Powerful quasars with young jets in multiâ€epoch radio surveys
In: Astronomische Nachrichten, 342(9-10), 1146-1150, (2021-11, 2021
academicJournal
Zugriff:
Energetic feedback driven by the large-scale (100's of kpc) lobes of classical radio galaxies is known to play an important role in shaping galaxy evolution. However, the prevalence of young and compact jets – and their impact on the interstellar medium – remains an open question. Multi-epoch radio surveys with cadences of years to decades offer a promising means of identifying even faint (mJy-level) jets that are compact and potentially young on the basis of variability. Recently, a comparison of images from the Very Large Array Sky Survey (VLASS) and the Faint Images of the Radio Sky at Twenty Centimeters (FIRST) survey has revealed a population of distant (0.2 < z < 3.2) quasars that have brightened dramatically in the past 1–2 decades. These quasars appear to have transitioned from "radio-quiet" nondetections in FIRST to "radio-loud" detections in VLASS. Extensive multiband follow-up observations with the VLA from 1 to 18 GHz have revealed compact (sub-kpc) radio sources that are consistent with young jets that were recently triggered. Here, we summarize the status of our on-going study of quasars with newborn jets identified in the radio time domain. ; © 2021 Wiley-VCH GmbH. Issue Online: 28 December 2021; Version of Record online: 25 November 2021; Manuscript accepted: 21 October 2021; Manuscript received: 20 October 2021. Funding information: 6.1 Base.
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Powerful quasars with young jets in multiâ€epoch radio surveys
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Autor/in / Beteiligte Person: | Nyland, Kristina ; Dong, Dillon Z. ; Patil, Pallavi ; Lacy, Mark ; Velzen, Sjoert ; Kimball, Amy E. ; Sarbadhicary, Sumit K. ; Hallinan, Gregg ; Baldassare, Vivienne ; Clarke, Tracy E. ; Goulding, Andy D. ; Greene, Jenny ; Hughes, Andrew ; Kassim, Namir ; Kunert-Bajraszewska, Magdalena ; Maccarone, Thomas J. ; Mooley, Kunal ; Mukherjee, Dipanjan ; Peters, Wendy ; Petrov, Leonid ; Polisensky, Emil ; Rujopakarn, Wiphu ; Whittle, Mark ; Vaccari, Mattia |
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Zeitschrift: | Astronomische Nachrichten, 342(9-10), 1146-1150, (2021-11, 2021 |
Veröffentlichung: | Wiley, 2021 |
Medientyp: | academicJournal |
DOI: | 10.1002/asna.20210058 |
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