output
19932026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2018 · astro-ph.HEShow all

14 papers · 2 filters

astro-ph.HE2018★ 173 cited

A -ray determination of the Universe's star-formation history

LAT Collaboration, M. Ajello, K. Helgason +4

The light emitted by all galaxies over the history of the Universe produces the extragalactic background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a…

astro-ph.HE2018★ 37 cited

Unresolved Gamma-Ray Sky through its Angular Power Spectrum

M. Ackermann, M. Ajello, L. Baldini +107

The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi large area telescope (LAT), allowing us to resolve and understand the high-energy Un…

astro-ph.HE2018★ 88 cited

Particle Transport within the Pulsar Wind Nebula HESS J1825-137

H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +225

Aims: We present a detailed view of the pulsar wind nebula (PWN) HESS J1825-137. We aim to constrain the mechanisms dominating the particle transport within the nebula, accounting…

astro-ph.HE2018★ 40 cited

Robust cosmic-ray constraints on -wave annihilating MeV dark matter

Mathieu Boudaud, Thomas Lacroix, Martin Stref +1

We recently proposed a method to constrain -wave annihilating MeV dark matter from a combination of the Voyager 1 and the AMS-02 data on cosmic-ray electrons and positrons. Voya…

astro-ph.HE2018★ 56 cited

Searches for gamma-ray lines and `pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S

H. E. S. S. Collaboration, :, H. Abdalla +234

Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems f…

astro-ph.HE2018★ 39 cited

VERITAS and Fermi-LAT observations of new HAWC sources

VERITAS Collaboration, A. U. Abeysekara, A. Archer +280

The HAWC (High Altitude Water Cherenkov) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100~GeV) gamma-ray sources based on 507 days of obs…

astro-ph.HE2018★ 395 cited

Compact radio emission indicates a structured jet was produced by a binary neutron star merger

G. Ghirlanda, O. S. Salafia, Z. Paragi +33

The binary neutron star merger event GW170817 was detected through both electromagnetic radiation and gravitational waves. Its afterglow emission may have been produced by either a…

astro-ph.HE2018★ 58 cited

Core collapse supernovae as Cosmic Ray sources

Alexandre Marcowith, Vikram Dwarkadas, Matthieu Renaud +2

Core collapse supernovae (CCSNe) produce fast shocks which pervade the dense circum-stellar medium (CSM) of the stellar progenitor. Cosmic rays (CRs) if accelerated at these shocks…

astro-ph.HE2018★ 30 cited

Understanding the -ray emission from the globular cluster 47 Tuc: evidence for dark matter?

Anthony M. Brown, Thomas Lacroix, Sheridan Lloyd +2

47 Tuc was the first globular cluster observed to be -ray bright, with the -rays being attributed to a population of unresolved millisecond pulsars (MSPs). Recent kinematic d…

astro-ph.HE2018★ 9 cited

Disentangling hadronic from leptonic emission in the composite SNR G326.31.8

J. Devin, F. Acero, J. Ballet +1

G326.31.8 (also known as MSH 1556) has been detected in radio as a middle-aged composite supernova remnant (SNR) consisting of an SNR shell and a pulsar wind nebula (PWN), wh…

astro-ph.HE2018★ 176 cited

Search for Spatial Extension in High-Latitude Sources Detected by the Fermi Large Area Telescope

LAT Collaboration, Jonathan Biteau

We present a search for spatial extension in high-latitude () sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Cat…

astro-ph.HE2018★ 53 cited

Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar

C. J. Clark, H. J. Pletsch, J. Wu +18

Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsat…

astro-ph.HE2018★ 33 cited

H.E.S.S. discovery of very high energy gamma-ray emission from PKS 0625-354

H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +253

PKS 0625-354 (z=0.055) was observed with the four H.E.S.S. telescopes in 2012 during 5.5 hours. The source was detected above an energy threshold of 200 GeV at a significance level…

astro-ph.HE2018★ 70 cited

Cosmic ray production in supernovae

A. M. Bykov, D. C. Ellison, A. Marcowith +1

We give a brief review of the origin and acceleration of cosmic rays (CRs), emphasizing the production of CRs at different stages of supernova evolution by the first-order Fermi sh…