H I-SELECTED GALAXIES IN THE SLOAN DIGITAL SKY SURVEY. I. OPTICAL DATA
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West-2010-HI-SELECTED GALAXIES.pdf
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Author(s)
Garcia-Appadoo, Diego A.
J. Dalcanton, Julianne
Disney, Mike J.
Rockosi, Constance M.
Bentz, Misty C.
Brinkmann, Jon
Ivezic, Zeljko
West, A. A.
Date Issued
December 2009
Journal
The Astronomical Journal
Publisher
IOP Publishing
Citation
West, Andrew A., Diego A. Garcia-Appadoo, Julianne J. Dalcanton, Mike J. Disney, Constance M. Rockosi, Zeljko Ivezic, Misty C. Bentz, and J. Brinkmann. “H I-SELECTED GALAXIES IN THE SLOAN DIGITAL SKY SURVEY. I. OPTICAL DATA.” The Astronomical Journal 139, no. 2 (December 16, 2009): 315–328. © 2010 The American Astronomical Society
Version
Final published version
Abstract
We present the optical data for 195 H I-selected galaxies that fall within both the Sloan Digital Sky Survey (SDSS) and the Parkes Equatorial Survey (ES). The photometric quantities have been independently recomputed for our sample using a new photometric pipeline optimized for large galaxies, thus correcting for SDSS's limited reliability for automatic photometry of angularly large or low surface brightness (LSB) galaxies. We outline the magnitude of the uncertainty in the SDSS catalog-level photometry and derive a quantitative method for correcting the over-sky subtraction in the SDSS photometric pipeline. The main thrust of this paper is to present the ES/SDSS sample and discuss the methods behind the improved photometry, which will be used in future scientific analysis. We present the overall optical properties of the sample and briefly compare to a volume-limited, optically selected sample. Compared to the optically selected SDSS sample (in the similar volume), H I-selected galaxies are bluer and more luminous (fewer dwarf ellipticals and more star formation). However, compared to typical SDSS galaxy studies, which have their own selection effect, our sample is bluer, fainter, and less massive.
MIT Department
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
https://doi.org/10.1088/0004-6256/139/2/315
