RadioSED – II. Discovering the peaked spectrum radio sources in Stripe 82
ABSTRACT This paper is the second in a series presenting RadioSED, a Bayesian inference framework for constructing, modelling, and classifying radio spectral energy distributions from publicly available surveys. We focus here on the application of our framework to the Sloan Digital Sky Survey Stripe 82 field. Not only do we recover all eleven previously published peaked spectrum sources from the literature within this region, but we increase the number of known peaked spectrum sources here by more than an order of magnitude. We investigate the variability properties of our peaked spectrum sample, and find that overall they exhibit a low degree of variability, consistent with previous samples of peaked spectrum active galactic nuclei. The multiwavelength properties of these sources reveal that we have selected a population comprising largely distant ($z \ge 1$), powerful active galaxies. We find that the most compact jets are located preferentially in quasar-type hosts, with galaxy-type hosts home to slightly more extended radio structures. We discuss these findings in the context of current and forthcoming large area radio surveys.
Authors
- Laura Driessen (ORCID: https://orcid.org/0000-0002-4405-3273)
- K. Rose (ORCID: https://orcid.org/0000-0002-7329-3209)
- Kathryn Ross (ORCID: https://orcid.org/0000-0002-8666-6588)
- Vanessa A. Moss (ORCID: https://orcid.org/0000-0002-3005-9738)
- E. K. Mahony (ORCID: https://orcid.org/0000-0002-5053-2828)
- E. M. Sadler (ORCID: https://orcid.org/0000-0002-1136-2555)
- Emily F. Kerrison (ORCID: https://orcid.org/0000-0002-0011-6922)
- Dougal Dobie (ORCID: https://orcid.org/0000-0003-0699-7019)
- Tara Murphy
Institutions
- Commonwealth Scientific and Industrial Research Organisation (AU)
- The University of Sydney (AU)
- Curtin University (AU)
- ARC Centre of Excellence for Gravitational Wave Discovery (AU)
- Astronomy and Space (AU)
- ARC Centre of Excellence for All-sky Astrophysics (AU)
- International Centre for Radio Astronomy Research (AU)
Publication Details
- Journal
- Monthly Notices of the Royal Astronomical Society
- Published
- 2025-09-27
- DOI
- https://doi.org/10.1093/mnras/staf1643
- Primary Topic
- Solar and Space Plasma Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- U.S. Department of Energy
- National Aeronautics and Space Administration
- California Institute of Technology
- Australian Government
- Office of Science
- Jet Propulsion Laboratory
- University of California, Los Angeles
- Division of Astronomical Sciences
- Lawrence Berkeley National Laboratory