Variability timescale and jet power of 3C 273

Jun Kataoka*, Nobuyuki Kawai

*Corresponding author for this work

Research output: Contribution to journalShort surveypeer-review

1 Citation (Scopus)


We present the results of a long-look monitoring of 3C 273 with RXTE between 1996 and 2000. A total of 230 observations amounts to a net exposure of 845 ks, with this spectral and variability analysis of 3C 273 covering the longest observation period available at hard X-ray energies. Our new observations imply that 3C 273 is a unique object whose hard X-ray emission occasionally contains a component which is not related to a beamed emission (Seyfert like), but most hard X-rays are likely to originate in inverse Compton radiation from the relativistic jet (blazar like). We consider the 'power balance' (both radiative and kinetic) between the accretion disk, sub-pc-scale jet, and the 10 kpc-scale jet.

Original languageEnglish
Pages (from-to)685-687
Number of pages3
JournalNew Astronomy Reviews
Issue number6-7
Publication statusPublished - 2003 Oct
Externally publishedYes


  • Quasars: individual (3C 273)
  • Radiation mechanisms: nonthermal

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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