Publications (11)
Multiwavelength Analysis of Dark Matter Annihilation and RX-DMFIT
Alex McDaniel, Tesla Jeltema, Stefano Profumo +1
Dark matter (DM) particles are predicted by several well motivated models to yield Standard Model particles through self-annihilation that can potentially be detected by astrophysi…
Searching for Primordial Black Holes in the radio and X-ray sky
Daniele Gaggero, Gianfranco Bertone, Francesca Calore +4
We model the accretion of gas onto a population of massive primordial black holes in the Milky Way, and compare the predicted radio and X-ray emission with observational data. We s…
The Fermi-LAT GeV Excess Traces Stellar Mass in the Galactic Bulge
Richard Bartels, Emma Storm, Christoph Weniger +1
An anomalous emission component at energies of a few GeV and located towards the inner Galaxy is present in the Fermi-LAT data. It is known as the Fermi-LAT GeV excess. Using almos…
Synchrotron Emission from Dark Matter Annihilation: Predictions for Constraints from Non-detections of Galaxy Clusters with New Radio Surveys
Emma Storm, Tesla E. Jeltema, Megan Splettstoesser +1
The annihilation of dark matter particles is expected to yield a broad radiation spectrum via the production of Standard Model particles in astrophysical environments. In particula…
XMM-Newton Observations of the Southeastern Radio Relic in Abell 3667
Emma Storm, Jacco Vink, Fabio Zandanel +1
Radio relics, elongated, non-thermal, structures located at the edges of galaxy clusters, are the result of synchrotron radiation from cosmic-ray electrons accelerated by merger-dr…
SkyFACT: High-dimensional modeling of gamma-ray emission with adaptive templates and penalized likelihoods
Emma Storm, Christoph Weniger, Francesca Calore
We present SkyFACT (Sky Factorization with Adaptive Constrained Templates), a new approach for studying, modeling and decomposing diffuse gamma-ray emission. Like most previous ana…
Constraints on Dark Matter Annihilation in Clusters of Galaxies from Diffuse Radio Emission
Emma Storm, Tesla E. Jeltema, Stefano Profumo +1
Annihilation of dark matter can result in the production of stable Standard Model particles including electrons and positrons that, in the presence of magnetic fields, lose energy…
On the progressive hardening of the cosmic-ray proton spectrum in the inner Galaxy
Mart Pothast, Daniele Gaggero, Emma Storm +1
Spatial variations of the average properties that characterize the hadronic component of the diffuse Galactic cosmic-ray sea, in particular the spectral slope and normalization, ma…
A Radio and X-ray Study of the Merging Cluster A2319
Emma Storm, Tesla E. Jeltema, Lawrence Rudnick
A2319 is a massive, merging galaxy cluster with a previously detected radio halo that roughly follows the X-ray emitting gas. We present the results from recent observations of A23…
Gamma Rays from Star Formation in Clusters of Galaxies
Emma Storm, Tesla E. Jeltema, Stefano Profumo
Star formation in galaxies is observed to be associated with gamma-ray emission. The detection of gamma rays from star-forming galaxies by the Fermi Large Area Telescope (LAT) has…
Galactic Binaries Can Explain the Fermi Galactic Center Excess and 511 keV Emission
Richard Bartels, Francesca Calore, Emma Storm +1
The Fermi-LAT Galactic Center excess and the 511 keV positron-annihilation signal from the inner Galaxy bare a striking morphological similarity. We propose that both can be explai…