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The Missing Satellite Problem Outside of the Local Group: I -- Pilot Observation
Masayuki Tanaka, Masashi Chiba, Kohei Hayashi +5
We present results from a pilot observation of nearby (~20 Mpc) galaxies with mass similar to that of the Milky Way (MW) to address the missing satellite problem. This is the first…
Systematic search for tidal features around nearby galaxies: I. Enhanced SDSS imaging of the Local Volume
Gustavo Morales, David Martínez-Delgado, Eva K. Grebel +3
In hierarchical models of galaxy formation, stellar tidal streams are expected around most, if not all, galaxies. Although these features may provide useful diagnostics of the C…
Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations
Robert J. J. Grand, John Helly, Azadeh Fattahi +12
We present and analyse mock stellar catalogues that match the selection criteria and observables (including uncertainties) of the Gaia satellite data release 2 (DR2). The source ar…
xGASS: Total cold gas scaling relations and molecular-to-atomic gas ratios of galaxies in the local Universe
Barbara Catinella, Amélie Saintonge, Steven Janowiecki +10
We present the extended GALEX Arecibo SDSS Survey (xGASS), a gas fraction-limited census of the atomic (HI) gas content of 1179 galaxies selected only by stellar mass ($M_\star =10…