Search Results - "Marshall, J. L."
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Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…On 17 August 2017, gravitational waves (GWs) were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB…”
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Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger
Published in Science (American Association for the Advancement of Science) (22-12-2017)“…On 17 August 2017, Swope Supernova Survey 2017a (SSS17a) was discovered as the optical counterpart of the binary neutron star gravitational wave event…”
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Stellar Streams Discovered in the Dark Energy Survey
Published in The Astrophysical journal (01-08-2018)“…We perform a search for stellar streams around the Milky Way using the first 3 yr of multiband optical imaging data from the Dark Energy Survey (DES). We use…”
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Milky Way Satellite Census. I. The Observational Selection Function for Milky Way Satellites in DES Y3 and Pan-STARRS DR1
Published in The Astrophysical journal (01-04-2020)“…We report the results of a systematic search for ultra-faint Milky Way satellite galaxies using data from the Dark Energy Survey (DES) and Pan-STARRS1 (PS1)…”
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Milky Way Satellite Census. II. Galaxy-Halo Connection Constraints Including the Impact of the Large Magellanic Cloud
Published in The Astrophysical journal (01-04-2020)“…The population of Milky Way (MW) satellites contains the faintest known galaxies and thus provides essential insight into galaxy formation and dark matter…”
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Farthest Neighbor: The Distant Milky Way Satellite Eridanus II
Published in The Astrophysical journal (20-03-2017)“…Abstract We present Magellan /IMACS spectroscopy of the recently discovered Milky Way satellite Eridanus II (Eri II). We identify 28 member stars in Eri II,…”
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Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data
Published in Monthly notices of the Royal Astronomical Society (21-12-2016)“…Shear peak statistics has gained a lot of attention recently as a practical alternative to the two-point statistics for constraining cosmological parameters…”
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The Splashback Feature around DES Galaxy Clusters: Galaxy Density and Weak Lensing Profiles
Published in The Astrophysical journal (01-09-2018)“…Splashback refers to the process of matter that is accreting onto a dark matter halo reaching its first orbital apocenter and turning around in its orbit. The…”
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Three new VHS–DES quasars at 6.7 < z < 6.9 and emission line properties at z > 6.5
Published in Monthly notices of the Royal Astronomical Society (01-08-2019)“…We report the results from a search for z > 6.5 quasars using the Dark Energy Survey (DES) Year 3 data set combined with the VISTA Hemisphere Survey (VHS) and…”
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Dark Energy Survey Year 1 Results: Detection of Intracluster Light at Redshift ∼ 0.25
Published in The Astrophysical journal (01-04-2019)“…Using data collected by the Dark Energy Survey (DES), we report the detection of intracluster light (ICL) with ∼300 galaxy clusters in the redshift range of…”
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Nearest Neighbor: The Low-mass Milky Way Satellite Tucana III
Published in The Astrophysical journal (20-03-2017)“…Abstract We present Magellan/IMACS spectroscopy of the recently discovered Milky Way satellite Tucana III (Tuc III). We identify 26 member stars in Tuc III…”
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The First Tidally Disrupted Ultra-faint Dwarf Galaxy?: A Spectroscopic Analysis of the Tucana III Stream
Published in The Astrophysical journal (10-10-2018)“…Abstract We present a spectroscopic study of the tidal tails and core of the Milky Way satellite Tucana III, collectively referred to as the Tucana III stream,…”
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Quasar Accretion Disk Sizes from Continuum Reverberation Mapping from the Dark Energy Survey
Published in The Astrophysical journal (01-08-2018)“…We present accretion disk size measurements for 15 luminous quasars at 0.7 ≤ z ≤ 1.9 derived from griz light curves from the Dark Energy Survey. We measure the…”
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Photometric redshift analysis in the Dark Energy Survey Science Verification data
Published in Monthly notices of the Royal Astronomical Society (01-12-2014)“…We present results from a study of the photometric redshift performance of the Dark Energy Survey (DES), using the early data from a Science Verification…”
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Constraints on the richness–mass relation and the optical-SZE positional offset distribution for SZE-selected clusters
Published in Monthly notices of the Royal Astronomical Society (11-12-2015)“…We cross-match galaxy cluster candidates selected via their Sunyaev–Zel'dovich effect (SZE) signatures in 129.1 deg2 of the South Pole Telescope 2500d SPT-SZ…”
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The Kilodegree Extremely Little Telescope (KELT): A Small Robotic Telescope for Large‐Area Synoptic Surveys
Published in Publications of the Astronomical Society of the Pacific (01-08-2007)“…The Kilodegree Extremely Little Telescope (KELT) project is a survey for planetary transits of bright stars. It consists of a small‐aperture, wide‐field…”
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Galaxy clustering, photometric redshifts and diagnosis of systematics in the DES Science Verification data
Published in Monthly notices of the Royal Astronomical Society (01-02-2016)“…We study the clustering of galaxies detected at i < 22.5 in the Science Verification observations of the Dark Energy Survey (DES). Two-point correlation…”
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Blinding multiprobe cosmological experiments
Published in Monthly notices of the Royal Astronomical Society (15-04-2020)“…ABSTRACT The goal of blinding is to hide an experiment’s critical results – here the inferred cosmological parameters – until all decisions affecting its…”
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Timing the r-process Enrichment of the Ultra-faint Dwarf Galaxy Reticulum II
Published in The Astrophysical journal (01-02-2023)“…Abstract The ultra-faint dwarf galaxy Reticulum II (Ret II) exhibits a unique chemical evolution history, with 72 − 12 + 10 % of its stars strongly enhanced in…”
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Circumstellar material in type Ia supernovae via sodium absorption features
Published in Science (American Association for the Advancement of Science) (12-08-2011)“…Type Ia supernovae are key tools for measuring distances on a cosmic scale. They are generally thought to be the thermonuclear explosion of an accreting white…”
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