output
19972026
most citedThe Swift X-ray Telescope

2.7k citations

457 papers

astro-ph.HE2026

Constraints on the VHE counterpart of two binary black hole mergers observed by the MAGIC and CTAO LST-1 telescopes

K. Abe, S. Abe, J. Abhir +358

We present very-high-energy gamma-ray observations of two binary black hole merger candidates, GW240615_113620 and GW241125_010116, performed with the Major Atmospheric Gamma Imagi…

astro-ph.IM2026★ 14 cited

The Vera C. Rubin Observatory Data Preview 1

Vera C Rubin Observatory Team, Tatiana Acero Cuellar, Emily Acosta +325

We present Rubin Data Preview 1 DP1, the first data from the NSF DOE Vera C Rubin Observatory, comprising raw and calibrated single epoch images, coadds, difference images, detecti…

astro-ph.HE2026★ 1 cited

Source identification for the Swift-BAT 150-month hard X-ray catalog using soft X-ray observations

K. Imam, N. Torres-Alba, S. Marchesi +10

We present a comprehensive catalog of 251 potential counterparts for 250 unassociated hard X-ray sources detected in the Swift Burst Alert Telescope (BAT) 150-month hard X-ray surv…

astro-ph.IM2025★ 3 cited

A simple, flexible method for timing cross-calibration of space missions

Matteo Bachetti, Yukikatsu Terada, Megumi Shidatsu +25

The timing (cross-)calibration of astronomical instruments is often done by comparing pulsar times-of-arrival (TOAs) to a reference timing model. In high-energy astronomy, the choi…

astro-ph.HE2025★ 3 cited

Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory

K. Abe, S. Abe, J. Abhir +491

The dwarf spheroidal galaxies (dSphs) orbiting the Milky Way are widely regarded as systems supported by velocity dispersion against self-gravity, and as prime targets for the sear…

astro-ph.HE2025

Low-frequency spectra of neutron star + OB supergiant binaries: Does wind density drive persistent and flaring modes of accretion?

J. van den Eijnden, L. Sidoli, M. Díaz Trigo +10

Neutron star high-mass X-ray binaries are well-studied in wavebands between the infrared and hard X-rays. Their low-frequency millimeter and radio properties, on the other hand, re…

astro-ph.HE2025

The Scintillator Surface Detector of the Pierre Auger Observatory

The Pierre Auger Collaboration

Data collected so far by the Pierre Auger Observatory have enabled major advances in ultra-high energy cosmic ray physics and demonstrated that improved determination of masses of…

astro-ph.HE2025

Measuring the muon content of inclined air showers using AERA and the water-Cherenkov detectors of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +360

We present a novel approach for assessing the muon content of air showers with large zenith angles on a combined analysis of their radio emission and particle footprint. We use the…

astro-ph.HE2025★ 1 cited

Probing multi-band variability and mode switching in the candidate transitional millisecond pulsar 3FGL J1544.6-1125

Giulia Illiano, Francesco Coti Zelati, Arianna Miraval Zanon +20

We present the most extensive high-time resolution multi-band campaign to date on the candidate transitional millisecond pulsar (tMSP) 3FGL J1544.6-1125 in the sub-luminous disk st…

astro-ph.HE2025★ 1 cited

A Radio-quiet AGN as a candidate counterpart to neutrino event IceCube-200615A

F. McBride, N. Schettino, J. D. O'Brien +13

Follow-up observations of neutrino events have been a promising method for identifying sources of very-high-energy cosmic rays. Neutrinos are unambiguous tracers of hadronic intera…

astro-ph.HE2025★ 3 cited

A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission

Sandeep K. Rout, M. Cristina Baglio, Andrew Hughes +19

Several phenomenological aspects of low-luminosity neutron star transients, such as atolls, remain poorly understood. One such source, MAXI J1807+132, entered its latest outburst i…

astro-ph.HE2025★ 2 cited

Scaler rates from the Pierre Auger Observatory: a new proxy of solar activity

The Pierre Auger Collaboration, I. Bizzarri, C. Dionese +1

The modulation of low-energy galactic cosmic rays reflects interplanetary magnetic field variations and can provide useful information on solar activity. An array of ground-surface…

