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6 papers · 2 filters
Nascent bipolar outflows associated with the first hydrostatic core candidates Barnard 1b-N and 1b-S
M. Gerin, J. Pety, A. Fuente +3
In the theory of star formation, the first hydrostatic core (FHSC) phase is a critical step in which a condensed object emerges from a prestellar core. This step lasts about one th…
The UV, Lyman-alpha, and dark matter halo properties of high redshift galaxies
T. Garel, J. Blaizot, B. Guiderdoni +3
We explore the properties of high-redshift Lyman-alpha emitters (LAE), and their link with the Lyman-Break galaxy population (LBG), using a semi-analytic model of galaxy formation…
P-MaNGA: Full spectral fitting and stellar population maps from prototype observations
David M. Wilkinson, Claudia Maraston, Daniel Thomas +31
MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) is a 6-year SDSS-IV survey that will obtain resolved spectroscopy from 3600 to 10300 for a representative sample…
P-MaNGA: Gradients in Recent Star Formation Histories as Diagnostics for Galaxy Growth and Death
Cheng Li, Enci Wang, Lin Lin +31
We present an analysis of the data produced by the MaNGA prototype run (P-MaNGA), aiming to test how the radial gradients in recent star formation histories, as indicated by the 40…
The Atlas3D Project - XXX. Star formation histories and stellar population scaling relations of early-type galaxies
Richard M. McDermid, Katherine Alatalo, Leo Blitz +20
We present the stellar population content of early-type galaxies from the Atlas3D survey. Using spectra integrated within apertures covering up to one effective radius, we apply tw…
The Next Generation Virgo Cluster Survey. VI. The Kinematics of Ultra-compact Dwarfs and Globular Clusters in M87
Hong-Xin Zhang, Eric W. Peng, Patrick Cote +19
The origin of ultra-compact dwarfs (UCDs)--objects larger and more massive than typical globular clusters (GCs), but more compact than typical dwarf galaxies--has been hotly debate…