Search Results - "Geisler, Doug"
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The chemical compositions of accreted and in situ galactic globular clusters according to SDSS/APOGEE
Published in Monthly notices of the Royal Astronomical Society (01-04-2020)“…ABSTRACT Studies of the kinematics and chemical compositions of Galactic globular clusters (GCs) enable the reconstruction of the history of star formation,…”
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The Pristine Inner Galaxy Survey (PIGS) II: Uncovering the most metal-poor populations in the inner Milky Way
Published in Monthly notices of the Royal Astronomical Society (21-08-2020)“…ABSTRACT Metal-poor stars are important tools for tracing the early history of the Milky Way, and for learning about the first generations of stars…”
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Multiple Populations in Low-mass Globular Clusters: Eridanus
Published in The Astrophysical journal (01-02-2023)“…Abstract Multiple populations (MPs), characterized by variations in light elemental abundances, have been found in stellar clusters in the Milky Way,…”
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Washington CCD Photometry of the Globular Cluster System of the Giant Elliptical Galaxy M60 in Virgo
Published in The Astrophysical journal (20-07-2008)“…We present a photometric study of the GCs in the giant elliptical galaxy M60 in the Virgo Cluster, based on deep, relatively wide field Washington [image] CCD…”
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Low-Mass X-Ray Binaries in Six Elliptical Galaxies: Connection to Globular Clusters
Published in The Astrophysical journal (10-08-2006)“…We present a systematic study of the low-mass X-ray binary (LMXB) populations of six elliptical galaxies, aimed at investigating the detected LMXB-globular…”
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Two newly identified, relatively old star clusters in the Small Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society. Letters (01-10-2007)“…We present the results on the age and metallicity estimates of the Small Magellanic Cloud (SMC) clusters L110, L112 and L113 obtained from CCD Washington CT1…”
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Wide-Field Survey of Globular Clusters in M31. II. Kinematics of the Globular Cluster System
Published in The Astrophysical journal (20-02-2008)“…We present a kinematic analysis of the globular cluster (GC) system in M31, using the velocity data for 504 GCs including those for 150 GCs in our wide-field…”
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Five young star clusters in the outer region of the Small Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (11-12-2007)“…Colour–magnitude diagrams in the Washington system are presented for the first time for five star clusters projected on to the outer region of the Small…”
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Tracing the formation history of intermediate-age star clusters in the Small Magellanic Cloud
Published in Monthly notices of the Royal Astronomical Society (01-04-2005)“…Colour–magnitude diagrams (CMDs) are presented for the first time for 10 star clusters projected on to the Small Magellanic Cloud (SMC). The photometry was…”
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NGC 6791: A Probable Bulge Cluster without Multiple Populations
Published in The Astrophysical journal (01-11-2018)“…Abstract NGC 6791 is a unique stellar cluster, key to our understanding of both the multiple stellar population phenomenon and the evolution and assembly of…”
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Detailed Chemical Composition and Orbit of the Newly Discovered Globular Cluster FSR 1758: Implications for the Accretion of the Sequoia Dwarf Galaxy onto the Milky Way Based on observations carried out at the Magellan/Clay telescope under program CN2018B-71
Published in The Astrophysical journal (16-09-2019)“…We present detailed chemical abundances, radial velocity, and orbital parameters for FSR 1758, a recently discovered massive cluster in the direction of the…”
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12
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data
Published in The Astrophysical journal (16-03-2022)“…Abstract This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase…”
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13
The chemical characterization of halo substructure in the Milky Way based on APOGEE
Published in Monthly notices of the Royal Astronomical Society (01-04-2023)“…ABSTRACT Galactic haloes in a Λ-CDM universe are predicted to host today a swarm of debris resulting from cannibalized dwarf galaxies. The chemodynamical…”
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Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code – II. The Southern clusters and overview
Published in Monthly notices of the Royal Astronomical Society (21-02-2020)“…ABSTRACT We investigate the Fe, C, N, O, Mg, Al, Si, K, Ca, Ce, and Nd abundances of 2283 red giant stars in 31 globular clusters from high-resolution spectra…”
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15
APOGEE Chemical Abundance Patterns of the Massive Milky Way Satellites
Published in The Astrophysical journal (01-12-2021)“…Abstract The SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey has obtained high-resolution spectra for thousands of red giant…”
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Detailed Chemical Composition and Orbit of the Newly Discovered Globular Cluster FSR 1758: Implications for the Accretion of the Sequoia Dwarf Galaxy onto the Milky Way
Published in The Astrophysical journal (10-09-2019)“…Abstract We present detailed chemical abundances, radial velocity, and orbital parameters for FSR 1758, a recently discovered massive cluster in the direction…”
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How many components? Quantifying the complexity of the metallicity distribution in the Milky Way bulge with APOGEE
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT We use data of ∼13 000 stars from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment survey to study the shape of the…”
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Disentangling the Galactic Halo with APOGEE. I. Chemical and Kinematical Investigation of Distinct Metal-poor Populations
Published in The Astrophysical journal (01-01-2018)“…We find two chemically distinct populations separated relatively cleanly in the [Fe/H]-[Mg/Fe] plane, but also distinguished in other chemical planes, among…”
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NGC 6791: A Probable Bulge Cluster without Multiple Populations Based on observations carried out at La Silla Paranal Observatory under program 095.D-0294
Published in The Astrophysical journal (29-10-2018)“…NGC 6791 is a unique stellar cluster, key to our understanding of both the multiple stellar population phenomenon and the evolution and assembly of the Galaxy…”
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