47 citations · 199 across the 13 of their papers we have counts for
8 papers · 1 filter
Search for heavy dark matter from dwarf spheroidal galaxies: leveraging cascades and subhalo models
Deheng Song, Nagisa Hiroshima, Kohta Murase
The Fermi Large Area Telescope (Fermi-LAT) has been widely used to search for Weakly Interacting Massive Particle (WIMP) dark matter signals due to its unparalleled sensitivity in…
Constraining decaying very heavy dark matter from galaxy clusters with 14 year Fermi-LAT data
Deheng Song, Kohta Murase, Ali Kheirandish
Galaxy clusters are promising targets for indirect detection of dark matter thanks to the large dark matter content. Using 14 years of Fermi-LAT data from seven nearby galaxy clust…
External Inverse-Compton and Proton Synchrotron Emission from the Reverse Shock as the Origin of VHE Gamma-Rays from the Hyper-Bright GRB 221009A
B. Theodore Zhang, Kohta Murase, Kunihito Ioka +3
The detection of the hyper-bright gamma-ray burst (GRB) 221009A enables us to explore the nature of GRB emission and the origin of very-high-energy (VHE) gamma-rays. We analyze the…
Gamma-ray emission from the Sagittarius Dwarf Spheroidal galaxy due to millisecond pulsars
Roland M. Crocker, Oscar Macias, Dougal Mackey +13
The Fermi Bubbles are giant, gamma-ray emitting lobes emanating from the nucleus of the Milky Way discovered in ~1-100 GeV data collected by the Large Area Telescope on board the F…
Measuring the smearing of the Galactic 511 keV signal: positron propagation or supernova kicks?
Thomas Siegert, Roland M. Crocker, Oscar Macias +4
We use 15 years of -ray data from INTEGRAL/SPI in a refined investigation of the morphology of the Galactic bulge positron annihilation signal. Our spatial analysis confirms tha…
Cherenkov Telescope Array sensitivity to the putative millisecond pulsar population responsible for the Galactic center excess
Oscar Macias, Harm van Leijen, Deheng Song +3
The leading explanation of the Galactic center -ray excess is the extended emission from a unresolved population of millisecond pulsars (MSPs) in the Galactic b…
Evidence for a high-energy tail in the gamma-ray spectra of globular clusters
Deheng Song, Oscar Macias, Shunsaku Horiuchi +2
Millisecond pulsars are very likely the main source of gamma-ray emission from globular clusters. However, the relative contributions of two separate emission processes--curvature…
Inverse Compton emission from millisecond pulsars in the Galactic bulge
Deheng Song, Oscar Macias, Shunsaku Horiuchi
Analyses of Fermi Gamma-Ray Space Telescope data have revealed a source of excess diffuse gamma rays towards the Galactic center that extends up to roughly 20 degrees in latit…