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6 papers · 2 filters
Accurate halo mass functions from the simplest excursion set theory
M. Sten Delos
Excursion set theory is a powerful and widely used tool for describing the distribution of dark matter haloes, but it is normally applied with simplifying approximations. We use nu…
Can prompt cusps of WIMP dark matter be detected as individual gamma-ray sources?
M. Sten Delos
Prompt density cusps are the densest and most abundant dark matter systems. If the dark matter is a weakly interacting massive particle (WIMP), recent studies h…
The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements
Patrick L. Kelly, Steven Rodney, Tommaso Treu +28
In late 2014, four images of Supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster…
Constraints on the Hubble constant from Supernova Refsdal's reappearance
Patrick L. Kelly, Steven Rodney, Tommaso Treu +27
The gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeare…
Boosting Line Intensity Map Signal-to-Noise with the Ly- Forest Cross-Correlation
Mahdi Qezlou, Simeon Bird, Adam Lidz +6
We forecast the prospects for cross-correlating future line intensity mapping (LIM) surveys with the current and future Ly- forest data. We use large cosmological hydrodynamic s…
Pushing the Limits of Detectability: Mixed Dark Matter from Strong Gravitational Lenses
Ryan E. Keeley, Anna M. Nierenberg, Daniel Gilman +3
One of the frontiers for advancing what is known about dark matter lies in using strong gravitational lenses to characterize the population of the smallest dark matter halos. There…