output
19942026
most citedA Massive Pulsar in a Compact Relativistic Binary

3.9k citations

Showing 2023 · astro-ph.HEShow all

23 papers · 2 filters

astro-ph.HE2023★ 12 cited

Pulsar-wind-nebula-powered Galactic center X-ray filament G0.13-0.11: Proof of the synchrotron nature by IXPE

Eugene Churazov, Ildar Khabibullin, Thibault Barnouin +103

We report the discovery of X-ray polarization from the X-ray-bright filament. G0.13-0.11 in the Galactic center (GC) region. This filament features a bright, hard X-ray source that…

astro-ph.HE2023★ 6 cited

Topology of Pulsar Profiles (ToPP). I. Graph theory method and classification of the EPN

D. Vohl, J. van Leeuwen, Y. Maan

Some of the most important information on a radio pulsar is derived from its average pulse profile. Many early pulsar studies were necessarily based on only few such profiles. Ther…

astro-ph.HE2023★ 43 cited

Magnetic Field Properties inside the Jet of Mrk 421: Multiwavelength Polarimetry Including the Imaging X-ray Polarimetry Explorer

Dawoon E. Kim, Laura Di Gesu, Ioannis Liodakis +133

We conducted a polarimetry campaign from radio to X-ray wavelengths of the high-synchrotron-peak (HSP) blazar Mrk 421, including Imaging X-ray Polarimetry Explorer (IXPE) measureme…

astro-ph.HE2023★ 12 cited

Multi-year characterisation of the broad-band emission from the intermittent extreme BL Lac 1ES~2344+514

H. Abe, S. Abe, V. A. Acciari +232

The BL Lac 1ES 2344+514 is known for temporary extreme properties (e.g., a shift of the synchrotron SED peak energy above 1keV). While those extreme states were so fa…

astro-ph.HE2023

On the influence of shock-cloud interactions on the nonthermal X-ray emission from the supernova remnant RCW 86

Aya Bamba, Hidetoshi Sano, Ryo Yamazaki +1

It is an open issue how the surrounding environment of supernova remnant shocks affect nonthermal X-rays from accelerated electrons, with or without interacting dense material. We…

astro-ph.HE2023

Astrophysical appearances of primordial black holes

Konstantin Postnov, Aleksandre Kuranov, Nikita Mitichkin

Interest to astrophysical evidence for primordial black holes (PBHs) formed in the early Universe from initial cosmological perturbations has increased after the discovery of coale…

astro-ph.HE2023★ 22 cited

A search for the afterglows, kilonovae, and host galaxies of two short GRBs: GRB 211106A and GRB 211227A

M. Ferro, R. Brivio, P. D'Avanzo +30

Context: GRB 211106A and GRB 211227A are recent gamma-ray bursts (GRBs) with initial X-ray positions suggesting associations with nearby galaxies (z < 0.7). Their prompt emission c…

astro-ph.HE2023★ 11 cited

Polarized radiation from an accretion shock in accreting millisecond pulsars using exact Compton scattering formalism

Anna Bobrikova, Vladislav Loktev, Tuomo Salmi +1

Pulse profiles of accreting millisecond pulsars can be used to determine neutron star (NS) parameters, such as their masses and radii, and therefore provide constraints on the equa…

astro-ph.HE2023

Unveiling the X-ray polarimetric properties of LMC X-3 with IXPE, NICER, and Swift/XRT

Akash Garg, Divya Rawat, Mariano Méndez

The incoming Imaging X-ray Polarimetry Explorer (IXPE) observations of X-ray binaries provide a new tool to investigate the underlying accretion geometry. Here we report the first…

astro-ph.HE2023★ 209 cited

An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451

Serena Vinciguerra, Tuomo Salmi, Anna L. Watts +11

In 2019 the NICER collaboration published the first mass and radius inferred for PSR J0030+0451, thanks to NICER observations, and consequent constraints on the equation of state c…

astro-ph.HE2023★ 19 cited

X-PSI Parameter Recovery for Temperature Map Configurations Inspired by PSR J0030+0451

