2012/10/03 by Jian Li, Diego F. Torres, D. F. Torres +5 · 12 citations
Mathematics · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Binary number #Computer science #Galaxy #Gamma-ray bursts and supernovae #High mass #Luminosity #Mathematics #Neutron star #Nuclear physics #Physics #Pulsars and Gravitational Waves Research #Swift #Transient (computer programming) #X-ray #X-ray binary #astro-ph.HE
paper · pdf · doi:10.1088/0004-637x/761/1/49
published in The Astrophysical Journal 761(1), 49 (IOP Publishing) · 21 pages, 6 figures; Accepted for publication in ApJ
arxiv created 2012/10/03 · openalex publication_date 2012/11/21 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present timing, spectral, and long-term temporal analysis of the high-mass X-ray binary 4U 1036−56 using INTEGRAL and Swift observations. We show that it is a weak hard X-ray source spending a major fraction of the time in quiescence and only occasionally characterized by X-ray outbursts. The outburst activity we report here lasts several days, with a dynamic range spanned by the luminosity in quiescence and in outburst as high as ∼30. We report the detection of pulse period at 854.75 ± 4.39 s during an outburst, which is consistent with previous measurements. Finally, we analyze the possibility of the association of 4U 1036−56 with the unidentified transient γ-ray sources AGL J1037−5708 and GRO J1036−55, as prompted by its positional correlation.