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Simultaneous acceleration of protons and electrons at nonrelativistic quasiparallel collisionless shocks.
The normalization of the electron power law is ≲10^{-2} of the protons for strong nonrelativistic shocks, which is of paramount importance for explaining the cosmic ray fluxes measured on Earth and the multiwavelength emission of astrophysical objects such as supernova remnants, radio supernovae, and galaxy clusters. Expand
An Infrared Survey of Brightest Cluster Galaxies. I.
We report on an imaging survey with the Spitzer Space Telescope of 62 brightest cluster galaxies with optical line emission. These galaxies are located in the cores of X-ray luminous clustersExpand
Particle-in-cell simulations of particle energization via shock drift acceleration from low Mach number quasi-perpendicular shocks in solar flares
Low Mach number, high beta fast mode shocks can occur in the magnetic reconnection outflows of solar flares. These shocks, which occur above flare loop tops, may provide the electron energizationExpand
Dark-ages reionization and galaxy formation simulation–XI. Clustering and halo masses of high redshift galaxies
We investigate the clustering properties of Lyman-break galaxies (LBGs) at $z\sim6$ - $8$. Using the semi-analytical model {\scshape Meraxes} constructed as part of the Dark-ages Reionization AndExpand
Inferring the astrophysics of reionization and cosmic dawn from galaxy luminosity functions and the 21-cm signal
The properties of the first galaxies, expected to drive the Cosmic Dawn (CD) and the Epoch of Reionization (EoR), are encoded in the 3D structure of the cosmic 21-cm signal. Parameter inference fromExpand
A tale of two sites – I. Inferring the properties of minihalo-hosted galaxies from current observations
The very first galaxies that started the cosmic dawn likely resided in so-called "minihaloes", with masses of $\sim10^5$-$10^8\mathrm{M}_\odot$, accreting their gas from the intergalactic mediumExpand
The H i mass function as a probe of photoionization feedback on low-mass galaxy formation
We explore the galaxy formation physics governing the low-mass end of the H i mass function in the local Universe. Specifically, we predict the effects on the H i mass function of varying (i) theExpand
Evolution of a relativistic electron beam-plasma return current system
Evolution of a relativistic electron beam-plasma return current system has been studied using particle-in-cell simulations. The mode number-resolved linear growth rates of the oblique instabilitiesExpand
The minimum gap‐opening planet mass in an irradiated circumstellar accretion disc
We consider the minimum mass planet, as a function of radius, that is capable of opening a gap in an �-accretion disk. We estimate that a half Jupiter mass planet can open a gap in a disk withExpand
The cross-power spectrum between 21 cm emission and galaxies in hierarchical galaxy formation models
The correlation between 21 cm fluctuations and galaxies is sensitive to the astrophysical properties of the galaxies that drove reionization. Thus, detailed measurements of the cross-power spectrumExpand