Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-07-21
Astronomy and Astrophysics
Astrophysics
22 pages, submitted to AJ. You can find a version with full resolution figures at http://msowww.anu.edu.au/~jerjen/SMS_papers.
Scientific paper
10.1088/0004-6256/137/1/450
[Abridged] A specialized data mining algorithm has been developed using wide-field photometry catalogues, enabling systematic and efficient searches for resolved, extremely low surface brightness satellite galaxies in the halo of the Milky Way (MW). Tested and calibrated with the Sloan Digital Sky Survey Data Release 6 (SDSS-DR6) we recover all fifteen MW satellites recently detected in SDSS, six known MW/Local Group dSphs in the SDSS footprint, and 19 previously known globular and open clusters. In addition, 30 point source overdensities have been found that correspond to no cataloged objects. The detection efficiencies of the algorithm have been carefully quantified by simulating more than three million model satellites embedded in star fields typical of those observed in SDSS, covering a wide range of parameters including galaxy distance, scale-length, luminosity, and Galactic latitude.
Jerjen Helmut
Walsh Shane
Willman Beth
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