INTEGRAL observations of recurrent fast X-ray transient sources

By V. Sguera, E. Barlow, A. Bird, D. Clark, A. Dean, A. Hill, L. Moran, S. Shaw, D. Willis, A. Bazzano and 2 more. 2005

157 citations recorded by the source corpus.

Fast X-ray Transients (FXTs) are believed to be non-recurrent bright X-ray sources lasting less than a day and occuring at serendipitous positions, they can best be detected and discovered by instruments having a sufficiently wide field of view and high sensitivity. The IBIS/ISGRI instrument onboard INTEGRAL is particularly suited to detect new or already known fast X-ray transient sources. We report on IBIS/ISGRI detection of newly discovered outbursts of three fast transient sources located at low Galactic latitude: SAX J1818.6−1703; IGR J16479−4514; IGR J17391−302/XTE J1739−302. The reported results confirm and strengthen the very fast transient nature of these sources, given that all their newly detected outbursts have a duration less than ∼3 h. Additionally, they provide the first evidence for a possible recurrent fast transient behaviour as all three sources were detected in outburst by ISGRI more than once during the last 2 years.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a6535dc06cbe825492aa73ba29898a4fe4181271

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

L. Stella

Citations in the corpus

Are There Magnetars in High-Mass X-Ray Binaries? The Case of Supergiant Fast X-Ray Transients (2008, background): “…from minutes to hours, with peak X-ray luminosities between ∼1036 and 1037 erg s−1 (see e.g., González-Riestra et al. 2004; Sidoli et al. 2005; Grebenev & Sunyaev 2005; Lutovinov et al. 2005; Sguera et al. 2005; Masetti et al. 2006; Sguera et al. 2006; Götz et al. 2007; Sguera et al. 2007).”
High-mass X-ray binaries in the Milky Way (2013, background): “…were detected High-Mass X-ray Binaries in the Milky Way 65 with ASCA (Sakano et al., 2002), RXTE (Smith et al., 2006), INTEGRAL (Sunyaev et al., 2003a; Lutovinov et al., 2005b; Sguera et al., 2005, 2006b; Blay et al., 2008), and Swift /BAT (Sidoli et al., 2009a,c; Romano et al., 2009b, 2011b).”
Unveiling Supergiant Fast X-Ray Transient Sources with INTEGRAL (2006, background): “A Fourier analysis of the lightcurve in Figure 3 did not show any significant evidence of pulsations; however we note that the peaks are approximately separated by ∼ 2000 s; another outburst detected by IBIS on March 2003 also displayed this kind of characteristic (Sguera et al. 2005 ).”