2012/10/16 by Victor Doroshenko, V. Doroshenko, A. Santangelo +2
Physics and Astronomy · #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #Pulsars and Gravitational Waves Research #astro-ph.HE
paper · pdf · doi:10.1051/0004-6361/201220085
4 pages 5 figures, accepted in A&A
arxiv created 2012/10/16 · openalex publication_date 2012/10/16 · arxiv updated 2012/10/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We have investigated the dipping activity observed in the high-mass X-ray binary 4U 1907+09 and shown that the source continues to pulsate in the “off” state, noting that the transition between the “on” and “off” states may be either dip-like or flare-like. This behavior may be explained in the framework of the “gated accretion” scenario proposed to explain the flares in supergiant fast X-ray transients (SFXTs). We conclude that 4U 1907 + 09 might prove to be a missing link between the SFXTs and ordinary accreting pulsars.