2000/11/20 by J. M. Marr, G. B. Taylor, F. Crawford · 4 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Pulsars and Gravitational Waves Research #Radio Astronomy Observations and Technology #astro-ph
paper · pdf · doi:10.1086/319729
published as Astrophys.J.550:160-171,2001 · 13 pages, including 8 figures and 3 tables. Accepted for publication in ApJ
arxiv created 2000/11/20 · openalex publication_date 2001/03/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We have observed the canonical gigahertz-peaked spectrum source 0108+388 with the Very Long Baseline Array at a range of frequencies above and below the spectral peak. The activity that dominates the radio emission from 0108+388, which is also classified as a compact symmetric object, is thought to be less than 1000 years old. We present strong evidence that the spectral turnover in 0108+388 results from free-free absorption by nonuniform gas, possibly in the form of a disk in the central tens of parsecs.