Serena Vinciguerra, Tuomo Salmi, Anna L. Watts +3

In the last few years, the NICER collaboration has provided mass and radius inferences, via pulse profile modeling, for two pulsars: PSR J0030+0451 and PSR J0740+6620. Given the im…

astro-ph.HE2023★ 33 cited

Atmospheric Effects on Neutron Star Parameter Constraints with NICER

Tuomo Salmi, Serena Vinciguerra, Devarshi Choudhury +7

We present an analysis of the effects of uncertainties in the atmosphere models on the radius, mass, and other neutron star parameter constraints for the NICER observations of rota…

astro-ph.HE2023★ 50 cited

Discovery of strongly variable X-ray polarization in the neutron star low-mass X-ray binary transient XTE J1701462

Massimo Cocchi, Andrea Gnarini, Sergio Fabiani +105

After about 16 years since its first outburst, the transient neutron star low-mass X-ray binary XTE J1701462 turned on again in September 2022, allowing for the first study of i…

astro-ph.HE2023★ 45 cited

X-ray polarimetry and spectroscopy of the neutron star low-mass X-ray binary GX 9+9: an in-depth study with IXPE and NuSTAR

F. Ursini, R. Farinelli, A. Gnarini +101

We report on a comprehensive analysis of simultaneous X-ray polarimetric and spectral data of the bright atoll source GX 9+9 with the Imaging X-ray Polarimetry Explorer (IXPE) and…

astro-ph.HE2023★ 29 cited

Complex variations of X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431

Victor Doroshenko, Juri Poutanen, Jeremy Heyl +109

We report on Imaging X-ray polarimetry explorer (IXPE) observations of the Be-transient X-ray pulsar LS V +44 17/RX J0440.9+4431 made at two luminosity levels during the giant outb…

astro-ph.HE2023★ 13 cited

Simultaneous and panchromatic observations of the Fast Radio Burst FRB 20180916B

M. Trudu, M. Pilia, L. Nicastro +47

Aims. Fast Radio Bursts are bright radio transients whose origin has not yet explained. The search for a multi-wavelength counterpart of those events can put a tight constrain on t…

astro-ph.HE2023★ 16 cited

Sensitivity of the Cherenkov Telescope Array to TeV photon emission from the Large Magellanic Cloud

The Cherenkov Telescope Array Consortium

A deep survey of the Large Magellanic Cloud at ~0.1-100TeV photon energies with the Cherenkov Telescope Array is planned. We assess the detection prospects based on a model for the…

astro-ph.HE2023★ 24 cited

A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375

Christian Malacaria, Jeremy Heyl, Victor Doroshenko +104

Accreting X-ray pulsars (XRPs) are presumably ideal targets for polarization measurements, as their high magnetic field strength is expected to polarize the emission up to a polari…

astro-ph.HE2023★ 24 cited

X-ray polarimetry of the accreting pulsar GX 301-2

Valery F. Suleimanov, Sofia V. Forsblom, Sergey S. Tsygankov +102

The phase- and energy-resolved polarization measurements of accreting X-ray pulsars (XRPs) allow us to test different theoretical models of their emission, and they also provide an…

astro-ph.HE2023★ 29 cited

Detection of extended gamma-ray emission around the Geminga pulsar with H.E.S.S

H. E. S. S. Collaboration, :, F. Aharonian +165

Geminga is an enigmatic radio-quiet gamma-ray pulsar located at a mere 250 pc distance from Earth. Extended very-high-energy gamma-ray emission around the pulsar was discovered by…

astro-ph.HE2023★ 31 cited

X-ray pulsar GRO J100857 as an orthogonal rotator

Sergey S. Tsygankov, Victor Doroshenko, Alexander A. Mushtukov +99

X-ray polarimetry is a unique way to probe the geometrical configuration of highly magnetized accreting neutron stars (X-ray pulsars). GRO J100857 is the first transient X-ray p…

astro-ph.HE2023★ 10 cited

Evidence for thermal X-ray emission from the synchrotron dominated shocks in Tycho's supernova remnant

A. Ellien, E. Greco, J. Vink

Young supernova remnants (SNRs) shocks are believed to be the main sites of galactic cosmic rays production, showing X-ray synchrotron dominated spectra in the vicinity of their sh…

astro-ph.HE2023★ 21 cited

General relativistic hydrodynamic simulations of perturbed transonic accretion

Hector R. Olivares S., Monika A. Moscibrodzka, Oliver Porth

Comparison of horizon-scale observations of Sgr A* and M87* with numerical simulations has provided considerable insight in their interpretation. Most of these simulations are vari…