Search Results - "De Lee, Nathan"
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Stellar Multiplicity Meets Stellar Evolution and Metallicity: The APOGEE View
Published in The Astrophysical journal (20-02-2018)“…We use the multi-epoch radial velocities acquired by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to perform a large-scale…”
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SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library-First Release
Published in The Astrophysical journal (01-10-2019)“…We present the first release of the MaNGA Stellar Library (MaStar), which is a large, well-calibrated, high-quality empirical library covering the wavelength…”
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The close binary fraction as a function of stellar parameters in APOGEE: a strong anticorrelation with α abundances
Published in Monthly notices of the Royal Astronomical Society (01-12-2020)“…ABSTRACT We use observations from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to explore the relationship between stellar…”
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rrlfe: software for generating and applying metallicity calibrations for RR Lyrae variable stars across a wide range of phases and temperatures
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT RR Lyrae stars play a central role in tracing phase-space structures within the Milky Way because they are easy to identify, are relatively luminous,…”
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Accurate Group-Delay Measurement for Radial-Velocity Instruments Using the Dispersed Fixed-Delay Interferometer Method
Published in Publications of the Astronomical Society of the Pacific (01-06-2012)“…ABSTRACT The dispersed fixed-delay Intereferometer (DFDI) method is attractive for its low cost, compact size, and multiobject capability in precision…”
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Stellar multiplicity and stellar rotation: insights from APOGEE
Published in Monthly notices of the Royal Astronomical Society (24-03-2022)“…ABSTRACT We measure rotational broadening in spectra taken by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to characterize the…”
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Light Curve Templates and Galactic Distribution of RR Lyrae Stars from Sloan Digital Sky Survey Stripe 82
Published in The Astrophysical journal (01-01-2010)“…We present an improved analysis of halo substructure traced by RR Lyrae stars in the Sloan Digital Sky Survey (SDSS) stripe 82 region. With the addition of…”
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Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT We present a search for close, unresolved companions in a subset of spatially resolved Gaia wide binaries containing main-sequence stars within 200 pc…”
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Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N
Published in The Astrophysical journal. Supplement series (01-04-2023)“…Abstract We report the characterization of 28 low-mass (0.02 M ⊙ ≤ M 2 ≤ 0.25 M ⊙ ) companions to Kepler objects of interest (KOIs), eight of which were…”
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IN-SYNC VI. Identification and Radial Velocity Extraction for 100+ Double-Lined Spectroscopic Binaries in the APOGEE/IN-SYNC Fields
Published in Publications of the Astronomical Society of the Pacific (01-08-2017)“…We present radial velocity measurements for 70 high confidence, and 34 potential binary systems in fields containing the Perseus Molecular Cloud, Pleiades, NGC…”
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The Leo IV Dwarf Spheroidal Galaxy: Color-Magnitude Diagram and Pulsating Stars
Published in The Astrophysical journal (01-07-2009)“…We present the first V, B - V color-magnitude diagram of the Leo IV dwarf spheroidal galaxy, a faint Milky Way satellite recently discovered by the Sloan…”
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Filtergraph: An interactive web application for visualization of astronomy datasets
Published in Astronomy and computing (01-08-2013)“…Filtergraph is a web application being developed and maintained by the Vanderbilt Initiative in Data-intensive Astrophysics (VIDA) to flexibly and rapidly…”
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Variable Stars in the Fornax dSph Galaxy. I. The Globular Cluster Fornax 4
Published in The Astrophysical journal (20-11-2007)“…Variable stars have been identified for the first time in Fornax 4, the globular cluster located near the center of the Fornax dwarf spheroidal galaxy. By…”
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Discovery of a Low-mass Companion to a Metal-rich F Star with the MARVELS Pilot Project
Published in The Astrophysical journal (01-08-2010)“…We report the discovery of a low-mass companion orbiting the metal-rich, main sequence F star TYC 2949-00557-1 during the Multi-object APO Radial Velocity…”
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Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram
Published in The Astrophysical journal (01-05-2020)“…Many problems in contemporary astrophysics-from understanding the formation of black holes to untangling the chemical evolution of galaxies-rely on knowledge…”
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Stellar multiplicity and stellar rotation: insights from APOGEE
Published in Monthly notices of the Royal Astronomical Society (04-03-2022)“…We measure rotational broadening in spectra taken by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to characterize the…”
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Exploring the brown dwarf desert: new substellar companions from the SDSS-III MARVELS survey
Published in Monthly notices of the Royal Astronomical Society (01-06-2017)Get full text
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Multiplicity Statistics of Stars in the Sagittarius Dwarf Spheroidal Galaxy: Comparison to the Milky Way
Published in Astrophysical journal. Letters (01-07-2022)“…Abstract We use time-resolved spectra from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) to examine the distribution of radial velocity…”
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