The Astrophysical Journal (Jan 2024)
The Radio Spectra of High-luminosity Compact Symmetric Objects: Implications for Studies of Compact Jetted Active Galactic Nuclei
- P. V. de la Parra,
- A. C. S Readhead,
- T. Herbig,
- S. Kiehlmann,
- M. L. Lister,
- V. Pavlidou,
- R. A. Reeves,
- A. Siemiginowska,
- A. G. Sullivan,
- T. Surti,
- A. Synani,
- K. Tassis,
- G. B. Taylor,
- P. N. Wilkinson,
- M. F. Aller,
- R. D. Blandford,
- N. Globus,
- C. R. Lawrence,
- B. Molina,
- S. O’Neill,
- T. J. Pearson
Affiliations
- P. V. de la Parra
- ORCiD
- CePIA, Astronomy Department, Universidad de Concepción , Casilla 160-C, Concepción, Chile ; [email protected]
- A. C. S Readhead
- ORCiD
- Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA; Institute of Astrophysics , Foundation for Research and Technology-Hellas, GR-70013 Heraklion, Greece
- T. Herbig
- TH Masters, LLC, 136 Chichester Road, New Canaan, CT 06840, USA
- S. Kiehlmann
- ORCiD
- Institute of Astrophysics , Foundation for Research and Technology-Hellas, GR-70013 Heraklion, Greece
- M. L. Lister
- ORCiD
- Department of Physics and Astronomy, Purdue University , 525 Northwestern Avenue, West Lafayette, IN 47907, USA
- V. Pavlidou
- 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 , 70013 Heraklion, Greece
- R. A. Reeves
- ORCiD
- CePIA, Astronomy Department, Universidad de Concepción , Casilla 160-C, Concepción, Chile ; [email protected]
- A. Siemiginowska
- ORCiD
- Center for Astrophysics∣Harvard and Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- A. G. Sullivan
- ORCiD
- Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics, Stanford University , Stanford, CA 94305, USA
- T. Surti
- Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA
- A. Synani
- ORCiD
- Department of Physics and Institute of Theoretical and Computational Physics, University of Crete , 70013 Heraklion, Greece
- 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 , 70013 Heraklion, Greece
- G. B. Taylor
- ORCiD
- Department of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA
- P. N. Wilkinson
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester M13 9PL, UK
- M. F. Aller
- ORCiD
- Department of Astronomy, University of Michigan , 323 West Hall, 1085 South University Avenue, Ann Arbor, MI 48109, USA
- R. D. Blandford
- ORCiD
- Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics, Stanford University , Stanford, CA 94305, USA
- N. Globus
- Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics, Stanford University , Stanford, CA 94305, USA
- C. R. Lawrence
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- B. Molina
- ORCiD
- CePIA, Astronomy Department, Universidad de Concepción , Casilla 160-C, Concepción, Chile ; [email protected]
- S. O’Neill
- ORCiD
- Department of Physics, Princeton University , Jadwin Hall, Princeton, NJ 08540, USA
- T. J. Pearson
- ORCiD
- Owens Valley Radio Observatory, California Institute of Technology , Pasadena, CA 91125, USA
- DOI
- https://doi.org/10.3847/1538-4357/ad89bb
- Journal volume & issue
-
Vol. 977,
no. 2
p. 195
Abstract
This paper addresses, for the first time, a key aspect of the phenomenology of compact symmetric objects (CSOs): the characteristics of their radio spectra. We present a radio-spectrum description of a complete sample of high-luminosity CSOs (CSO-2s), which shows that they exhibit the complete range of spectral types, including flat-spectrum sources ( α ≥ −0.5), steep-spectrum sources ( α −0.3.
Keywords
