Search Results - "Ostheimer, James C"
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A Two Micron All Sky Survey View of the Sagittarius Dwarf Galaxy. I. Morphology of the Sagittarius Core and Tidal Arms
Published in The Astrophysical journal (20-12-2003)Get full text
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GLOBAL PROPERTIES OF M31'S STELLAR HALO FROM THE SPLASH SURVEY. I. SURFACE BRIGHTNESS PROFILE
Published in The Astrophysical journal (20-11-2012)“…We present the surface brightness profile of M31's stellar halo out to a projected radius of 175 kpc. The surface brightness estimates are based on confirmed…”
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The SPLASH Survey: Internal Kinematics, Chemical Abundances, and Masses of the Andromeda I, II, III, VII, X, and XIV Dwarf Spheroidal Galaxies
Published in The Astrophysical journal (10-03-2010)“…We present new Keck/DEIMOS spectroscopic observations of hundreds of individual stars along the sightline to the first three of the Andromeda (M31) dwarf…”
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The Metal-poor Halo of the Andromeda Spiral Galaxy (M31)
Published in The Astrophysical journal (01-09-2006)“…We present spectroscopic observations of red giant branch (RGB) stars over a large expanse in the halo of the Andromeda spiral galaxy (M31), acquired with the…”
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Kinematic and Chemical Constraints on the Formation of M31's Inner and Outer Halo
Published in The Astrophysical journal (20-12-2008)“…The halo of M31 shows a wealth of substructures, some of which are consistent with assembly from satellite accretion. Here we report on kinematic and abundance…”
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A New Method for Isolating M31 Red Giant Stars: The Discovery of Stars out to a Radial Distance of 165 kpc
Published in The Astrophysical journal (01-12-2006)“…We present a method for isolating a clean sample of red giant branch stars in the outer regions of M31. Our study is based on an ongoing spectroscopic survey…”
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Stellar Kinematics in the Complicated Inner Spheroid of M31: Discovery of Substructure along the Southeastern Minor Axis and Its Relationship to the Giant Southern Stream
Published in The Astrophysical journal (10-10-2007)“…We present the discovery of a kinematically cold stellar population along the southeastern minor axis of the Andromeda galaxy (M31) that is likely the forward…”
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Exploring Halo Substructure with Giant Stars. X. Extended Dark Matter or Tidal Disruption?: The Case for the Leo I Dwarf Spheroidal Galaxy
Published in The Astrophysical journal (10-07-2007)Get full text
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THE SPLASH SURVEY: SPECTROSCOPY OF 15 M31 DWARF SPHEROIDAL SATELLITE GALAXIES
Published in The Astrophysical journal (10-06-2012)Get full text
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10
Detection of the Main-Sequence Turnoff of a Newly Discovered Milky Way Halo Structure in the Triangulum-Andromeda Region
Published in The Astrophysical journal (10-11-2004)“…An upper main sequence (MS) and main-sequence turnoff (MSTO) feature appears in the color-magnitude diagram (CMD) of a large-area photometric survey of the…”
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THE SPLASH SURVEY: SPECTROSCOPY OF 15 M31 DWARF SPHEROIDAL SATELLITE GALAXIES
Published in The Astrophysical journal (10-06-2012)“…We present a resolved star spectroscopic survey of 15 dwarf spheroidal (dSph) satellites of the Andromeda galaxy (M31). We filter foreground contamination from…”
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12
Global Properties of M31's Stellar Halo from the SPLASH Survey. I. Surface Brightness Profile
Published 13-11-2012“…The Astrophysical Journal, Volume 760, Issue 1, article id. 76, 21pp, (2012) We present the surface brightness profile of M31's stellar halo out to a projected…”
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The SPLASH Survey: Spectroscopy of 15 M31 Dwarf Spheroidal Satellite Galaxies
Published 23-05-2012“…ApJ, 752, 45 2012 We present a resolved-star spectroscopic survey of 15 dwarf spheroidal (dSph) satellites of the Andromeda Galaxy (M31) as part of the…”
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The SPLASH Survey: Internal Kinematics, Chemical Abundances, and Masses of the Andromeda I, II, III, VII, X, and XIV dSphs
Published 26-01-2010“…Astrophys.J.711:671-692,2010 We present new Keck/DEIMOS spectroscopic observations of hundreds of individual stars along the sightline to Andromeda's first…”
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Exploring Halo Substructure with Giant Stars VIII: The Extended Structure of the Sculptor Dwarf Spheroidal Galaxy
Published 02-08-2005“…Astron.J.131:375-406,2006 (Abridged) We explore the spatial distribution of stars in the Sculptor dwarf spheroidal (dSph) galaxy over an area of 7.82 deg^2. We…”
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A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: I. Morphology of the Sagittarius Core and Tidal Arms
Published 10-04-2003“…Astrophys.J. 599 (2003) 1082-1115 We present the first all-sky view of the Sagittarius (Sgr) dwarf galaxy mapped by M giant star tracers detected in the…”
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Discovery of an Extended Halo of Metal-poor Stars in the Andromeda Spiral Galaxy
Published 07-05-2006“…This paper has been withdrawn. Please see astro-ph/0502366…”
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Detection of the Main Sequence Turn-off of a Newly Discovered Milky Way Halo Structure in the Triangulum-Andromeda Region
Published 08-06-2004“…Astrophys.J. 615 (2004) 738-743 An upper main sequence (MS) and main-sequence turn-off (MSTO) feature appears in the color-magnitude diagram (CMD) of a large…”
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Stellar Kinematics in the Complicated Inner Spheroid of M31: Discovery of Substructure Along the Southeastern Minor Axis and its Relationship to the Giant Southern Stream
Published 01-03-2007“…We present the discovery of a kinematically-cold stellar population along the SE minor axis of the Andromeda galaxy (M31) that is likely the forward…”
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20
Discovery of an extended halo of metal-poor stars in the Andromeda spiral galaxy
Published 18-02-2005“…Understanding galaxy formation involves look-back and fossil-record studies of distant and nearby galaxies, respectively. Debris trails in our Galaxy's…”
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