2000/08/11 by Hiroshi Sudou, H. Sudou, Yoshiaki Taniguchi +13 · 1 citation
Physics and Astronomy · #Acceleration #Active galactic nucleus #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Galaxy #Gyrotron and Vacuum Electronics Research #Jet (fluid) #Parsec #Physics #Radio Astronomy Observations and Technology #Radio galaxy #Relativistic beaming #Very Long Baseline Array #Very-long-baseline interferometry #X-shaped radio galaxy #astro-ph
paper · pdf · doi:10.1093/pasj/52.6.989
7 pages with 7 figures. To appear in PASJ, 52, No. 5, Oct. 25, 2000
arxiv created 2000/08/11 · openalex publication_date 2000/12/01 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract In order to investigate the genesis of a powerful radio jet, we have mapped the central 10 pc region of the nearby radio galaxy, NGC 6251, with a 0.2 pc resolution using Very Long Baseline Interferometer (VLBI) at two radio frequencies, 5 GHz and 15 GHz. We have found the sub-parsec-scale counterjet for the first time in this radio galaxy. This discovery allows us to investigate the jet acceleration based on the relativistic beaming model.