1998/02/24 by K. Otterbein, T. P. Krichbaum, Otterbein, K. +11
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #Gamma-ray bursts and supernovae #Radio Astronomy Observations and Technology #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9802316
9 pages, 9 figures, accepted for publication in A&A main journal
arxiv created 1998/02/24 · openalex publication_date 1998/02/24 · arxiv updated 2009/12/01 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
Broad-band (gamma to radio) variations of the flux density were observed in\nthe first half of 1992 in the luminous high redshift (z = 2.172) quasar S5\n0836+710. VLBI monitoring observations during 1993 -- 1996 performed at 86 GHz,\n22 GHz, 15 GHz, and 8 GHz show the ejection of a new jet component, which most\nprobably is directly related to a quasi simultaneous gamma-, X-ray, optical\nflaring activity which was observed in February 1992. During the period 1992 --\n1993 the flaring propagated through the radio spectrum. From several\nquasi-simultaneous radio spectra taken during this phase of activity, we\ndetermine the time evolution of the spectral turnover of the radio spectrum in\nthe Sm-\νm diagram. The data indicate a correlation of the jet activity with\nthe variability of the broad-band electromagnetic spectrum of the source. The\nobservational findings are discussed in the framework of relativistic shock\nmodels.\n