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19922026
most citedAstropy: A Community Python Package for Astronomy

14.6k citations

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314 papers · 1 filter

astro-ph.HE2026

Discriminating blazar emission models with high-energy polarimetry: Multi-band predictions and detectability

Sara Capecchiacci, Ioannis Liodakis, Haocheng Zhang +2

Polarimetric properties of blazars provide key constraints on the acceleration mechanisms powering their relativistic jets, the high-energy emission processes involved, and the com…

astro-ph.HE2026

Exploring the nature of Galactic unassociated sources detected by the Fermi-LAT

F. Acero, A. Acharyya, A. Adelfio +120

We investigate the nature of the unassociated sources detected by the Fermi-LAT close (|b|<10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The…

astro-ph.HE2026★ 2 cited

Gamma-ray signature of superluminous supernovae: Fermi-LAT GeV detection of SN 2017egm and evidence of a central engine

F. Acero, A. Acharyya, A. Adelfio +116

Superluminous supernovae (SLSNe) are a rare class of transients with peak luminosities 10-100 times greater than those of standard core-collapse supernovae (SNe). The mechanisms po…

astro-ph.HE2026

Detectability of Polarized Gamma-ray Emission from Blazar Flares with COSI

Garrett A. Latiolais, Jorge Otero-Santos, Michela Negro +18

We investigate the detectability of polarized gamma-ray emission from blazar flares with the Compton Spectrometer and Imager (COSI). Using 17 years of Fermi Large Area Telescope ob…

astro-ph.HE2026

Can COSI detect -ray lines from rare isotopes produced in the astrophysical intermediate neutron-capture process?

Falk Herwig, Pavel Denissenkov, Eric Burns

We investigate the nuclear -ray line emission from rare isotopes produced in the astrophysical intermediate neutron-capture process ( process) and assess the prospects of obs…

astro-ph.HE2026

Generation of Quantum Turbulence by Neutrino Cooling in Neutron Stars

J. A. Sauls

The interior crust and much of the liquid core of neutron stars is believed to be a quantum liquid mixture of neutron and proton superfluids and a relativistic electron liquid. Qua…

astro-ph.HE2026

Label Propagation for Identifying Gamma-Ray Burst Progenitors from Prompt Emission

Skye Strain, Nicoló Cibrario, Michela Negro +1

Gamma-ray bursts (GRBs) are the most energetic bursts of light in our universe, and rapid progenitor association of these events can lead to targeted and optimized follow-up observ…

astro-ph.HE2026

IXPE view of the Crab pulsar following the 17 July and 6 August 2025 glitches

Paolo Soffitta, Niccolò Bucciantini, Josephine Wong +19

The Crab pulsar experienced two relatively small glitches separated by only 20 days in September and October 2025. IXPE observed the source twice, with delay times since the glitch…

astro-ph.HE2025

Large Language Model-driven Analysis of General Coordinates Network (GCN) Circulars

Vidushi Sharma, Ronit Agarwala, Judith L. Racusin +9

The General Coordinates Network (GCN) is NASA's time-domain and multimessenger alert system. GCN distributes two data products: automated "Notices" and human-generated "Circulars"…

astro-ph.HE2025

From Rare Events to a Population: Discovering Overlooked Extragalactic Magnetar Giant Flare Candidates in Archival Fermi Gamma-ray Burst Monitor Data

Aaron C. Trigg, Eric Burns, Michela Negro +16

Magnetar giant flares (MGFs) are rare, extremely bright bursts of gamma-rays from highly magnetized neutron stars. These events are challenging to identify because, at extragalacti…

astro-ph.HE2025★ 1 cited

Embedding Reliability for Unsupervised Classification of Gamma Ray Burst progenitors from Prompt Gamma-ray Emission

Nicoló Cibrario, Michela Negro

We present a statistical method based on scDEED to assess the reliability of a 2D embedding showing a low-dimensional representation of the distribution of Gamma-Ray Bursts (GRBs)…

astro-ph.HE2025

Direct observation of the X-ray counterpart of the Hα filaments and of the sloshing spiral in the Perseus galaxy cluster

Adrien Picquenot, Fabio Acero, Valeria Olivares +2

Deep Chandra observations of the Perseus galaxy cluster have allowed for the discovery of X-ray counterparts to the Hα filamentary structures and of a sloshing spiral. However, bot…

astro-ph.HE2025

Infrared Synchrotron Emission in the Soft State of GX 339-4 and the Mid-Infrared/X-ray Luminosity Plane of Black Hole X-ray Binaries

