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19922026
Showing 2023 · astro-ph.HEShow all

17 papers · 2 filters

astro-ph.HE2023★ 1 cited

A novel approach to identify blazar emission states using clustering algorithms

L. Heckmann, D. Paneque, A. Reimer

Even after decades of multi-wavelength (MWL) observations, blazars still remain mysterious objects. Their extreme variability and variety of emission characteristics observed durin…

astro-ph.HE2023★ 23 cited

MAGIC detection of GRB 201216C at

H. Abe, S. Abe, V. A. Acciari +217

Gamma-ray bursts (GRBs) are explosive transient events occurring at cosmological distances, releasing a large amount of energy as electromagnetic radiation over several energy band…

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★ 3 cited

Joint searches by FACT, H.E.S.S., MAGIC and VERITAS for VHE gamma-ray emission associated with neutrinos detected by IceCube

Fabian Schüssler, Halim Ashkar, Elisa Bernardini +11

The sources of the astrophysical flux of high-energy neutrinos detected by IceCube are still largely unknown, but searches for temporal and spatial correlation between neutrinos an…

astro-ph.HE2023★ 2 cited

Performance of the Large-Sized Telescope prototype of the Cherenkov Telescope Array

Daniel Morcuende, Rubén López-Coto, Abelardo Moralejo +2

The next-generation ground-based gamma-ray Cherenkov Telescope Array Observatory (CTAO) will consist of imaging atmospheric Cherenkov telescopes (IACTs) of three different sizes di…

astro-ph.HE2023★ 2 cited

LST-1 observations of an enormous flare of BL Lacertae in 2021

Seiya Nozaki, Katsuaki Asano, Juan Escudero +2

The first prototype of LST (LST-1) for the Cherenkov Telescope Array has been in commissioning phase since 2018 and already started scientific observations with the low energy thre…

astro-ph.HE2023★ 11 cited

Closure Relations of Synchrotron Self-Compton in Afterglow stratified medium and Fermi-LAT Detected Gamma-Ray Bursts

Nissim Fraija, Maria G. Dainotti, B. Betancourt Kamenetskaia +2

The Second Gamma-ray Burst Catalog (2FLGC) was announced by the Fermi Large Area Telescope (Fermi-LAT) Collaboration. It includes 29 bursts with photon energy higher than 10 GeV. G…

astro-ph.HE2023★ 67 cited

Supernova Simulations Confront SN 1987A Neutrinos

Damiano F. G. Fiorillo, Malte Heinlein, Hans-Thomas Janka +3

We return to interpreting the historical SN~1987A neutrino data from a modern perspective. To this end, we construct a suite of spherically symmetric supernova models with the Prom…

astro-ph.HE2023★ 169 cited

The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars

David A. Smith, Philippe Bruel, Colin J. Clark +156

We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio…

astro-ph.HE2023★ 50 cited

Observations of the Crab Nebula and Pulsar with the Large-Sized Telescope Prototype of the Cherenkov Telescope Array

CTA-LST Project, :, H. Abe +289

CTA (Cherenkov Telescope Array) is the next generation ground-based observatory for gamma-ray astronomy at very-high energies. The Large-Sized Telescope prototype (LST-1) is locate…

astro-ph.HE2023★ 57 cited

Evaluating approximate asymptotic distributions for fast neutrino flavor conversions in a periodic 1D box

Zewei Xiong, Meng-Ru Wu, Sajad Abbar +3

The fast flavor conversions (FFCs) of neutrinos generally exist in core-collapse supernovae and binary neutron-star merger remnants, and can significantly change the flavor composi…

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★ 92 cited

Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions

Jakob Ehring, Sajad Abbar, Hans-Thomas Janka +2

We present the first simulations of core-collapse supernovae in axial symmetry with feedback from fast neutrino flavor conversion (FFC). Our schematic treatment of FFCs assumes ins…

astro-ph.HE2023★ 19 cited

Applications of Machine Learning to Detecting Fast Neutrino Flavor Instabilities in Core-Collapse Supernova and Neutron Star Merger Models

Sajad Abbar

Neutrinos propagating in a dense neutrino gas, such as those expected in core-collapse supernovae (CCSNe) and neutron star mergers (NSMs), can experience fast flavor conversions on…

astro-ph.HE2023★ 143 cited

Fermi-GBM Discovery of GRB 221009A: An Extraordinarily Bright GRB from Onset to Afterglow

S. Lesage, P. Veres, M. S. Briggs +136

We report the discovery of GRB 221009A, the highest flux gamma-ray burst ever observed by the Fermi Gamma-ray Burst Monitor (GBM). This GRB has continuous prompt emission lasting m…

astro-ph.HE2023

The Fermi-LAT Light Curve Repository

S. Abdollahi, M. Ajello, L. Baldini +110

The Fermi Large Area Telescope (LAT) light curve repository (LCR) is a publicly available, continually updated library of gamma-ray light curves of variable Fermi-LAT sources gener…

astro-ph.HE2023★ 90 cited

Fast Neutrino Flavor Conversion in Core-Collapse Supernovae: A Parametric Study in 1D Models

Jakob Ehring, Sajad Abbar, Hans-Thomas Janka +2

We explore the impact of small-scale flavor conversions of neutrinos, the so-called fast flavor conversions (FFCs), on the dynamical evolution and neutrino emission of core-collaps…