1. Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2
- Author
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Bo Milvang-Jensen, Pall Jakobsson, Erik Høg, Palle Møller, C. Konstantopoulou, Johan P. U. Fynbo, C. R. Christiansen, S. K. K. Ørgaard, S. N. Wilson, M. F. K. Paulsen, P. D. Henriksen, K. B. Kuszon, Lars Lindberg Christensen, K. A. Mosekjær, S. Geier, B. E. H. K. Arvedlund, Charles L. Steinhardt, Kasper E. Heintz, I. B. McKenzie, A. de Burgos, M. N. Sukstorf, Torben Hansen, J.-K. Krogager, Institut d'Astrophysique de Paris (IAP), and Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Extinction (astronomy) ,Population ,FOS: Physical sciences ,DUST ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,STAR-FORMATION ,ABUNDANCES ,TARGET SELECTION ,quasars: general ,0103 physical sciences ,AGN ,education ,010303 astronomy & astrophysics ,POPULATION ,Astrophysics::Galaxy Astrophysics ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,education.field_of_study ,general [quasars] ,010308 nuclear & particles physics ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy and Astrophysics ,Quasar ,Astrometry ,Astrophysics - Astrophysics of Galaxies ,GRAVITATIONALLY LENSED QUASARS ,Galaxy ,Stars ,Space and Planetary Science ,Limiting magnitude ,Astrophysics of Galaxies (astro-ph.GA) ,Magnitude (astronomy) ,DIGITAL SKY SURVEY ,astrometry ,HIGH REDSHIFTS ,Astrophysics::Earth and Planetary Astrophysics ,ENRICHMENT ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
Here we explore the efficiency and fidelity of a purely astrometric selection of quasars as point sources with zero proper motions in the {\it Gaia} data release 2 (DR2). We have built a complete candidate sample including 104 Gaia-DR2 point sources brighter than $G, Comment: Accepted for publication in A&A. Abstract abridged
- Published
- 2020
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