scholarly journals Improved limits on sterile neutrino dark matter using full-sky Fermi Gamma-ray Burst Monitor data

2015 ◽  
Vol 92 (4) ◽  
Author(s):  
Kenny C. Y. Ng ◽  
Shunsaku Horiuchi ◽  
Jennifer M. Gaskins ◽  
Miles Smith ◽  
Robert Preece
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Sterile Neutrino ◽  
Gamma Ray Burst ◽  
Monitor Data

scholarly journals Decoupled sectors and Wolf–Rayet galaxies

2016 ◽  
Vol 25 (10) ◽  
pp. 1650094 ◽  
Author(s):  
Willy Fischler ◽  
Jimmy ◽  
Dustin Lorshbough
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Particle Mass ◽  
Gamma Ray Burst ◽  
Star Forming ◽  
Star Forming Regions ◽  
Visible Matter ◽  
Input Parameters ◽  
Jet Power ◽  
Matter Sector

It has recently been proposed that gamma-ray burst (GRB) events may be modified by the presence of a dark matter sector subcomponent that is charged under an unbroken U(1). This proposal depends upon there being a nontrivial density of charged dark matter in star forming regions of galaxies which host GRBs. We discuss four Wolf–Rayet galaxies (NGC 1614, NGC 3367, NGC 4216 and NGC 5430) which should contain comparable amounts of dark matter gas and visible matter gas in the star forming regions. We show that the ratio of dark jet power to visible jet power depends only on the ratio of particle mass and charge when the densities are equal, allowing for these input parameters to be probed directly by future observations of GRBs.

scholarly journals Contribution of Dark Matter Annihilation to Gamma-Ray Burst Afterglows near Massive Galaxy Centers

2020 ◽  
Vol 904 (1) ◽  
pp. 17
Author(s):  
Bao-Quan Huang ◽  
Tong Liu ◽  
Feng Huang ◽  
Da-Bin Lin ◽  
Bing Zhang
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Dark Matter Annihilation ◽  
Gamma Ray Burst ◽  
Massive Galaxy

scholarly journals Testing merging of dark exotic stars from gravitational waves in the multi-messenger approach

2018 ◽  
Vol 33 (29) ◽  
pp. 1850167 ◽  
Author(s):  
Andrea Addazi ◽  
Antonino Marciano
Keyword(s):  
Dark Matter ◽  
Neutron Stars ◽  
Gamma Ray ◽  
New Physics ◽  
Dark Matter Halo ◽  
Electromagnetic Signal ◽  
Gamma Ray Burst ◽  
Ordinary Matter ◽  
Spatially Correlated ◽  
Wave Event

We discuss possible implications of the recent detection by the LIGO and VIRGO collaboration of the gravitational-wave event GW170817, the signal of which is consistent with predictions in general relativity on the merging of neutron stars. A near-simultaneous and spatially correlated observation of a gamma-ray burst, the GRB 170817A signal, was achieved independently by the Fermi Gamma-ray Burst Monitor, and by the Anti-coincidence Shield for the Spectrometer of the International Gamma-Ray Astrophysics Laboratory. Motivated by this near temporal and spatial concomitance of events, which can occur by chance only with the probability [Formula: see text], we speculate on the possibility that new dark stars signals could be detected from the LIGO/VIRGO detectors. This proposal, which aims at providing a test for some models of dark matter, relies on the recent achievement of detecting, for visible ordinary matter, the merging of neutron stars both in the gravitational and the electromagnetic channel. A lack of correlation between the two expected signals would suggest a deviation from the properties of ordinary matter. Specifically, we focus on models of invisible dark matter, and in particular we study the case of mirror dark matter, within the framework of which a large amount of mirror neutron stars are naturally envisaged to occupy our dark matter halo. The observation of an electromagnetically hidden event inside the dark matter halo of our galaxy should provide a hint of new physics. There would be indeed no satisfactorily complete explanation accounting for the lack of electromagnetic signal, if only standard neutron star merging were considered to describe events that happen so close to us.

scholarly journals Analysis of Individual Terrestrial Gamma‐Ray Flashes With Lightning Leader Models and Fermi Gamma‐Ray Burst Monitor Data

2019 ◽  
Vol 124 (8) ◽  
pp. 7170-7183 ◽  
Author(s):  
B. G. Mailyan ◽  
W. Xu ◽  
S. Celestin ◽  
M. S. Briggs ◽  
J. R. Dwyer ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Burst ◽  
Lightning Leader ◽  
Monitor Data

scholarly journals THE BURST CLUSTER: DARK MATTER IN A CLUSTER MERGER ASSOCIATED WITH THE SHORT GAMMA-RAY BURST, GRB 050509B

2013 ◽  
Vol 772 (1) ◽  
pp. 23 ◽  
Author(s):  
H. Dahle ◽  
C. L. Sarazin ◽  
L. A. Lopez ◽  
C. Kouveliotou ◽  
S. K. Patel ◽  
...  
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Gamma Ray Burst
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