Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21833401d&link_type=abstract
American Astronomical Society, AAS Meeting #218, #334.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We present optical long-slit spectra for a sample of low surface brightness galaxies selected either from the Sloan Digital Sky Survey (SDSS) or from the HI 21 cm Arecibo Legacy Fast ALFA (ALFALFA) survey. We use these spectra, combined with optical data from the SDSS and HI data from ALFALFA, to contrast the properties of optically selected low surface brightness galaxies with those selected by their HI emission. In particular, we examine the dark matter fractions and star forming properties of the systems. These spectra are also used to assist in understanding the completeness of the combined ALFALFA and SDSS surveys and our ability to match sources between the surveys.
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