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Precise Ages of Field Stars From White Dwarf Companions in Gaia DR2
Dan Qiu, Hai-Jun Tian, Xi-Dong Wang +5
We analyze 4\,050 wide binary star systems involving a white dwarf (WD) and usually a main sequence (MS) star, drawn from the large sample assembled by \citet[][hereafter, T20]{Tia…
Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
Adrian M. Price-Whelan, David W. Hogg, Kathryn V. Johnston +9
Many approaches to galaxy dynamics assume that the gravitational potential is simple and the distribution function is time-invariant. Under these assumptions there are traditional…
Kiloparsec-scale ALMA Imaging of [CII] and Dust Continuum Emission of 27 Quasar Host Galaxies at z~6
Bram Venemans, Fabian Walter, Marcel Neeleman +12
We present a study of the [CII] 158micron line and underlying far-infrared (FIR) continuum emission of 27 quasar host galaxies at z~6, traced by the Atacama Large Millimeter/submil…
Informing the Cataclysmic Variable Donor Sequence from Gaia DR2 Color-Magnitude and Inferred Variability Metrics
Ellianna S. Abrahams, Joshua S. Bloom, Nami Mowlavi +5
Short-period cataclysmic variables (spCVs), with orbital periods below the period gap ( < 2 hr), offer insight into the evolutionary models of CVs and can serve as strong…
No evidence for [CII] halos or high-velocity outflows in z>6 quasar host galaxies
Mladen Novak, Bram P. Venemans, Fabian Walter +13
We study the interstellar medium in a sample of 27 high-redshift quasar host galaxies at z>6, using the [CII] 158um emission line and the underlying dust continuum observed at ~1kp…
The X-SHOOTER/ALMA sample of Quasars in the Epoch of Reionization. I. NIR spectral modeling, iron enrichment and broad emission line properties
Jan-Torge Schindler, Emanuele Paolo Farina, Eduardo Banados +15
We present X-SHOOTER near-infrared spectroscopy of a large sample of 38 luminous ( to ) quasars at , which have complementary CII observations f…