S
Stephanie A. Snedden
Researcher at Apache Corporation
Publications - 156
Citations - 55863
Stephanie A. Snedden is an academic researcher from Apache Corporation. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 86, co-authored 156 publications receiving 52683 citations. Previous affiliations of Stephanie A. Snedden include University of Nebraska–Lincoln & Apollo Global Management.
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Journal ArticleDOI
A quasar without broad Lyα emission
Patrick B. Hall,Patrick B. Hall,Stephanie A. Snedden,Martin Niederste-Ostholt,Daniel J. Eisenstein,Michael A. Strauss,Donald G. York,Donald P. Schneider +7 more
TL;DR: In this paper, the spectrum of SDSS J095253.83+011421.9 appears unique (among 3600 sDSS spectra of quasars at z > 2.12) because of some combination of unusual parameters, and possible observations to determine the combination of circumstances responsible for the spectrum.
Journal ArticleDOI
A Cautionary Tale: MARVELS Brown Dwarf Candidate Reveals Itself To Be A Very Long Period, Highly Eccentric Spectroscopic Stellar Binary
Claude E. Mack,Jian Ge,Rohit Deshpande,John P. Wisniewski,Keivan G. Stassun,B. Scott Gaudi,Scott W. Fleming,Suvrath Mahadevan,Nathan De Lee,Jason D. Eastman,Luan Ghezzi,Jonay I. González Hernández,Bruno Femenia,Leticia D. Ferreira,Gustavo F. Porto de Mello,Justin R. Crepp,Daniel Mata Sánchez,Eric Agol,Thomas G. Beatty,Dmitry Bizyaev,Howard Brewington,Phillip Cargile,Luiz N. da Costa,Massimiliano Esposito,G. Ebelke,Leslie Hebb,Peng Jiang,Stephen R. Kane,Brian C. Lee,Marcio A. G. Maia,Elena Malanushenko,V. Malanushenko,Daniel Oravetz,Martin Paegert,Kaike Pan,Carlos Allende Prieto,Joshua Peper,Rafael Rebolo,Arpita Roy,Basilio X. Santiago,Donald P. Schneider,Audrey Simmons,Robert J. Siverd,Stephanie A. Snedden,Benjamin M. Tofflemire +44 more
TL;DR: In this article, the authors reported the discovery of a highly eccentric, double-lined spectroscopic binary star system (TYC 3010-1494-1), comprising two solar-type stars that were initially identified as a single star with a brown dwarf companion.
Proceedings ArticleDOI
Mass-producing spectra: the SDSS spectrographic system
Peter R. Newman,D. Long,Stephanie A. Snedden,S. J. Kleinman,Atsuko Nitta,Michael Harvanek,Jurek Krzesinski,Jurek Krzesinski,Howard Brewington,J. C. Barentine,Eric H. Neilsen,David J. Schlegel +11 more
TL;DR: In this article, the authors describe the systems surrounding the dual fibre-input spectrographs that obtain all the survey spectra and that are capable of recording 5,760 individual spectra per night on an industrial, consistent, mass-production basis.
Journal ArticleDOI
Hubble Space Telescope Ultraviolet Spectroscopy of 14 Low-Redshift Quasars
Rajib Ganguly,Michael S. Brotherton,Nahum Arav,Sara R. Heap,Lutz Wisotzki,Thomas L. Aldcroft,Danielle Alloin,Danielle Alloin,Ehud Behar,Gabriela Canalizo,D. Michael Crenshaw,Martijn de Kool,K. C. Chambers,Gerald Cecil,E. Chatzichristou,John E. Everett,John E. Everett,Jack R. Gabel,C. Martin Gaskell,Emmanuel Galliano,Richard F. Green,Patrick B. Hall,Dean C. Hines,Vesa T. Junkkarinen,Jelle Kaastra,Mary Elizabeth Kaiser,Demosthenes Kazanas,Arieh Königl,Kirk T. Korista,Gerard A. Kriss,Ari Laor,Karen M. Leighly,Smita Mathur,Patrick Ogle,Daniel Proga,Bassem M. Sabra,Ran Sivron,Stephanie A. Snedden,Randal C. Telfer,Marianne Vestergaard +39 more
TL;DR: In this paper, the authors presented low-resolution ultraviolet spectra of 14 low-redshift (z ≲ 0.8) quasars observed with the Hubble Space Telescope STIS as part of a Snapshot project to understand the relationship between quasar outflows and luminosity.
Journal ArticleDOI
A Quasar Without Broad Lyman-alpha Emission
Patrick B. Hall,Stephanie A. Snedden,Martin Niederste-Ostholt,Daniel J. Eisenstein,Michael A. Strauss,Donald G. York,Donald P. Schneider +6 more
TL;DR: In this paper, the spectrum of SDSS J095253.83+011421.02 quasar at z>2.12 was analyzed and the authors concluded that the spectrum was unique (among ~3600 SDSs spectra of quasars at z > 2.12) because of some combination of unusual parameters.