output
19912026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2024 · astro-ph.HEShow all

17 papers · 2 filters

astro-ph.HE2024★ 10 cited

IXPE Observation of the Low-Synchrotron Peaked Blazar S4 0954+65 During An Optical-X-ray Flare

Pouya M. Kouch, Ioannis Liodakis, Francesco Fenu +134

The X-ray polarization observations made possible with the Imaging X-ray Polarimetry Explorer (IXPE) offer new ways of probing high-energy emission processes in astrophysical jets…

astro-ph.HE2024

Investigating the hadron nature of high-energy photons with PeVatrons

Giuseppe Di Sciascio

In high energy Gamma-Ray Astronomy with shower arrays the most discriminating signature of the photon-induced showers against the background of hadron-induced cosmic-ray is the con…

astro-ph.HE2024★ 2 cited

A new method of reconstructing images of gamma-ray telescopes applied to the LST-1 of CTAO

CTA-LST Project, :, K. Abe +305

Imaging atmospheric Cherenkov telescopes (IACTs) are used to observe very high-energy photons from the ground. Gamma rays are indirectly detected through the Cherenkov light emitte…

astro-ph.HE2024★ 11 cited

Investigating the nuclear properties of highly accreting active galactic nuclei with XMM-Newton

M. Laurenti, F. Tombesi, F. Vagnetti +7

Our understanding of highly accreting AGNs is hampered by the lack of a complete systematic investigation in terms of their main spectral and variability properties, and by the rel…

astro-ph.HE2024★ 18 cited

A second view on the X-ray polarization of NGC 4151 with IXPE

V. E. Gianolli, S. Bianchi, E. Kammoun +21

We report on the second observing program of the active galactic nucleus NGC 4151 with simultaneous Imaging X-ray Polarimetry Explorer (IXPE; {\sim}750 ks), NuSTAR ({\sim}60 ks), X…

astro-ph.HE2024★ 15 cited

Probing the polarized emission from SMC X-1: the brightest X-ray pulsar observed by IXPE

Sofia V. Forsblom, Sergey S. Tsygankov, Juri Poutanen +101

Recent observations of X-ray pulsars (XRPs) performed by the Imaging X-ray Polarimetry Explorer (IXPE) have made it possible to investigate the intricate details of these objects i…

astro-ph.HE2024★ 14 cited

Discovery of a shock-compressed magnetic field in the north-western rim of the young supernova remnant RX J1713.7-3946 with X-ray polarimetry

Riccardo Ferrazzoli, Dmitry Prokhorov, Niccolò Bucciantini +99

Supernova remnants (SNRs) provide insights into cosmic-ray acceleration and magnetic field dynamics at shock fronts. Recent X-ray polarimetric measurements by the Imaging X-ray Pol…

astro-ph.HE2024★ 35 cited

IXPE observation of PKS 2155-304 reveals the most highly polarized blazar

Pouya M. Kouch, Ioannis Liodakis, Riccardo Middei +133

We report the X-ray polarization properties of the high-synchrotron-peaked (HSP) blazar PKS 2155304 based on observations with the Imaging X-ray Polarimetry Explorer (IXPE). We…

astro-ph.HE2024★ 25 cited

Inference of the Mass Composition of Cosmic Rays with energies from to eV using the Pierre Auger Observatory and Deep Learning

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +364

We present measurements of the atmospheric depth of the shower maximum , inferred for the first time on an event-by-event level using the Surface Detector of the Pi…

astro-ph.HE2024★ 16 cited

Studying geometry of the ultraluminous X-ray pulsar Swift J0243.6+6124 using X-ray and optical polarimetry

Juri Poutanen, Sergey S. Tsygankov, Victor Doroshenko +108

Discovery of pulsations from a number of ULXs proved that accretion onto neutron stars can produce luminosities exceeding the Eddington limit by several orders of magnitude. The co…

astro-ph.HE2024★ 7 cited

Galactic transient sources with the Cherenkov Telescope Array Observatory

Cherenkov Telescope Array Observatory Consortium

A wide variety of Galactic sources show transient emission at soft and hard X-ray energies: low- and high-mass X-ray binaries containing compact objects, isolated neutron stars exh…

astro-ph.HE2024★ 15 cited

Impact of the Magnetic Horizon on the Interpretation of the Pierre Auger Observatory Spectrum and Composition Data

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +364

The flux of ultra-high energy cosmic rays reaching Earth above the ankle energy (5 EeV) can be described as a mixture of nuclei injected by extragalactic sources with very hard spe…

astro-ph.HE2024★ 3 cited

Constraints on VHE gamma-ray emission of Flat Spectrum Radio Quasars with the MAGIC telescopes

MAGIC Collaboration

Flat spectrum radio quasars (FSRQs) constitute a class of jetted active galaxies characterized by a very luminous accretion disk, prominent and rapidly moving line-emitting cloud s…

astro-ph.HE2024★ 18 cited

X-ray polarization measurement of the gold standard of radio-quiet active galactic nuclei : NGC 1068

F. Marin, A. Marinucci, M. Laurenti +102

We used the Imaging X-ray Polarimetry Explorer (IXPE) satellite to measure, for the first time, the 2-8 keV polarization of NGC 1068. We pointed IXPE for a net exposure time of 1.1…

astro-ph.HE2024★ 4 cited

Winds of change: the nuclear and galaxy-scale outflows and the X-ray variability of 2MASS 0918+2117

P. Baldini, G. Lanzuisi, M. Brusa +21

Powerful outflows from active galactic nuclei (AGN) can significantly impact the gas reservoirs of their host galaxies. However, it is still unclear how these outflows can propagat…

astro-ph.HE2024★ 33 cited

Detection of X-ray Polarization from the Blazar 1ES 1959+650 with the Imaging X-ray Polarimetry Explorer

Manel Errando, Ioannis Liodakis, Alan P. Marscher +142

Observations of linear polarization in the 2-8 keV energy range with the Imaging X-ray Polarimetry Explorer (IXPE) explore the magnetic field geometry and dynamics of the regions g…

astro-ph.HE2024★ 22 cited

Discovery of a strong rotation of the X-ray polarization angle in the galactic burster GX 13+1

Anna Bobrikova, Sofia V. Forsblom, Alessandro Di Marco +106

Weakly magnetized neutron stars in X-ray binaries show complex phenomenology with several spectral components that can be associated with the accretion disk, boundary and/or spread…