Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714717b&link_type=abstract
American Astronomical Society, AAS Meeting #217, #147.17; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The 2008 discovery of dwarf galaxy And XIX (MV = -9.3, rh 1.7 kpc) around M31 raised the question of whether such large scale size systems could exist around the Milky Way but have evaded previous searches. Since then, the existence of yet-unseen "stealth" galaxies around the Milky Way - dwarfs with larger scale sizes and lower surface brightnesses than those currently known - has independently been predicted as a way to understand the apparent common mass scale of dwarf galaxies. To quantify the unexplored stealth galaxy parameter space around the Milky Way, we investigate the detectability of large scale length (rh > 1 kpc) dwarf galaxies in the Sloan Digital Sky Survey dataset. We do this by i) simulating dwarf galaxies based on a Dotter isochrone of an old, metal-poor stellar population, ii) inserting simulated galaxies into the SDSS point source catalog, and iii) applying a standard search algorithm to the resulting catalog.
Barlev Maya
Fadely Ross
Willman Beth
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