63 citations · 662 across the 34 of their papers we have counts for
34 papers
Observatory Science with eXTP
Ping Zhou, Jirong Mao, Liang Zhang +97
Scheduled for launch in 2030, the enhanced X-ray Timing and Polarization (eXTP) telescope is a Chinese space-based mission aimed at studying extreme conditions and phenomena in ast…
Spectral analysis of the AMXP IGR J17591-2342 during its 2018 outburst
A. Manca, A. F. Gambino, A. Sanna +9
The Accreting Millisecond X-ray Pulsar IGR J17591-2342 is a LMXB system that went in outburst on August 2018 and it was monitored by the NICER observatory and partially by other fa…
Spectral analysis of the low-mass X-ray pulsar 4U 1822-371: Reflection component in a high-inclination system
A. Anitra, T. Di Salvo, R. Iaria +6
The X-ray source 4U 1822-371 is an eclipsing low-mass X-ray binary and X-ray pulsar, hosting a NS that shows periodic pulsations in the X-ray band. The inclination angle of the sys…
Fe K and Fe K line detection in the NuSTAR spectrum of the ultra-bright Z-source Scorpius X-1
S. M. Mazzola, R. Iaria, T. Di Salvo +8
Low-mass X-ray binaries hosting a low-magnetised neutron star, which accretes matter via Roche-lobe overflow, are generally grouped in two classes, named Atoll and Z sources after…
A note on some discrepancies in convolution models in X-ray spectral analysis
Riccardo La Placa, Angelo Gambino
Convolution models are powerful tools in many fields of spectral and image analysis owing to their wide applicability, and X-ray astrophysical spectral analysis is no exception. We…
Timing techniques applied to distributed modular high-energy astronomy: the HERMES project
A. Sanna, A. F. Gambino, L. Burderi +15
The HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites -- Technologic and Scientific Pathfinder) is an in-orbit demonstration of the so-called distributed astronomy con…
The HERMES-Technologic and Scientific Pathfinder
F. Fiore, L. Burderi, M. Lavagna +12
HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites Technologic and Scientific Pathfinder) is a constellation of six 3U nano-satellites hosting simple but innovative X-r…
The scientific payload on-board the HERMES-TP and HERMES-SP CubeSat missions
Y. Evangelista, F. Fiore, F. Fuschino +22
HERMES (High Energy Rapid Modular Ensemble of Satellites) Technological and Scientific pathfinder is a space borne mission based on a LEO constellation of nano-satellites. The 3U C…
Evidence of a non-conservative mass transfer in the ultra-compact X-ray source XB 1916-053
R. Iaria, A. Sanna, T. Di Salvo +5
The dipping source XB 1916-053 is a compact binary system with an orbital period of 50 min harboring a neutron star. Using ten new {\it Chandra} observations and one {\it Swift/XRT…
Reflection component in the Bright Atoll Source GX 9+9
R. Iaria, S. M. Mazzola, T. Di Salvo +5
GX 9+9 (4U 1728-16) is a low mass X-ray binary (LMXB) source harboring a neutron star. Although it belongs to the subclass of the bright Atoll sources together with GX 9+1, GX 3+1,…
Timing of the accreting millisecond pulsar IGR J17591-2342: evidence of spin-down during accretion
A. Sanna, L. Burderi, K. C. Gendreau +8
We report on the phase-coherent timing analysis of the accreting millisecond X-ray pulsar IGR J17591-2342, using Neutron Star Interior Composition Explorer (NICER) data taken durin…
ESA Voyage 2050 white paper -- GrailQuest: hunting for Atoms of Space and Time hidden in the wrinkle of Space-Time
L. Burderi, A. Sanna, T. Di Salvo +30
GrailQuest (Gamma Ray Astronomy International Laboratory for QUantum Exploration of Space-Time) is a mission concept based on a constellation (hundreds/thousands) of nano/micro/sma…
Broadband spectral analysis of MXB 1659-298 in its soft and hard state
S. M. Mazzola, R. Iaria, A. F. Gambino +6
The X-ray transient eclipsing source MXB 1659-298 went in outburst in 1999 and 2015, respectively, during which it was observed by XMM-Newton, NuSTAR and Swift. Using these observa…
Indications of non-conservative mass-transfer in AMXPs
A. Marino, T. Di Salvo, L. Burderi +7
Context. Since the discovery of the first Accreting Millisecond X-ray Pulsar SAX J1808.4-3658 in 1998, the family of these sources kept growing on. Currently, it counts 22 members.…
Updated orbital ephemeris of the ADC source X 1822-371: a stable orbital expansion over 40 years
S. M. Mazzola, R. Iaria, T. Di Salvo +6
The source X 1822-371 is an eclipsing compact binary system with a period close to 5.57 hr and an orbital period derivative of 1.51(7) s s$^{-1…
Spectral analysis of the dipping LMXB system XB 1916-053
A. F. Gambino, R. Iaria, T. Di Salvo +6
Context: XB 1916-053 is a low mass X-ray binary system (LMXB) hosting a neutron star (NS) and showing periodic dips. The spectrum of the persistent emission was modeled with a blac…
HERMES: An ultra-wide band X and gamma-ray transient monitor on board a nano-satellite constellation
F. Fuschino, R. Campana, C. Labanti +49
The High Energy Modular Ensemble of Satellites (HERMES) project is aimed to realize a modular X/gamma-ray monitor for transient events, to be placed on-board of a CubeSat bus. This…
The broadband spectral analysis of 4U 1702-429 using XMM-Newton and BeppoSAX data
S. M. Mazzola, R. Iaria, T. Di Salvo +8
Most of the X-ray binary systems containing neutron stars classified as Atoll sources show two different spectral states, called soft and hard. Moreover, a large number of these sy…
NuSTAR and XMM-Newton broad-band spectrum of SAX J1808.4-3658 during its latest outburst in 2015
T. Di Salvo, A. Sanna, L. Burderi +4
The first discovered accreting millisecond pulsar, SAX J1808.4-3658, went into X-ray outburst in April 2015. We triggered a 100 ks XMM-Newton ToO, taken at the peak of the outburst…
NuSTAR and NICER reveal IGR J17591-2342 as a new accreting millisecond X-ray pulsar
A. Sanna, C. Ferrigno, P. S. Ray +21
We report on the discovery by the Nuclear Spectroscopic Telescope Array (NuSTAR) and the Neutron Star Interior Composition Explorer (NICER) of the accreting millisecond X-ray pulsa…
SWIFT J1756.9-2508: spectral and timing properties of its 2018 outburst
A. Sanna, F. Pintore, A. Riggio +8
We discuss the spectral and timing properties of the accreting millisecond X-ray pulsar SWIFT J1756.9-2508 observed by XMM-Newton, NICER and NuSTAR during the X-ray outburst occurr…
Broadband spectral analysis of MXB 1659-298 in its soft and hard state
R. Iaria, S. M. Mazzola, T. Bassi +7
The X-ray transient eclipsing source MXB 1659-298 went into outburst in 1999 and 2015. During these two outbursts the source was observed by XMM-Newton, nuSTAR, and Swift/XRT. Usin…
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…