54 citations · 371 across the 16 of their papers we have counts for
16 papers
Evidence of a non-conservative mass transfer for XTE J0929-314
A. Marino, T. Di Salvo, A. F. Gambino +5
Context. In 1998 the first accreting millisecond pulsar, SAX J1808.4-3658, was discovered and to date 18 systems showing coherent, high frequency (> 100 Hz) pulsations in low mass…
Updating the orbital ephemeris of the dipping source XB 1254-690 and the distance to the source
A. F. Gambino, R. Iaria, T. Di Salvo +5
XB 1254-690 is a dipping low mass X-ray binary system hosting a neutron star and showing type I X-ray bursts. We aim at obtaining more accurate orbital ephemeris and at constrainin…
An XMM-Newton and INTEGRAL view on the hard state of EXO 1745-248 during its 2015 outburst
M. Matranga, A. Papitto, T. Di Salvo +10
CONTEXT - Transient low-mass X-ray binaries (LMXBs) often show outbursts lasting typically a few-weeks and characterized by a high X-ray luminosity (…
A possible solution of the puzzling variation of the orbital period of MXB 1659-298
R. Iaria, A. F. Gambino, T. Di Salvo +6
MXB 1659-298 is a transient neutron star Low-Mass X-ray binary system that shows eclipses with a periodicity of 7.1 hr. The source went to outburst in August 2015 after 14 years of…
A re-analysis of the NuSTAR and XMM-Newton broad-band spectrum of Ser~X-1
M. Matranga, T. Di Salvo, R. Iaria +4
Context: Ser X-1 is a well studied LMXB which clearly shows a broad iron line. Recently, Miller et al. (2103) have presented broad-band, high quality NuSTAR data of SerX-1.Using re…
Study of the reflection spectrum of the LMXB 4U 1702-429
R. Iaria, T. Di Salvo, M. Del Santo +7
The source 4U 1702-429 (Ara X-1) is a low-mass X-ray binary system hosting a neutron star. Albeit the source is quite bright ( erg s) its broadband spectrum ha…
Timing of the accreting millisecond pulsar SAX J1748.9-2021 during its 2015 outburst
A. Sanna, L. Burderi, A. Riggio +6
We report on the timing analysis of the 2015 outburst of the intermittent accreting millisecond X-ray pulsar SAX J1748.9-2021 observed on March 4 by the X-ray satellite XMM-Newton.…
New orbital ephemerides for the dipping source 4U 1323-619: constraining the distance to the source
A. F. Gambino, R. Iaria, T. Di Salvo +6
4U 1323-619 is a low mass X-ray binary system that shows type I X-ray bursts and dips. The most accurate estimation of the orbital period is 2.941923(36) hrs and a distance from th…
Signature of the presence of a third body orbiting around XB 1916-053
R. Iaria, T. Di Salvo, A. F. Gambino +9
The ultra-compact dipping source \object{XB 1916-053} has an orbital period of close to 50 min and a companion star with a very low mass (less than 0.1 M). The orbital pe…
A possible cyclotron resonance scattering feature near 0.7 keV in X1822-371
R. Iaria, T. Di Salvo, M. Matranga +9
We analyse all available X-ray observations of X1822-371 made with XMM-Newton, Chandra, Suzaku and INTEGRAL satellites. The observations were not simultaneous. The Suzaku and INTEG…
GRO J1744-28: an intermediate B-field pulsar in a low mass X-ray binary
A. D'Aì, T. Di Salvo, R. Iaria +10
The bursting pulsar, GRO J1744-28, went again in outburst after 18 years of quiescence in mid-January 2014. We studied the broad-band, persistent, X-ray spectrum using X-ray…
Suzaku broad-band spectrum of 4U 1705-44: Probing the Reflection component in the hard state
T. Di Salvo, R. Iaria, M. Matranga +7
Iron emission lines at 6.4-6.97 keV, identified with Kalpha radiative transitions, are among the strongest discrete features in the X-ray band. These are one of the most powerful p…
Detection of accretion X-rays from QS Vir: cataclysmic or a lot of hot air?
Marco Matranga, Jeremy J. Drake, Vinay Kashyap +1
An XMM-Newton observation of the nearby "pre-cataclysmic" short-period (P_orb = 3.62 hr) binary QS Vir (EC 13471-1258) revealed regular narrow X-ray eclipses when the white dwarf p…
Close Binaries with Infrared Excess: Destroyers of Worlds?
M. Matranga, J. J. Drake, V. L. Kashyap +2
We present the results of a Spitzer photometric investigation into the IR excesses of close binary systems. In a sample of 10 objects, excesses in IRAC and MIPS24 bands implying th…
Line intensity enhancements in stellar coronal X-ray spectra due to opacity effects
S. J. Rose, M. Matranga, M. Mathioudakis +2
Context. The I(15.01 A)/I(16.78 A) emission line intensity ratio in Fe XVII has been reported to deviate from its theoretical value in solar and stellar X-ray spectra. This is attr…
Flare X-ray observations of AB Dor: evidence for Stellar Coronal Opacity
M. Matranga, M. Mathioudakis, H. R. M. Kay +1
X-ray spectra of the late-type star AB Dor, obtained with the XMM-Newton satellite are analysed. AB Dor was particularly active during the observations. An emission measure reconst…