Found 1258 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Resolving the Crab pulsar wind nebula at teraelectronvolt energies

This result closes a gap in the multi-wavelength coverage of the nebula, revealing the emission region of the highest energy gamma rays. Expand abstract.
3 days ago
7/10 relevant
arXiv

The 3HSP catalogue of Extreme & High Synchrotron Peaked Blazars

High synchrotron peaked blazars (HSPs or HBLs) play a central role in very high energy (VHE) gamma-ray astronomy, and likely in neutrino astronomy. Expand abstract.
5 days ago
4/10 relevant
arXiv

A Synchrotron in the TEM: Spatially Resolved Fine Structure Spectra at High Energies

Alternatively, electron energy loss spectroscopy (EELS) in the (scanning) transmission electron microscope ((S)TEM) offers over a 1000 fold increase in spatial resolution, a transformative advantage for studies of nanostructured materials. Expand abstract.
10 days ago
5/10 relevant
arXiv

Espresso Acceleration of Ultra-High-Energy Cosmic Rays up to the Hillas Limit in Relativistic MHD Jets

Espresso is a novel acceleration model for Ultra-High-Energy Cosmic Rays (UHECRs), where lower-energy CRs produced in supernova remnants experience a one-shot reacceleration in the relativistic jets of powerful Active Galactic Nuclei (AGNs) to reach energies up to $10^{20}$ eV. Expand abstract.
10 days ago
10/10 relevant
arXiv

Generation of high-charge electron beam in a subcritical-density plasma through laser pulse self-trapping

Here, we prove these findings for a subcritical plasma, where the total charge of high-energy electrons reaches the multi-nC level, by optimization in a 3D PIC simulation study and compare the results with an analytic theory of relativistic self-focusing. Expand abstract.
11 days ago
5/10 relevant
arXiv

High-energy emission from GRBs: 10 years with Fermi-LAT

Finally, we show how the LAT observations can be used to inform theory, in particular the prospects for very high-energy emission. Expand abstract.
11 days ago
10/10 relevant
arXiv

MAGIC and MWL monitoring of the blazar TXS 0506+056 in the 2018/2019 season

TXS 0506+056 is a key object to help the astrophysics community to establish connections between high-energy neutrinos and astrophysical sources. Expand abstract.
12 days ago
5/10 relevant
arXiv

Aspects of high energy scattering

We review the possible singularities that amplitudes can have, before examining the generic behaviour that can arise in the high-energy limit. Expand abstract.
12 days ago
10/10 relevant
arXiv

Recent results from the VERITAS multimessenger program

The detection of VHE gamma rays from these sources would not only help in pinpointing an electromagnetic counterpart to the gravitational-wave event, but also enable the study of the relativistic shocks responsible for the high-energy emission. Expand abstract.
12 days ago
7/10 relevant
arXiv

Probe Of Sterile Neutrinos Using Astrophysical Neutrino Flavor

Thus, the measurement of the high-energy astrophyscal neutrino flavor content allows us to explore sterile neutrinos independently of the sterile neutrino mass scale. Expand abstract.
12 days ago
4/10 relevant
arXiv