118 citations · 691 across the 34 of their papers we have counts for
22 papers · 1 filter
Planets in Pulsar Winds
T. Kaister, S. Andrés Joya Méndez, P. Marmat +4
Planets around pulsars were the first discovered exoplanets, found thanks to the extremely precise pulsar timing. Here we suggest that they could also be found through the radio em…
Probing the accreting millisecond X-ray pulsar SAX J1808.4-3658 using the evolution of its spectral and aperiodic timing properties
Aman Kaushik, Yash Bhargava, Sudip Bhattacharyya +1
Understanding accretion components in neutron star (NS) low mass X-ray binary (LMXB) systems is important to probe fundamental aspects of accretion mechanism and evolution of the s…
Timing and spectral studies of SRGA J144459.2604207 with NICER, Einstein Probe, IXPE, NuSTAR, Insight-HXMT and INTEGRAL during its 2024 outburst
Zhaosheng Li, Lucien Kuiper, Yuanyue Pan +13
SRGA J144459.2604207 is a newly confirmed accreting millisecond X-ray pulsar and type I X-ray burster. We present the broadband X-ray timing and spectral behaviors of SRGA J1444…
Emission and Absorption Lines in Photospheric Radius Expansion Bursts of 4U 182030
Wenhui Yu, Zhaosheng Li, Yuanyue Pan +4
We analyze the emission and absorption lines during photospheric radius expansion (PRE) X-ray bursts from the ultracompact binary 4U 1820--30, observed with the Neutron Star Interi…
Quenching and recovery of persistent X-ray emission during a superburst in 4U 182030
Zhijiao Peng, Zhaosheng Li, Yuanyue Pan +6
We report the superburst from 4U 1820--30 in 2021 observed by the Monitor of All-sky X-ray Image and Neutron star Interior Composition Explorer (NICER). During the tail of the supe…
A comprehensive study of type I (thermonuclear) bursts in the new transient SRGA J144459.2604207
Tao Fu, Zhaosheng Li, Yuanyue Pan +11
We report an analysis of Insight-HXMT observations of the newly discovered accreting millisecond pulsar SRGA J144459.2604207. During the outburst, detected in 2024 February by S…
Indications of magnetic accretion in Swift J0826.2-7033
Nikita Rawat, Domitilla De Martino, Koji Mukai +3
We present our findings from the first long X-ray observation of the hard X-ray source Swift J0826.2-7033 with XMM-Newton, which has shown characteristics of magnetic accretion. Th…
Broad-band X-ray spectral and timing properties of the accreting millisecond X-ray pulsar IGR J174982921 during the 2023 outburst
Zhaosheng Li, L. Kuiper, Y. Y. Pan +10
We report on the broadband spectral and timing properties of the accreting millisecond X-ray pulsar IGR J174982921 during its April 2023 outburst using data from NICER (110 k…
Discovery of a long thermonuclear X-ray burst from the ultra-compact binary 4U 1850087
Yongqi Lu, Zhaosheng Li, Wenhui Yu +2
We report the detection of a long X-ray burst triggered on MJD 60171.65 from the ultra-compact binary 4U 1850087 by the Monitor of All-sky X-ray Image and Neutron Star Interior…
NICER views moderate, strong, and extreme photospheric expansion bursts from the ultracompact X-ray binary 4U 182030
Wenhui Yu, Zhaosheng Li, Yongqi Lu +5
Type I X-ray bursts in the ultracompact X-ray binary 4U 182030 are powered by the unstable thermonuclear burning of hydrogen-deficient material. We report the detection of 15 ty…
Discovery of spin-phase dependent QPOs in the super-critical accretion regime from the X-ray pulsar RX J0440.9+4431
Christian Malacaria, Daniela Huppenkothen, Oliver J. Roberts +5
RX J0440.9+4431 is an accreting X-ray pulsar (XRP) that remained relatively unexplored until recently, when major X-ray outburst activity enabled more in-depth studies. Here, we re…
The INTEGRAL view of the pulsating hard X-ray sky: from accreting and transitional millisecond pulsars to rotation-powered pulsars and magnetars
A. Papitto, M. Falanga, W. Hermsen +30
In the last 25 years, a new generation of X-ray satellites imparted a significant leap forward in our knowledge of X-ray pulsars. The discovery of accreting and transitional millis…
Hard X-ray Cataclysmic Variables
D. de Martino, F. Bernardini, K. Mukai +2
Among hard X-ray Galactic sources detected in the Swift and INTEGRAL surveys, those discovered as accreting white dwarf binaries have suprisingly boosted in number in the recent ye…
2PBC J0658.0-1746: a hard X-ray eclipsing polar in the orbital period gap
F. Bernardini, D. de Martino, K. Mukai +2
The hard X-ray source 2PBC J0658.0-1746 was proposed as an eclipsing magnetic cataclysmic variable of the polar type, based on optical follow-ups. We present the first spectral and…
The true nature of Swift J0746.3-1608: a possible Intermediate Polar showing accretion state changes
F. Bernardini, D. de Martino, K. Mukai +1
Optical and X-ray observations suggested that the 9.38 h binary, SWIFT J0746.3- 1608 could be a Cataclysmic Variable of the magnetic or nova-like type, or a low mass X-ray binary.…
IGR J14257-6117, a magnetic accreting white dwarf with a very strong X-ray orbital modulation
F. Bernardini, D. de Martino, K. Mukai +1
IGR J14257-6117 is an unclassified source in the hard X-ray catalogues. Optical follow-ups suggest it could be a Cataclysmic Variable of the magnetic type. We present the first hig…
The accretion environment of Supergiant Fast X-ray Transients probed with XMM-Newton
E. Bozzo, F. Bernardini, C. Ferrigno +3
Supergiant fast X-ray transients (SFXTs) are characterized by a remarkable variability in the X-ray domain, widely ascribed to the accretion from a clumpy stellar wind. In this pap…
Multi-wavelength observations of IGR J17544-2619 from quiescence to outburst
E. Bozzo, V. Bhalerao, P. Pradhan +12
In this paper we report on a long multi-wavelength observational campaign of the supergiant fast X-ray transient prototype IGR J17544-2619. A 150 ks-long observation was carried ou…
Clumpy wind accretion in supergiant neutron star high mass X-ray binaries
E. Bozzo, L. Oskinova, A. Feldmeier +1
The accretion of the stellar wind material by a compact object represents the main mechanism powering the X-ray emission in classical supergiant high mass X-ray binaries and superg…
Determination of parameters of long-term variability of the X-ray pulsar LMC X-4
S. Molkov, A. Lutovinov, M. Falanga
We have investigated the temporal variability of the X-ray flux measured from the high-mass Xray binary LMCX-4 on time scales from several tens of days to tens of years, i.e., exce…
Swift J0525.6+2416 and IGR J04571+4527: two new hard X-ray selected magnetic cataclysmic variables identified with XMM-Newton
F. Bernardini, D. de Martino, K. Mukai +4
IGR J04571+4527 and Swift J0525.6+2416 are two hard X-ray sources detected in the Swift/BAT and INTEGRAL/IBIS surveys. They were proposed to be magnetic cataclysmic variables of th…
Spectral and timing properties of the accreting X-ray millisecond pulsar IGR J17511-3057
M. Falanga, L. Kuiper, J. Poutanen +6
IGR J17511-3057 is the second X-ray transient accreting millisecond pulsar discovered by INTEGRAL. It was in outburst for about a month from September 13, 2009. The broad-band aver…