Physical association and periodicity in quasar families with SDSS and 2MRS

Physical association and periodicity in quasar families with SDSS and 2MRS We have used the Sloan Digital Sky Survey (SDSS) data release 7 (DR7) and the 2MASS (Two Micron All Sky Survey) Redshift Survey (2MRS) K s ≤ 11.75 mag $K_{s} \le11.75~\mbox{mag}$ data release to test for physical association of candidate companion quasars with putative parent galaxies by virtue of Karlsson periodicity in quasar redshifts. We conducted this analysis using the quasar family detection algorithm described in Fulton and Arp (Astrophys. J. 754:134, 2012) and used therein to analyze the 2dF Galaxy Redshift Survey (2dFGRS) and the 2dF Quasar Redshift Survey (2QZ). The SDSS and 2MRS data sets confirm the 2dF results and allow us to examine additional object behaviors also at high significance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astrophysics and Space Science Springer Journals

Physical association and periodicity in quasar families with SDSS and 2MRS

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Publisher
Springer Netherlands
Copyright
Copyright © 2018 by Springer Science+Business Media B.V., part of Springer Nature
Subject
Physics; Astrophysics and Astroparticles; Astronomy, Observations and Techniques; Cosmology; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) ; Astrobiology
ISSN
0004-640X
eISSN
1572-946X
D.O.I.
10.1007/s10509-018-3355-5
Publisher site
See Article on Publisher Site

Abstract

We have used the Sloan Digital Sky Survey (SDSS) data release 7 (DR7) and the 2MASS (Two Micron All Sky Survey) Redshift Survey (2MRS) K s ≤ 11.75 mag $K_{s} \le11.75~\mbox{mag}$ data release to test for physical association of candidate companion quasars with putative parent galaxies by virtue of Karlsson periodicity in quasar redshifts. We conducted this analysis using the quasar family detection algorithm described in Fulton and Arp (Astrophys. J. 754:134, 2012) and used therein to analyze the 2dF Galaxy Redshift Survey (2dFGRS) and the 2dF Quasar Redshift Survey (2QZ). The SDSS and 2MRS data sets confirm the 2dF results and allow us to examine additional object behaviors also at high significance.

Journal

Astrophysics and Space ScienceSpringer Journals

Published: Jun 4, 2018

References

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