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Author
dc.contributor.author
Baldry, I K 
Author
dc.contributor.author
Glazebrook, K 
Author
dc.contributor.author
Budavari, T 
Author
dc.contributor.author
Eisenstein, D J 
Author
dc.contributor.author
Annis, J 
Author
dc.contributor.author
Bahcall, N A 
Author
dc.contributor.author
Blanton, M R 
Author
dc.contributor.author
Brinkmann, J 
Author
dc.contributor.author
Csabai, I 
Author
dc.contributor.author
Heckman, T M 
Availability Date
dc.date.accessioned
2020-08-08T20:24:11Z
Availability Date
dc.date.available
2020-08-08T20:24:11Z
Release
dc.date.issued
2005
uri
dc.identifier.uri
http://hdl.handle.net/10831/49242
Abstract
dc.description.abstract
We construct and analyse a u-band selected galaxy sample from the Sloan Digital Sky Survey (SDSS) Southern Survey, which covers 275 deg(2). The sample includes 43 223 galaxies with spectroscopic redshifts in the range 0.005 < z < 0.3 and with 14.5 < u < 20.5. The signal-to-noise (S/N) ratio in the u-band Petrosian aperture is improved by co-adding multiple epochs of imaging data and by including sky-subtraction corrections. Luminosity functions for the near-UV(0.1)u band (lambda approximate to 322 +/- 26 nm) are determined in redshift slices of width 0.02, which show a highly significant evolution in M* of -0.8 +/- 0.1 mag between z = 0 and 0.3; with M 5 log h(70) = 18.84 +/- 0.05 (ABmag), log = 2.06 +/- 0.03 (h(70)(3) Mpc(-3)) and log p(L) = 19.11 +/- 0.02 (h(70) W Hz(-1) Mpc(-3))at z = 0.1. The faint-end slope determined for z < 0.06 is given by alpha = 1.05 +/- 0.08. This is in agreement with recent determinations from the Galaxy Evolution Explorer at shorter wavelengths. Comparing our z < 0.3 luminosity density measurements with 0.2 < z < 1.2 from Classifying Objects by Medium Band Observations in 17 Filters (COMBO-17), we find that the 280-nm density evolves as p(L) alpha (1 + z)(beta) with beta = 2.1 +/- 0.2; and find no evidence for any change in slope over this redshift range. By comparing with other measurements of cosmic star formation history, we estimate that the effective dust attenuation at 280 nm has increased by 0.8 +/- 0.3 mag between z = 0 and 1.d 1.
Language
dc.language
Angol
Title
dc.title
The sloan digital sky survey u-band galaxy survey: luminosity functions and evolution
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-06-05T12:40:05Z
Scope
dc.format.page
441-456
Doi ID
dc.identifier.doi
10.1111/j.1365-2966.2005.08799.x
Wos ID
dc.identifier.wos
000227673700011
ID Scopus
dc.identifier.scopus
17044396849
MTMT ID
dc.identifier.mtmt
1064333
Issue Number
dc.identifier.issue
2
abbreviated journal
dc.identifier.jabbrev
MON NOT R ASTRON SOC
Journal
dc.identifier.jtitle
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume Number
dc.identifier.volume
358
Release Date
dc.description.issuedate
2005
department of Author
dc.contributor.institution
Alba Regia Egyetemi Központ
department of Author
dc.contributor.institution
Mérnöki Intézet
department of Author
dc.contributor.institution
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Komplex Rendszerek Fizikája Tanszék


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The sloan digital sky survey u-band galaxy survey: luminosity functions and evolution
 

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