0000000000370295

AUTHOR

S. Geier

showing 4 related works from this author

The Gaia-ESO Public Spectroscopic Survey

2012

The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters, down to magnitude 19, systematically covering all the major components of the Milky Way. This survey will provide the first homogeneous overview of the distributions of kinematics and chemical element abundances in the Galaxy. The motivation, organisation and implementation of the Gaia-ESO Survey are described, emphasising the complementarity with the ESA Gaia mission. Spectra from the very first observing run of the survey are presented.

spectroscopy stars kinematics abundancesSettore FIS/05 - Astronomia E AstrofisicaAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
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The High A(V) Quasar Survey: Reddened quasi-stellar objects selected from optical/near-infrared photometry - II

2014

Quasi-stellar objects (QSOs) whose spectral energy distributions (SEDs) are reddened by dust either in their host galaxies or in intervening absorber galaxies are to a large degree missed by optical color selection criteria like the one used by the Sloan Digital Sky Survey (SDSS). To overcome this bias against red QSOs, we employ a combined optical and near-infrared color selection. In this paper, we present a spectroscopic follow-up campaign of a sample of red candidate QSOs which were selected from the SDSS and the UKIRT Infrared Deep Sky Survey (UKIDSS). The spectroscopic data and SDSS/UKIDSS photometry are supplemented by mid-infrared photometry from the Wide-field Infrared Survey Explo…

QSOSCosmology and Nongalactic Astrophysics (astro-ph.CO)media_common.quotation_subjectYoung stellar objectgalaxies: activeFOS: Physical sciencesgalaxies: active; quasars: absorption lines; quasars: general; Space and Planetary Science; Astronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesPhotometry (optics)quasars: general0103 physical sciencesAstrophysics::Solar and Stellar AstrophysicsLarge Magellanic CloudInstrumentation and Methods for Astrophysics (astro-ph.IM)010303 astronomy & astrophysicsAstrophysics::Galaxy Astrophysicsmedia_commonPhysics010308 nuclear & particles physicsAstronomy and AstrophysicsQuasarAstrophysics - Astrophysics of GalaxiesRedshiftGalaxyquasars: absorption linesSpace and Planetary ScienceSkyAstrophysics of Galaxies (astro-ph.GA)Astrophysics::Earth and Planetary AstrophysicsAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysics
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Spectroscopic Confirmation of an Ultramassive and Compact Galaxy at z = 3.35: a Detailed Look at an Early Progenitor of Local Giant Ellipticals

2014

et al.

PhysicsActive galactic nucleusStellar massStar formationAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics - Astrophysics of GalaxiesRedshiftGalaxyStarsSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)Elliptical galaxySpectral energy distributionAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Galaxy Astrophysics
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HAQ survey: red QSO candidates follow-up

2015

Quasi-stellar objects (QSOs) whose spectral energy distributions (SEDs) are reddened by dust either in their host galaxies or in intervening absorber galaxies are to a large degree missed by optical color selection criteria like the ones used by the Sloan Digital Sky Survey (SDSS). To overcome this bias against red QSOs, we employ a combined optical and near-infrared (near-IR) color selection. In this paper, we present a spectroscopic follow-up campaign of a sample of red candidate QSOs which were selected from the SDSS and the UKIRT Infrared Deep Sky Survey (UKIDSS). The spectroscopic data and SDSS/UKIDSS photometry are supplemented by mid-infrared photometry from the Wide-field Infrared S…

galactic and extragalactic astronomyAstrophysics and Astronomyhigh energy astrophysicsPhysicsAstrophysics::Cosmology and Extragalactic AstrophysicsExtinctionRedshiftedSurveysstellar astronomyCosmologyOptical astronomyobservational astronomyPhotometryAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsNatural SciencesSloan photometryQuasarsAstrophysics::Galaxy AstrophysicsSpectroscopy
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