Compact Symmetric Objects. II. Confirmation of a Distinct Population of High-luminosity Jetted Active Galaxies

S. Kiehlmann; A. C. S. Readhead; S. O’Neill; P. N. Wilkinson; M. L. Lister; I. Liodakis; S. Bruzewski; V. Pavlidou; T. J. Pearson; E. Sheldahl; A. Siemiginowska; K. Tassis; G. B. Taylor

doi:10.3847/1538-4357/ad0cc2

The Astrophysical Journal (Jan 2024)

Compact Symmetric Objects. II. Confirmation of a Distinct Population of High-luminosity Jetted Active Galaxies

S. Kiehlmann,
A. C. S. Readhead,
S. O’Neill,
P. N. Wilkinson,
M. L. Lister,
I. Liodakis,
S. Bruzewski,
V. Pavlidou,
T. J. Pearson,
E. Sheldahl,
A. Siemiginowska,
K. Tassis,
G. B. Taylor

Affiliations

S. Kiehlmann: ORCiD; Institute of Astrophysics, Foundation for Research and Technology-Hellas , GR-70013 Heraklion, Greece
A. C. S. Readhead: ORCiD; Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA ; [email protected]
S. O’Neill: Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA ; [email protected]
P. N. Wilkinson: Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK
M. L. Lister: ORCiD; Department of Physics and Astronomy, Purdue University , 525 Northwestern Avenue, West Lafayette, IN 47907, USA
I. Liodakis: Finnish Center for Astronomy with ESO, University of Turku , Vesilinnantie 5, FI-20014, Finland; Department of Physics, University of Crete , GR-70013 Heraklion, Greece
S. Bruzewski: ORCiD; Department of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA
V. Pavlidou: Institute of Astrophysics, Foundation for Research and Technology-Hellas , GR-70013 Heraklion, Greece; Department of Physics and Institute of Theoretical and Computational Physics, University of Crete , GR-70013 Heraklion, Greece
T. J. Pearson: ORCiD; Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA ; [email protected]
E. Sheldahl: Department of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA
A. Siemiginowska: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
K. Tassis: ORCiD; Institute of Astrophysics, Foundation for Research and Technology-Hellas , GR-70013 Heraklion, Greece; Department of Physics and Institute of Theoretical and Computational Physics, University of Crete , GR-70013 Heraklion, Greece
G. B. Taylor: ORCiD; Department of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA

DOI: https://doi.org/10.3847/1538-4357/ad0cc2
Journal volume & issue: Vol. 961, no. 2
p. 241

Abstract

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Compact symmetric objects (CSOs) are compact (99%) of CSO 2s do not evolve into larger-scale radio sources. These CSO 2s belong to a distinct population of jetted AGN, which should be characterized as “short-lived,” as opposed to “young,” compared to the classes of larger jetted AGN. We show that there is a sharp upper cutoff in the CSO 2 size distribution at ≈500 pc. The distinct differences between most CSO 2s and other jetted AGN provides a crucial new time domain window on the formation and evolution of relativistic jets in AGN and the supermassive black holes that drive them.

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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