P. Gandhi, D. M. Russell, M. C. Baglio +33

Progress in understanding the growth of accreting black holes remains hampered by a lack of sensitive coordinated multiwavelength observations. In particular, the mid-infrared (MIR…

astro-ph.HE2025★ 12 cited

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star

Eliza Neights, Eric Burns, Chris L. Fryer +52

Gamma-ray bursts are the most luminous electromagnetic events in the universe. Their prompt gamma-ray emission has typical durations between a fraction of a second and several minu…

astro-ph.HE2025★ 2 cited

Gravitational waves from magnetorotational core-collapse supernovae using 3D GRMHD simulations: effect of rotation and magnetic fields

Sophia C. Schnauck, Swapnil Shankar, Philipp Mösta +2

We investigate the gravitational wave emission for 10 supernova progenitors from magnetorotational core-collapse to the supernova explosion using fully three-dimensional dynamical-…

astro-ph.HE2025★ 4 cited

Vacuum birefringence and the polarized X-ray emission from a radio magnetar

Rachael E. Stewart, Hoa Dinh Thi, George Younes +13

Magnetars are isolated neutron stars with exceptionally strong surface fields exceeding G. Their bright X-ray emission probes physical regimes in which quantum electrodyn…

astro-ph.HE2025

Testing Magnetic Field Configurations in Spider Pulsar PSR J1723-2837 with IXPE

Michela Negro, Haocheng Zhang, Niccolò Di Lalla +4

We present the first X-ray polarimetry observations of a redback millisecond pulsar binary, PSR J1723-2837, with the Imaging X-ray Polarimetry Explorer (IXPE). We conduct a spectro…

astro-ph.HE2025

Polarization of reflected X-ray emission from the Sgr A molecular complex: multiple flares, multiple sources?

Ildar Khabibullin, Eugene Churazov, Riccardo Ferrazzoli +100

The extended X-ray emission observed in the direction of several molecular clouds in the central molecular zone of our Galaxy exhibits spectral and temporal properties consistent w…

astro-ph.HE2025★ 1 cited

Precision spectral measurements of Chromium and Titanium from 10 to 250 GeV and sub-Iron to Iron ratio with the Calorimetric Electron Telescope on the ISS

O. Adriani, Y. Akaike, K. Asano +77

The Calorimetric Electron Telescope (CALET), in operation on the International Space Station since 2015, collected a large sample of cosmic-ray (CR) iron and sub-iron events over a…

astro-ph.HE2025★ 4 cited

GRB 241105A: A test case for GRB classification and rapid r-process nucleosynthesis channels

Dimple, B. P. Gompertz, A. J. Levan +85

Gamma-ray bursts (GRBs) offer a powerful window to probe the progenitor systems responsible for the formation of heavy elements through the rapid neutron capture (r-) process, than…

astro-ph.HE2025★ 1 cited

Optical Counterparts to X-ray sources in LSST DP1

Yuankun, Wang, Eric C. Bellm +9

We present a crossmatch between a combined catalog of X-ray sources and the Vera C. Rubin Observatory Data Preview 1 (DP1) to identify optical counterparts. The six fields targeted…

astro-ph.HE2025

A Black Hole is Born: 3D GRMHD Simulation of Black Hole Formation from Core-Collapse

Goni Halevi, Swapnil Shankar, Philipp Mösta +2

We present the first three-dimensional, fully general-relativistic magnetohydrodynamic (3D GRMHD) simulation of a black hole (BH) formed from the collapsed core of a massive star.…

astro-ph.HE2025★ 6 cited

A polarized view of the young Pulsar Wind Nebula 3C 58 with IXPE

N. Bucciantini, J. Wong, R. W. Romani +11

Pulsar Wind nebulae (PWNe), are among the most efficient particle accelerators in the Universe, however understanding the physical conditions and the magnetic geometry in their inn…

astro-ph.HE2025★ 2 cited

Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

A. Acharyya, A. Adelfio, M. Ajello +100

The steady-state gamma-ray emission from the Sun is thought to consist of two emission components due to interactions with Galactic cosmic rays: (1) a hadronic disk component, and…