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The 100-month Swift catalogue of supergiant fast X-ray transients II. SFXT diagnostics from outburst properties
Romano P., Evans P. A., Bozzo E. +9
Supergiant Fast X-ray Transients (SFXT) are High Mass X-ray Binaries displaying X-ray outbursts reaching peak luminosities of 10 erg/s and spend most of their life in more q…
Giant outburst from the supergiant fast X-ray transient IGR J17544-2619: accretion from a transient disc?
P. Romano, E. Bozzo, V. Mangano +7
Supergiant fast X-ray transients (SFXTs) are high mass X-ray binaries associated with OB supergiant companions and characterised by an X-ray flaring behaviour whose dynamical range…
Probing the emission physics and weak/soft population of Gamma-Ray Bursts with LOFT
L. Amati, G. Stratta, J. -L. Atteia +36
This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT f…
Soft X-ray characterisation of the long term properties of Supergiant Fast X-ray Transients
P. Romano, L. Ducci, V. Mangano +3
We perform the first high-sensitivity soft X-ray long-term monitoring with Swift/XRT of three relatively unexplored Supergiant Fast X-ray Transients (SFXTs), IGR J08408-4503, IGR J…
The 100-month Swift catalogue of supergiant fast X-ray transients I. BAT on-board and transient monitor flares
P. Romano, H. A. Krimm, D. M. Palmer +10
We investigate the characteristics of bright flares for a sample of supergiant fast X-ray transients and their relation to the orbital phase. We have retrieved all Swift/BAT Transi…
Broadband monitoring tracing the evolution of the jet and disk in the black hole candidate X-ray binary MAXI J1659-152
A. J. van der Horst, P. A. Curran, J. C. A. Miller-Jones +31
MAXI J1659-152 was discovered on 2010 September 25 as a new X-ray transient, initially identified as a gamma-ray burst, but was later shown to be a new X-ray binary with a black ho…
Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +875
Long gamma-ray bursts (GRBs) have been linked to extreme core-collapse supernovae from massive stars. Gravitational waves (GW) offer a probe of the physics behind long GRBs. We inv…
The Swift Supergiant Fast X-ray Transients Project: a review, new results, and future perspectives
P. Romano, V. Mangano, L. Ducci +9
We present a review of the Supergiant Fast X-ray Transients (SFXT) Project, a systematic investigation of the properties of SFXTs with a strategy that combines Swift monitoring pro…
The ASTRI Mini-Array Science Case
S. Vercellone, G. Agnetta, L. A. Antonelli +77
ASTRI is a Flagship Project financed by the Italian Ministry of Education, University and Research, and led by INAF, the Italian National Institute of Astrophysics. Within this fra…
Swift/XRT orbital monitoring of the candidate supergiant fast X-ray transient IGR J17354-3255
L. Ducci, P. Romano, P. Esposito +5
We report on the Swift/X-ray Telescope (XRT) monitoring of the field of view around the candidate supergiant fast X-ray transient (SFXT) IGR J17354-3255, which is positionally asso…
Observations of Supergiant Fast X-ray Transients with LOFT
E. Bozzo, P. Romano, C. Ferrigno +2
Supergiant Fast X-ray transients are a subclass of high mass X-ray binaries displaying a peculiar and still poorly understood extreme variability in the X-ray domain. These sources…
Swift monitoring of IGR J16418-4532
P. Esposito, P. Romano, V. Mangano +2
We report on the Swift observations of the candidate supergiant fast X-ray transient (SFXT) IGR J16418-4532, which has an orbital period of ~3.7 d. Our monitoring, for a total of ~…
Investigating Supergiant Fast X-ray Transients with LOFT
P. Romano, E. Bozzo, P. Esposito +2
Supergiant Fast X-ray Transients (SFXT) are a class of High-Mass X-ray Binaries whose optical counterparts are O or B supergiant stars, and whose X-ray outbursts are ~ 4 orders of…
The prompt-afterglow connection in Gamma-Ray Bursts: a comprehensive statistical analysis of Swift X-ray light-curves
R. Margutti, E. Zaninoni, M. G. Bernardini +20
We present a comprehensive statistical analysis of Swift X-ray light-curves of Gamma-Ray Bursts (GRBs) collecting data from more than 650 GRBs discovered by Swift and other facilit…
Properties of Supergiant Fast X-ray Transients as observed by Swift
P. Romano, S. Vercellone, H. A. Krimm +8
We present the most recent results from our investigation on Supergiant Fast X-ray Transients, a class of High-Mass X-ray Binaries, with a possible counterpart in the gamma-ray ene…
Swift/XRT monitoring of the candidate Supergiant Fast X-ray Transient IGR J16418-4532
P. Romano, V. Mangano, L. Ducci +6
We report on the Swift monitoring of the candidate supergiant fast X-ray transient (SFXT) IGR J16418-4532, for which both orbital and spin periods are known (~3.7d and ~1250s, resp…
Swift Observations of MAXI J1659-152: A Compact Binary with a Black Hole Accretor
J. A. Kennea, P. Romano, V. Mangano +6
We report on the detection and follow-up high cadence monitoring observations of MAXI J1659-152, a bright Galactic X-ray binary transient with a likely black-hole accretor, by Swif…
Discovery of the Onset of Rapid Accretion by a Dormant Massive Black Hole
D. N. Burrows, J. A. Kennea, G. Ghisellini +53
Massive black holes are believed to reside at the centres of most galaxies. They can be- come detectable by accretion of matter, either continuously from a large gas reservoir or i…
The Swift Supergiant Fast X-ray Transients Project: recent results
P. Romano, S. Vercellone, V. La Parola +8
We present an overview of our Supergiant Fast X-ray Transients (SFXT) project, that started in 2007, by highlighting the unique observational contribution Swift is giving to this e…
Swift Follow-up Observations of MAXI Discovered Galactic Transients
J. A. Kennea, P. Romano, V. Mangano +5
We describe the results of the first year of a program to localize new Galactic Transient sources discovered by MAXI with NASA's Swift mission. Swift is ideally suited for follow-u…
Confirmation of the Supergiant Fast X-ray Transient nature of AX J1841.0-0536 from Swift outburst observations
P. Romano, V. Mangano, G. Cusumano +8
Swift observed an outburst from the supergiant fast X-ray transients (SFXT) AX J1841.0-0536 on 2010 June 5, and followed it with XRT for 11 days. The X-ray light curve shows an ini…
Supergiant fast X-ray transients: the Swift monitoring program
P. Romano, L. Sidoli, G. Cusumano +10
For the first time, Swift is giving us the opportunity to study supergiant fast X-ray transients (SFXTs) throughout all phases of their life: outbursts, intermediate level, and qui…
The Swift SFXT monitoring campaign: the IGR J16479-4514 outburst in 2009
V. La Parola, L. Ducci, P. Romano +8
IGR J16479-4514 is a member of the Supergiant Fast X-ray transient (SFXT) class. We present the light curves of its latest outburst, which occurred on January 29, 2009. During this…
New results with Swift on Supergiant Fast X-ray Transients
L. Sidoli, P. Romano, L. Ducci +11
We report here on the most recent results obtained on a new class of High Mass X-ray Binaries, the Supergiant Fast X-ray Transients. Since October 2007, we have been performing a m…