activity
19992022
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 2k across the 34 of their papers we have counts for

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Showing 2018Show all

5 papers · 1 filter

astro-ph.HE2018

Searching for Dark Matter Sub-structure with HAWC

A. U. Abeysekara, A. Albert, R. Alfaro +75

Simulations of dark matter show a discrepancy between the expected number of Galactic dark matter sub-halos and how many have been optically observed. Some of these unseen satellit…

astro-ph.HE2018

Very high energy particle acceleration powered by the jets of the microquasar SS 433

HAWC Collaboration, A. U. Abeysekara, A. Albert +104

SS 433 is a binary system containing a supergiant star that is overflowing its Roche lobe with matter accreting onto a compact object (either a black hole or neutron star). Two jet…

astro-ph.HE2018

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

Observation of Anisotropy of TeV Cosmic Rays with Two Years of HAWC

A. U. Abeysekara, R. Alfaro, C. Alvarez +98

After two years of operation, the High-Altitude Water Cherenkov (HAWC) Observatory has analyzed the TeV cosmic-ray sky over an energy range between and TeV. The HAWC d…

astro-ph.HE2018

Search for Dark Matter Gamma-ray Emission from the Andromeda Galaxy with the High-Altitude Water Cherenkov Observatory

A. Albert, R. Alfaro, C. Alvarez +97

The Andromeda Galaxy (M31) is a nearby (780 kpc) galaxy similar to our own Milky Way. Observational evidence suggests that it resides in a large halo of dark matter (DM), mak…