue photographic magnitudes brighter than b(J) = 20.5 covering 4300 deg(2) in the region of the South Galactic Cap. Almost all galaxies in our sample have central surface brightness in the range 20 to 24 b (J) mag arcsec(-2). The SB measurements we obtain are compared to previous SB measurements and we find an acceptable level of error of +/-0.2 b (J) mag 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.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	DISK DOMINATED GALAXIES ; FIELD-SOUTH REGION ; PHOTOMETRY ; SELECTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000179912000013
公开日期	2010-11-08
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/11972]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
推荐引用方式 GB/T 7714	Shao, Z,Maddox, SJ,Jones, JB,et al. Surface brightness measurements for APM galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2003,338(1):72-84.
APA	Shao, Z,Maddox, SJ,Jones, JB,&Coles, P.(2003).Surface brightness measurements for APM galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,338(1),72-84.
MLA	Shao, Z,et al."Surface brightness measurements for APM galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 338.1(2003):72-84.