2009/06/04 by E. Bozzo, A. Giunta, L. Stella +3 · 1 citation
Physics and Astronomy · #Accretion (finance) #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #High mass #Neutron star #Pulsars and Gravitational Waves Research #Spectral line #Supergiant #Transient (computer programming) #astro-ph.GA #astro-ph.HE
paper · pdf · doi:10.1051/0004-6361/200912131
Accepted for publication in A&A
arxiv created 2009/06/04 · openalex publication_date 2009/06/15 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
<i>Aims. <i/> The supergiant fast X-ray transient source IGR J16479-4514 was observed in outburst two times with <i>Swift<i/>. Its quiescent state was investigated in-depth only once in 2008 through a relatively long pointed observation with <i>XMM-Newton<i/>. The latter observation was taken about 1.7 days after the outburst in 2008, and showed an X-ray eclipse-like event, likely caused by the supergiant companion. At present, this is the only supergiant fast X-ray transient that displayed an evidence for an X-ray eclipse.<i>Methods. <i/>Here we carry out a comparison between the most recent outburst of IGR J16479-4514, caught by <i>Swift<i/> on 29 January 2009 and those detected previously from this source.<i>Results. <i/>The decay from the outbursts in 2005, 2008 and 2009 presents many similarities, and suggests a common mechanism that modulates the mass accretion rate onto the neutron star in IGR J16479-4514.