NOAO >   Observing Info >   Approved Programs >   2013B-0449

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Proposal Information for 2013B-0449


PI: Dmitry Bizyaev, New Mexico State University, dmbiz@apo.nmsu.edu
Address: 2001 Apache Point Rd., Sunspot, NM 88349, USA

CoI: Verne Smith, NOAO
CoI: Katia Cunha, NOAO
CoI: Anatoly Klypin, NMSU
CoI: Dmitry Makarov, SAO RAS
CoI: Lidia Makarova, SAO RAS

Title: NEW DWARF GALAXIES IN THE LOCAL VOLUME/LOCAL GROUP

Abstract: Modern cosmological simulations predict a large number of small galaxies in the Local Volume. Observed number of the galaxies is a few times less than the predicted. We undertook an attempt to discover low surface brightness dwarf galaxies in SDSS Stripe 82 area and selected a dozen of candidates. Observations with small telescopes confirmed galactic nature of the low surface brightness candidates, but did not allow us to measure distances. We propose to conduct photometric and spectroscopic observations of five candidates to the low surface brightness dwarfs anticipated to be in the nearby Local Volume (3 Mpc) or even at the edge of the Local Group (2 Mpc) in order to resolve their red giant branch and to measure their radial velocities. Observations of the dwarfs and confirmation of their distances will help to study their visible and dark matter content. Confirmed low surface brightness dwarfs will help to improve search criteria, to apply them to the whole SDSS footprints, and thus to make steps towards solution of the missing satellite problem.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2013B-0449

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