ULTRAVIOLET NUMBER COUNTS OF GALAXIES FROM SWIFT ULTRAVIOLET/OPTICAL TELESCOPE DEEP IMAGING OF THE CHANDRA DEEP FIELD SOUTH

Journal Article · Tue Nov 10 00:00:00 EST 2009 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/705/2/1462· OSTI ID:21378282

Hoversten, E A; Gronwall, C; Koch, T S; Roming, P W. A.; Siegel, M H ^[1]; Berk, D E. Vanden ^[2]; Breeveld, A A; Curran, P A; Still, M ^[3]; Hinshaw, D A; Marshall, F E ^[4]

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1. Department of Astronomy and Astrophysics, The Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16801 (United States)
2. Physics Department, St. Vincent College, Latrobe, PA 15650 (United States)
3. Mullard Space Science Laboratory/UCL, Holmbury St. Mary, Dorking, Surrey RH5 6NT (United Kingdom)
4. NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

Deep Swift UV/Optical Telescope (UVOT) imaging of the Chandra Deep Field South is used to measure galaxy number counts in three near-ultraviolet (NUV) filters (uvw2: 1928 A, uvm2: 2246 A, and uvw1: 2600 A) and the u band (3645 A). UVOT observations cover the break in the slope of the NUV number counts with greater precision than the number counts by the Hubble Space Telescope Space Telescope Imaging Spectrograph and the Galaxy Evolution Explorer, spanning a range 21 approx< m{sub AB} approx< 25. Model number counts confirm earlier investigations in favoring models with an evolving galaxy luminosity function.

• OSTI ID: 21378282
• Journal Information: Astrophysical Journal, Vol. 705, Issue 2; Other Information: DOI: 10.1088/0004-637X/705/2/1462; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
GALACTIC EVOLUTION
GALAXIES
LUMINOSITY
MASS
TELESCOPES
ULTRAVIOLET RADIATION
ELECTROMAGNETIC RADIATION
EVOLUTION
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS