2003/06/05 by Katherine M. Blundell, Katherine Blundell, A. J. Beasley +3 · 5 citations
Physics and Astronomy · #Active galactic nucleus #Astronomy #Astrophysical Phenomena and Observations #Astrophysical jet #Astrophysics #Astrophysics and Cosmic Phenomena #Emission spectrum #Galaxies: Formation, Evolution, Phenomena #Galaxy #Jet (fluid) #Line (geometry) #Physics #QUIET #Quasar #Radio galaxy #Relativistic beaming #Spectral line #astro-ph
paper · pdf · doi:10.1086/377295
published as Astrophys.J. 591 (2003) L103-L106 · 4 pages, uses emulateapj5.sty; accepted by ApJ Letters
arxiv created 2003/06/05 · openalex publication_date 2003/06/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present the results of a multiepoch radio monitoring campaign measuring the milliarcsecond structure of the jet in the radio-quiet quasar PG 1407+263. This is the highest sensitivity, highest resolution multiyear study of a distant active galaxy. The observations are naturally explained in terms of a beamed relativistic jet, some of whose fluctuations in flux density can be ascribed to interaction with the narrow-line region of the quasar. The optical properties of PG 1407+263, in particular the low equivalent widths of the emission lines, may be related to the fact that we are viewing this quasar almost pole-on, giving us a direct view into its broad-line region.