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Physics and astrophysics of strong magnetic field systems with eXTP
Andrea Santangelo, Silvia Zane, Hua Feng +38
In this paper we present the science potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies of strongly magnetized objects. We will focus on the physics…
The enhanced X-ray Timing and Polarimetry mission - eXTP
ShuangNan Zhang, Andrea Santangelo, Marco Feroci +146
In this paper we present the enhanced X-ray Timing and Polarimetry mission - eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of…
Study of the X-ray pulsar IGR J19294+1816 with NuSTAR: detection of cyclotron line and transition to accretion from the cold disc
Sergey S. Tsygankov, Victor Doroshenko, Alexander A. Mushtukov +2
In the work we present the results of two deep broad-band observations of the poorly studied X-ray pulsar IGR J19294+1816 obtained with the NuSTAR observatory. The source was obser…
Spectral and timing analysis of the bursting pulsar GRO J1744-28 with RXTE observations
Long Ji, Andrea Santangelo, Shu Zhang +5
We analyzed RXTE/PCA observations of the bursting pulsar GRO J1744-28 during its two outbursts in 1995-1997. We have found a significant transition, i.e., a sharp change, of both s…
Dramatic spectral transition of X-ray pulsar GX 304-1 in low luminous state
Sergey S. Tsygankov, Alicia Rouco Escorial, Valery Suleimanov +5
We report on the discovery of a dramatic change in the energy spectrum of the X-ray pulsar GX 304-1 appearing at low luminosity. Particularly, we found that the cutoff power-law sp…
Searches for gamma-ray lines and `pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S
H. E. S. S. Collaboration, :, H. Abdalla +234
Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems f…
Hard X-ray view on intermediate polars in the Gaia era
Valery F. Suleimanov, Victor Doroshenko, Klaus Werner
The hardness of the X-ray spectra of intermediate polars (IPs) is determined mainly by the white dwarf (WD) compactness (mass-radius ratio, M/R) and, thus, hard X-ray spectra can b…
First Ground-based Measurement of Sub-20 GeV to 100 GeV -rays from the Vela Pulsar with H.E.S.S. II
H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +230
We report on the measurement and investigation of pulsed high-energy -ray emission from the Vela pulsar, PSR B083345, based on 40.3 hours of observations with the largest tel…
CXOU J160103.1-513353: another CCO with a carbon atmosphere?
V. Doroshenko, V. Suleimanov, A. Santangelo
We report on the analysis of XMM-Newton observations of the central compact object CXOU J160103.1-513353 located in the center of the non-thermally emitting supernova remnant (SNR)…
On the magnetic field of the first Galactic ultraluminous X-ray pulsar Swift J0243.6+6124
Sergey S. Tsygankov, Victor Doroshenko, Alexander A. Mushtukov +2
We report on the monitoring of the final stage of the outburst from the first Galactic ultraluminous X-ray pulsar Swift J0243.6+6124, which reached 40 Eddington luminosities…
Distances to Accreting X-ray pulsars: impact of the Gaia DR2
S. Treuz, V. Doroshenko, A. Santangelo +1
A well constrained estimate of the distance remains one of the main factors to properly interpret the observations of accreting X-ray pulsars. Since these objects are typically wel…
Changes in the cyclotron line energy on short and long timescales in V 0332+53
Vadim Vybornov, Viktor Doroshenko, Rürdiger Staubert +1
We present the results of the pulse-amplitude-resolved spectroscopy of the accreting pulsar V 0332+53 using the NuSTAR observations of the source in 2015 and 2016. We investigate t…