NDLI: Far-ultraviolet number counts of field galaxies

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Far-ultraviolet number counts of field galaxies

Content Provider	NASA Technical Reports Server (NTRS)
Author	Gardner, Jonathan P. Siana, Brian D. deMello, Duilia F. Voyer, Elysse N. Teplitz, Harry I.
Copyright Year	2010
Description	The Number counts of far-ultraviolet (FUV) galaxies as a function of magnitude provide a direct statistical measure of the density and evolution of star-forming galaxies. We report on the results of measurements of the rest-frame FUV number counts computed from data of several fields including the Hubble Ultra Deep Field, the Hubble Deep Field North, and the GOODS-North and -South fields. These data were obtained from the Hubble Space Telescope Solar Blind Channel of the Advance Camera for Surveys. The number counts cover an AB magnitude range from 20-29 magnitudes, covering a total area of 15.9 arcmin'. We show that the number counts are lower than those in previous studies using smaller areas. The differences in the counts are likely the result of cosmic variance; our new data cover more area and more lines of sight than the previous studies. The slope of our number counts connects well with local FUV counts and they show good agreement with recent semi-analytical models based on dark matter "merger trees".
File Size	1196160
Page Count	25
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100026437
Archival Resource Key	ark:/13960/t3rv5jc4f
Language	English
Publisher Date	2010-01-01
Access Restriction	Open
Subject Keyword	Astronomy Surveys Slopes Galaxies Dark Matter Hubble Space Telescope Cameras Mathematical Models Line of Sight Counting Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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