Results 11 to 20 of about 6,868 (42)
The Denoised, Deconvolved, and Decomposed Fermi $\gamma$-ray sky - An application of the D$^3$PO algorithm [PDF]
, 2015 We analyze the 6.5yr all-sky data from the Fermi LAT restricted to gamma-ray photons with energies between 0.6-307.2GeV. Raw count maps show a superposition of diffuse and point-like emission structures and are subject to shot noise and instrumental ...
Enßlin, Torsten A. +3 more
core +2 more sources
The Planes of Satellite Galaxies Problem, Suggested Solutions, and Open Questions
, 2018 Satellite galaxies of the Milky Way and of the Andromeda galaxy have been found to preferentially align in significantly flattened planes of satellite galaxies, and available velocity measurements are indicative of a preference of satellites in those ...
Pawlowski, Marcel S.
core +1 more source
Diversity in density profiles of self-interacting dark matter satellite halos [PDF]
, 2019 We present results from N-body simulations of self-interacting dark matter (SIDM) subhalos, which could host ultra-faint dwarf spheroidal galaxies, inside a Milky-Way-like main halo.
Kahlhoefer, Felix +3 more
core +2 more sources
The Dark Matter at the End of the Galaxy
, 2010 Dark matter density profiles based upon Lambda-CDM cosmology motivate an ansatz velocity distribution function with fewer high velocity particles than the Maxwell-Boltzmann distribution or proposed variants.
A. S. Eddington +8 more
core +1 more source
Antimatter and antistars in the universe and in the Galaxy
, 2014 We consider consequences of hypothetical existence of baryo-dense stars created in the very early universe within an extension of Affleck-Dine scenario of baryogenesis. New constraints on the possible number of compact antimatter objects are derived. The
Blinnikov, S. I. +2 more
core +1 more source
Solar and Stellar Photospheric Abundances
, 2016 The determination of photospheric abundances in late-type stars from spectroscopic observations is a well-established field, built on solid theoretical foundations.
Prieto, Carlos Allende
core +2 more sources
Galactic dynamics and long-range quantum gravity
, 2019 We explore in a systematic way the possibility that long-range quantum gravity effects could play a role at galactic scales and could be responsible for the phenomenology commonly attributed to dark matter.
Cadoni, Mariano, Tuveri, Matteo
core +1 more source
Model-independent constraints on dark matter annihilation in dwarf spheroidal galaxies
, 2018 We present a general, model-independent formalism for determining bounds on the production of photons in dwarf spheroidal galaxies via dark matter annihilation, applicable to any set of assumptions about dark matter particle physics or astrophysics.
Boddy, Kimberly K. +3 more
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WIMP searches with gamma rays in the Fermi era: challenges, methods and results
, 2015 The launch of the gamma-ray telescope Fermi Large Area Telescope (Fermi-LAT) started a pivotal period in indirect detection of dark matter. By outperforming expectations, for the first time a robust and stringent test of the paradigm of weakly ...
Cohen-Tanugi, Johann +2 more
core +3 more sources
Updated galactic radio constraints on Dark Matter
, 2016 We perform a detailed analysis of the synchrotron signals produced by Dark Matter annihilations and decays. We consider different set-ups for the propagation of electrons and positrons, the galactic magnetic field and Dark Matter properties.
Cirelli, Marco, Taoso, Marco
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