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Luminosity distance in Swiss cheese cosmology with randomized voids and galaxy halos
Éanna É. Flanagan, Naresh Kumar, Ira Wasserman
We study the fluctuations in luminosity distance due to gravitational lensing produced both by galaxy halos and large scale voids. Voids are represented via a "Swiss cheese" model…
Guilt by Association: Finding Cosmic Ray Sources Using Hierarchical Bayesian Clustering
Kunlaya Soiaporn, David Chernoff, Thomas Loredo +2
The Earth is continuously showered by charged cosmic ray particles, naturally produced atomic nuclei moving with velocity close to the speed of light. Among these are ultra high en…
Multilevel Bayesian framework for modeling the production, propagation and detection of ultra-high energy cosmic rays
Kunlaya Soiaporn, David Chernoff, Thomas Loredo +2
Ultra-high energy cosmic rays (UHECRs) are atomic nuclei with energies over ten million times energies accessible to human-made particle accelerators. Evidence suggests that they o…