35 citations · 64 across the 10 of their papers we have counts for
11 papers
The Virgo Cluster as a Case Study for Ancient Cosmic Ray Halos in Radio and X-rays
Philip F. Hopkins, Emily M. Silich, Jack Sayers +2
Virgo is the nearest cool core (CC) galaxy cluster, and is archetypal of the class of X-ray weak CCs. Despite the X-ray continuum implying a large cooling rate ($\gtrsim 10\,{\rm M…
An Inverse-Compton-Boosted Cool Core Unifies Perseus's Radio and X-ray Halos
Philip F. Hopkins, Emily M. Silich, Jack Sayers +2
Perseus is the brightest X-ray strong cool-core (SCC) cluster, with a bright central radio and -ray source plus low-frequency radio mini and giant halos. It is the archetype of…
Observational Implications of Cosmic Ray-Inverse Compton 'Boosted' Cool Cores in Clusters
Philip F. Hopkins, Emily Silich, Jack Sayers +2
X-ray luminous cool-core (CC) galaxy clusters contain powerful cosmic ray (CR) sources. High-energy CRs powering GHz synchrotron lose energy rapidly, but long-lived (~Gyr-old) popu…
Fermi Bubbles Without AGN: Gamma-Ray Bubbles in MHD Galaxy Formation Simulations with Full Cosmic Ray Spectra
Isabel S. Sands, Philip F. Hopkins, Sam B. Ponnada
For the first time, we show in MHD simulations with cosmological initial conditions that bi-lobed gamma-ray outflows similar to the Fermi bubbles can form from star formation and s…
Galactic Center Gamma-Ray Emission in MHD Galaxy Formation Simulations with Full Cosmic Ray Spectra
Isabel S. Sands, Philip F. Hopkins, Sam B. Ponnada +3
The Milky Way's galactic center is a highly dynamical, crowded environment. Gamma ray observations of this region, such as the excess of GeV scale gamma rays observed by Fermi LAT,…
Cosmic Rays Masquerading as Cool Cores: An Inverse-Compton Origin for Cool Core Cluster Emission
Philip F. Hopkins, Eliot Quataert, Emily M. Silich +3
X-ray bright cool-core (CC) clusters contain luminous radio sources accelerating cosmic ray (CR) leptons at prodigious rates. Near the acceleration region, high-energy leptons prod…
Diverse dark matter profiles in FIRE dwarfs: black holes, cosmic rays and the cusp-core enigma
Sophie Koudmani, Douglas Rennehan, Rachel S. Somerville +5
Dwarf galaxies have historically posed challenges to the cold dark matter (CDM) model and, while many of the so-called 'dwarf galaxy problems' have been mitigated by incorporating…
Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a tool to Understand Dark Matter Profiles
Isabel S. Sands, Philip F. Hopkins, Xuejian Shen +9
While galaxy rotation curves provide one of the most powerful methods for measuring dark matter profiles in the inner regions of rotation-supported galaxies, at the dwarf scale the…
Wide-Angle Effects in the Power Spectrum Multipoles in Next-Generation Redshift Surveys
Joshua N. Benabou, Isabel Sands, Henry S. Grasshorn Gebhardt +2
As galaxy redshift surveys expand to larger areas on the sky, effects coming from the curved nature of the sky become important, introducing wide-angle (WA) corrections to the powe…
Novel Conservative Methods for Adaptive Force Softening in Collisionless and Multi-Species N-Body Simulations
Philip F. Hopkins, Ethan O. Nadler, Michael Y. Grudic +3
Modeling self-gravity of collisionless fluids (e.g. ensembles of dark matter, stars, black holes, dust, planetary bodies) in simulations is challenging and requires some force soft…
Schrödinger-Poisson Solitons: Perturbation Theory
J. Luna Zagorac, Isabel Sands, Nikhil Padmanabhan +1
Self-gravitating quantum matter may exist in a wide range of cosmological and astrophysical settings from the very early universe through to present-day boson stars. Such quantum m…