activity
20102026
most citedOn The Origin Of The Gamma Rays From The Galactic Center

517 citations · 6k across the 141 of their papers we have counts for

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Showing 2018Show all

8 papers · 1 filter

astro-ph.HE2018★ 47 cited

Active Galactic Nuclei and the Origin of IceCube's Diffuse Neutrino Flux

Dan Hooper, Tim Linden, Abby Vieregg

The excess of neutrino candidate events detected by IceCube from the direction of TXS 0506+056 has generated a great deal of interest in blazars as sources of high-energy neutrinos…

hep-ph2018★ 57 cited

Constraints on Spin-Dependent Dark Matter Scattering with Long-Lived Mediators from TeV Observations of the Sun with HAWC

A. Albert, R. Alfaro, C. Alvarez +91

We analyze the Sun as a source for the indirect detection of dark matter through a search for gamma rays from the solar disk. Capture of dark matter by elastic interactions with th…

astro-ph.HE2018★ 32 cited

First HAWC Observations of the Sun Constrain Steady TeV Gamma-Ray Emission

A. Albert, R. Alfaro, C. Alvarez +92

Steady gamma-ray emission up to at least 200 GeV has been detected from the solar disk in the Fermi-LAT data, with the brightest, hardest emission occurring during solar minimum. T…

astro-ph.HE2018★ 23 cited

Evidence for Cosmic-Ray Escape in the Small Magellanic Cloud using Fermi Gamma-rays

Laura A. Lopez, Katie Auchettl, Tim Linden +3

Galaxy formation simulations demonstrate that cosmic-ray (CR) feedback may be important in the launching of galactic-scale winds. CR protons dominate the bulk of the CR population,…

astro-ph.HE2018★ 113 cited

Self-Generated Cosmic-Ray Confinement in TeV Halos: Implications for TeV Gamma-Ray Emission and the Positron Excess

Carmelo Evoli, Tim Linden, Giovanni Morlino

Recent observations have detected extended TeV gamma-ray emission surrounding young and middle-aged pulsars. The morphology of these "TeV halos" requires cosmic-ray diffusion to be…

astro-ph.HE2018★ 41 cited

Unexpected Dip in the Solar Gamma-Ray Spectrum

Qing-Wen Tang, Kenny C. Y. Ng, Tim Linden +3

The solar disk is a bright source of multi-GeV gamma rays, due to the interactions of hadronic cosmic rays with the solar atmosphere. However, the underlying production mechanism i…

astro-ph.HE2018★ 47 cited

Millisecond Pulsars, TeV Halos, and Implications For The Galactic Center Gamma-Ray Excess

Dan Hooper, Tim Linden

Observations by HAWC indicate that many young pulsars (including Geminga and Monogem) are surrounded by spatially extended, multi-TeV emitting regions. It is not currently known, h…

astro-ph.HE2018★ 50 cited

Evidence for a New Component of High-Energy Solar Gamma-Ray Production

Tim Linden, Bei Zhou, John F. Beacom +3

The observed multi-GeV gamma-ray emission from the solar disk --- sourced by hadronic cosmic rays interacting with gas, and affected by complex magnetic fields --- is not understoo…