2004/06/11 by Sabyasachi Pal, Sandip K. Chakrabarti · 1 citation
Engineering · Physics and Astronomy · #Astrophysical Phenomena and Observations #Mechanics and Biomechanics Studies #Pulsars and Gravitational Waves Research #astro-ph
paper · pdf · doi:10.1051/0004-6361:20034569
published as Astron.Astrophys. 421 (2004) 13 · 3 pages 1 figure
openalex publication_date 2004/06/11 · arxiv created 2005/01/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Our recent radio observation using the Giant Meter Radio Telescope (GMRT) of the galactic black hole transient A0620-00 at 1.280 GHz revealed a micro-flare of a few milli-Jansky. Assuming an equipartition of magnetic energy and the gravitational potential energy of accreting matter, it is possible to estimate the upper limit of the accretion rate. Assuming a black hole mass of residing at the center, we find this to be at most yr-1. This is consistent with earlier estimates of accretion rates based on optical and X-ray observations.