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X-ray follow-ups of XSSJ12270-4859: a low-mass X-ray binary with gamma ray FERMI-LAT association
D. de Martino, T. Belloni, M. Falanga +10
XSSJ1227.0-4859 is a peculiar, hard X-ray source recently positionally associated to the Fermi-LAT source 1FGLJ1227.9-4852/2FGLJ1227.7-4853. Multi-wavelength observations have adde…
The accretion flow to the intermittent accreting ms pulsar, HETE J1900.1-2455, as observed by XMM-Newton and RXTE
A. Papitto, A. D'Aì, T. Di Salvo +6
We present a study of the accretion flow to the intermittent accreting millisecond pulsar, HETE J1900.1-2455, based on observations performed simultaneously by XMM-Newton and RXTE.…
Testing reflection features in 4U 1705-44 with XMM-Newton, BeppoSAX and RXTE in the hard and soft state
E. Egron, T. Di Salvo, S. Motta +10
We use data of the bright atoll source 4U 1705-44 taken with XMM-Newton, BeppoSAX and RXTE both in the hard and in the soft state to perform a self-consistent study of the reflecti…
INTEGRAL and Swift observations of the Be X-ray binary 4U 1036-56 (RX J1037.5-5647) and its possible relation with gamma-ray transients
Jian Li, Diego F. Torres, Shu Zhang +3
We present timing, spectral, and long-term temporal analysis of the high mass X-ray binary (HMXB) 4U 1036-56 using INTEGRAL and Swift observations. We show that it is a weak hard X…
X-ray spectroscopy of the ADC source X1822-371 with Chandra and XMM-Newton
R. Iaria, T. Di Salvo, A. D'Aì +5
The eclipsing low-mass X-ray binary X1822-371 is the prototype of the accretion disc corona (ADC) sources. We analyse two Chandra observations and one XMM-Newton observation to stu…
Possible changes of state and relevant timescales for a neutron star in LS I +61°303
Alessandro Papitto, Diego F. Torres, Nanda Rea
The properties of the short, energetic bursts recently observed from the gamma-ray binary LS I +61°303, are typical of those showed by high magnetic field neutron stars, and thus p…
INTEGRAL and Swift/XRT observations on IGR J18179-1621
J. Li, S. Zhang, D. F. Torres +3
IGR J18179-1621 is a hard X-ray binary transient discovered recently by INTEGRAL. Here we report on detailed timing and spectral analysis on IGR J18179-1621 in X-rays based on avai…
Detailed study of the X-ray and Optical/UV orbital ephemeris of X1822-371
R. Iaria, T. Di Salvo, L. Burderi +4
Recent studies of the optical/UV and X-ray ephemerides of X1822-371 have found some discrepancies in the value of the orbital period derivative. Because of the importance of this v…
Subarcsecond location of IGR J17480-2446 with Rossi XTE
A. Riggio, L. Burderi, T. Di Salvo +10
On 2010 October 13, the X-ray astronomical satellite Rossi XTE, during the observation of the newly discovered accretion powered X-ray pulsar IGR J17480--2446, detected a lunar occ…
A complete X-ray spectral coverage of the 2010 May-June outbursts of Circinus X-1
A. D'Aì, E. Bozzo, A. Papitto +6
Circinus X-1 is a neutron-star-accreting X-ray binary in a wide (P = 16.6 d), eccentric orbit. After two years of relatively low X-ray luminosity, in May 2010 Circinus…
The pulse profile and spin evolution of the accreting pulsar in Terzan 5, IGR J17480-2446, during its 2010 outburst
A. Papitto, T. Di Salvo, L. Burderi +9
(abridged) We analyse the spectral and pulse properties of the 11 Hz transient accreting pulsar, IGR J17480-2446, in the globular cluster Terzan 5, considering all the available RX…