TY - JOUR
T1 - Powerful quasars with young jets in multi-epoch radio surveys
AU - Nyland, Kristina
AU - Dong, Dillon Z.
AU - Patil, Pallavi
AU - Lacy, Mark
AU - van Velzen, Sjoert
AU - Kimball, Amy E.
AU - Sarbadhicary, Sumit K.
AU - Hallinan, Gregg
AU - Baldassare, Vivienne
AU - Clarke, Tracy E.
AU - Goulding, Andy D.
AU - Greene, Jenny
AU - Hughes, Andrew
AU - Kassim, Namir
AU - Kunert-Bajraszewska, Magdalena
AU - Maccarone, Thomas J.
AU - Mooley, Kunal
AU - Mukherjee, Dipanjan
AU - Peters, Wendy
AU - Petrov, Leonid
AU - Polisensky, Emil
AU - Rujopakarn, Wiphu
AU - Whittle, Mark
AU - Vaccari, Mattia
N1 - Funding Information:
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Basic research in radio astronomy at the U.S. Naval Research Laboratory is supported by 6.1 Base Funding.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/11/1
Y1 - 2021/11/1
N2 - 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 ((Formula presented.)) 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.
AB - 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 ((Formula presented.)) 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.
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U2 - 10.1002/asna.20210058
DO - 10.1002/asna.20210058
M3 - Article
AN - SCOPUS:85120871747
SN - 0004-6337
VL - 342
SP - 1146
EP - 1150
JO - Astronomische Nachrichten
JF - Astronomische Nachrichten
IS - 9-10
ER -