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207 papers
Deep Learning Models of the Discrete Component of the Galactic Interstellar Gamma-Ray Emission
Alexander Shmakov, Mohammadamin Tavakoli, Pierre Baldi +3
A significant point-like component from the small scale (or discrete) structure in the H2 interstellar gas might be present in the Fermi-LAT data, but modeling this emission relies…
Improved Modeling of the Discrete Component of the Galactic Interstellar Gamma-ray Emission and Implications for the Fermi-LAT Galactic Center Excess
Christopher M. Karwin, Alex Broughton, Simona Murgia +3
The aim of this work is to improve models for the gamma-ray discrete or small-scale structure related to H2 interstellar gas. Reliably identifying this contribution is important to…
Dark Matter Interpretation of the Fermi-LAT Observations Toward the Outer Halo of M31
Chris Karwin, Simona Murgia, Igor Moskalenko +3
An excess -ray signal toward the outer halo of M31 has recently been reported. Although other explanations are plausible, the possibility that it arises from dark matter (DM) is…
Search for gamma-ray emission from -wave dark matter annihilation in the Galactic Center
Christian Johnson, Regina Caputo, Chris Karwin +3
Indirect searches for dark matter through Standard Model products of its annihilation generally assume a cross-section which is dominated by a term independent of velocity (-wav…
Dark Matter Science in the Era of LSST
Keith Bechtol, Alex Drlica-Wagner, Kevork N. Abazajian +177
Astrophysical observations currently provide the only robust, empirical measurements of dark matter. In the coming decade, astrophysical observations will guide other experimental…
Fermi-LAT Observations of Gamma-Ray Emission Towards the Outer Halo of M31
Chris Karwin, Simona Murgia, Sheldon Campbell +1
The Andromeda Galaxy is the closest spiral galaxy to us and has been the subject of numerous studies. It harbors a massive dark matter (DM) halo which may span up to ~600 kpc acros…