Keivan G. Stassun

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We report the results from spectroscopic observations of 113 ultra-wide, low-mass binary systems, composed largely of M0–M3 dwarfs, from the SLoWPoKES catalog of common proper motion pairs identified in the Sloan Digital Sky Survey. Radial velocities of each binary member were used to confirm that they are co-moving and, consequently, to further validate(More)
We present the Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars (SLoWPoKES), a catalog of 1342 very-wide (projected separation 500 AU), low-mass (at least one mid-K – mid-M dwarf component) common proper motion pairs identified from astrometry, photometry, and proper motions in the Sloan Digital Sky Survey. A Monte Carlo based Galactic model is(More)
The Great Nebula in Carina provides an exceptional view into the violent massive star formation and feedback that typifies giant H ii regions and starburst galaxies. We have mapped the Carina star-forming complex in X-rays , using archival Chandra data and a mosaic of 20 new 60 ks pointings using the Chandra X-ray Observatory ' s Advanced CCD Imaging(More)
  • T G Beatty, J Pepper, R J Siverd, J D Eastman, A Bieryla, D W Latham +55 others
  • 2015
We report the discovery of KELT-2Ab, a hot Jupiter transiting the bright (V = 8.77) primary star of the HD 42176 binary system. The host is a slightly evolved late F-star likely in the very short-lived " blue-hook " stage of evolution, with T eff = 6148 ± 48 K, log g = 4.030
Filtergraph is a web application being developed by the Vanderbilt Initiative in Data-intensive Astrophysics (VIDA) to flexibly handle a large variety of astronomy datasets. While current datasets at Vanderbilt are being used to search for eclipsing binaries and extrasolar planets, this system can be easily reconfigured for a wide variety of data sources.(More)
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