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Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2

Authors :
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)
Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Source :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 644, pp.A17. ⟨10.1051/0004-6361/202039262⟩, Heintz, K E, Fynbo, J P U, Geier, S J, Moller, P, Krogager, J-K, Konstantopoulou, C, de Burgos, A, Christensen, L, Steinhardt, C L, Milvang-Jensen, B, Jakobsson, P, Hog, E, Arvedlund, B E H K, Christiansen, C R, Hansen, T B, Henriksen, P D, Kuszon, K B, McKenzie, I B, Mosekjaer, K A, Paulsen, M F K, Sukstorf, M N, Wilson, S N & Orgaard, S K K 2020, ' Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2 ', Astronomy & Astrophysics, vol. 644, A17 . https://doi.org/10.1051/0004-6361/202039262
Publication Year :
2020

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<br />Comment: Accepted for publication in A&A. Abstract abridged

Subjects

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

Details

Language :
English
ISSN :
00046361
Database :
OpenAIRE
Journal :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 644, pp.A17. ⟨10.1051/0004-6361/202039262⟩, Heintz, K E, Fynbo, J P U, Geier, S J, Moller, P, Krogager, J-K, Konstantopoulou, C, de Burgos, A, Christensen, L, Steinhardt, C L, Milvang-Jensen, B, Jakobsson, P, Hog, E, Arvedlund, B E H K, Christiansen, C R, Hansen, T B, Henriksen, P D, Kuszon, K B, McKenzie, I B, Mosekjaer, K A, Paulsen, M F K, Sukstorf, M N, Wilson, S N & Orgaard, S K K 2020, ' Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2 ', Astronomy & Astrophysics, vol. 644, A17 . https://doi.org/10.1051/0004-6361/202039262
Accession number :
edsair.doi.dedup.....4c08d52d4cb6065ce1824bae8b49656e
Full Text :
https://doi.org/10.1051/0004-6361/202039262⟩
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