Papers

Peer-reviewed
Jun 25, 2013

Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020 4320: Recently Restarted Jet Activity?

Publications of the Astronomical Society of Japan
  • Akihiro Doi
  • Yasuhiro Murata
  • Nanako Mochizuki
  • Hiroshi Takeuchi
  • Keiichi Asada
  • Takayuki J. Hayashi
  • Hiroshi Nagai
  • Katsunori M. Shibata
  • Tomoaki Oyama
  • Takaaki Jike
  • Kenta Fujisawa
  • Koichiro Sugiyama
  • Hideo Ogawa
  • Kimihiro Kimura
  • Mareki Honma
  • Hideyuki Kobayashi
  • Shoka Koyama
  • Display all

Volume
65
Number
3
First page
57
Last page
57
Language
Publishing type
Research paper (scientific journal)
DOI
10.1093/pasj/65.3.57
Publisher
Oxford University Press (OUP)

This paper reports on very-long-baseline interferometry observations of the radio-loud broad absorption line (BAL) quasar J1020+4320 at 1.7, 2.3, 6.7, and 8.4 GHz using the Japanese VLBI network (JVN) and European VLBI network (EVN). The radio morphology is compact with a size of -10 pc. The convex radio spectrum has been stable over the last decade; an observed peak frequency of 3.2 GHz is equivalent to 9.5 GHz in the rest frame, suggesting an age on the order of -100 years as a radio source, according to an observed correlation between the linear size and the peak frequency of compact steep spectrum (CSS) and giga-hertz peaked spectrum (GPS) radio sources. A low-frequency radio excess suggests a relic of past jet activity. J1020+4320 may be one of the quasars with recurrent and short-lived jet activity during a BAL-outflowing phase. © 2013. Astronomical Society of Japan.

Link information
DOI
https://doi.org/10.1093/pasj/65.3.57
URL
http://academic.oup.com/pasj/article-pdf/65/3/57/17457051/pasj65-0057.pdf
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879988148&origin=inward Open access
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84879988148&origin=inward
ID information
  • DOI : 10.1093/pasj/65.3.57
  • ISSN : 0004-6264
  • eISSN : 2053-051X
  • SCOPUS ID : 84879988148

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