astro-ph.HE2025★ 1 cited

High energy time lags of Gamma Ray Bursts

C. Maraventano, G. Ghirlanda, L. Nava +5

Positive lags between the arrival time of different photon energies are commonly observed in Gamma-Ray Bursts (GRBs), where soft photons lag behind harder ones. However, some GRBs…

astro-ph.IM2025

X-ray spectral fitting with Monte Carlo Dropout Neural Networks

A. Tutone, A. Anitra, E. Ambrosi +11

We present a novel approach using neural networks to recover X-ray spectral model parameters and quantify uncertainties, balancing accuracy and computational efficiency against tra…

astro-ph.HE2025★ 7 cited

Joint Radiative and Kinematic Modelling of X-ray Binary Ejecta: Energy Estimate and Reverse Shock Detection

A. J. Cooper, J. H. Matthews, F. Carotenuto +6

Black hole X-ray binaries in outburst launch discrete, large-scale jet ejections which can propagate to parsec scales. The kinematics of these ejecta appear to be well described by…

astro-ph.HE2025★ 2 cited

Identification and characterisation of the gamma-ray counterpart of the transitional pulsar candidate CXOU J110926.4-650224

A. Manca, F. Coti Zelati, J. Li +9

Transitional millisecond pulsars (tMSPs) represent a crucial link between the rotation-powered and accretion-powered states of binary pulsars. During their active X-ray state, tMSP…

astro-ph.HE2025★ 5 cited

A search for the anomalous events detected by ANITA using the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +374

A dedicated search for upward-going air showers at zenith angles exceeding and energies EeV has been performed using the Fluorescence Detector of the Pierre Aug…

astro-ph.HE2025★ 4 cited

Unveiling the origin of XMM-Newton soft proton flares II. Systematics in the proton spectral analysis

T. Mineo, V. Fioretti, S. Lotti +7

Low-energy protons entering the field of view of the XMM-Newton telescope scatter with the X-ray mirror surface and might reach the X-ray detectors on the focal plane. They manifes…

astro-ph.IM2025★ 7 cited

Unveiling the origin of XMM-Newton soft proton flares: I. Design and validation of a response matrix for proton spectral analysis

Valentina Fioretti, Teresa Mineo, Simone Lotti +8

Low-energy (<300 keV) protons entering the field of view of XMM-Newton are observed in the form of a sudden increase in the background level, the so-called soft proton flares, affe…

astro-ph.HE2025★ 6 cited

Energy-resolved pulse profile changes in V 0332+53: Indications of wings in the cyclotron absorption line profile

Antonino D'Aì, Dimitrios K. Maniadakis, Carlo Ferrigno +15

We aim to investigate the energy-resolved pulse profile changes of the accreting X-ray pulsar V 0332+53, focusing in the cyclotron line energy range, using the full set of availabl…

astro-ph.HE2025

Line detections in photospheric radius expansion bursts from 4U 1820-303

F. Barra, D. Barret, C. Pinto +3

Context: NICER (Neutron star Interior Composition ExploreR) is the instrument of choice for the spectral analysis of type I X-ray bursts, as it provides high throughput at X-ray CC…

astro-ph.HE2024★ 3 cited

Search for the multiwavelength counterparts to extragalactic unassociated Fermi γ-ray sources

Alberto Ulgiati, Simona Paiano, Fabio Pintore +7

Aims. In this paper, we searched for multi-wavelength (X-ray, optical and radio) counterparts to the unassociated gamma-ray sources (UGS) of the Fermi 4FGL-DR4 catalog. The main go…

astro-ph.HE2024★ 2 cited

Pulsating ultraluminous X-ray sources: modeling the thermal emission and polarization properties

S. Conforti, L. Zampieri, R. Taverna +4

Ultraluminous X-ray sources (ULXs) are enigmatic sources first discovered in the 1980s in external galaxies. They are characterized by their extraordinarily high X-ray luminosity,…

astro-ph.HE2024★ 4 cited

Effects of ultra-fast outflows on X-ray time lags in AGN

Yerong Xu, Ciro Pinto, Erin Kara +3

The time lag between soft and hard X-ray photons has been observed in many active galactic nuclei (AGN) and can reveal the accretion process and geometry around supermassive black…