Pair cascades in the magnetospheres of strongly-magnetized neutron stars

Pair Instability Supernovae: Light Curves, Spectra, and Shock Breakout

Pair plasma relaxation time scales

Pair Production in Low Luminosity Galactic Nuclei

Pair-Instability Supernovae at the Epoch of Reionization

Pair-Instability Supernovae via Collision Runaway in Young Dense Star Clusters

PAMELA Measurements of Cosmic-ray Proton and Helium Spectra

PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy

PAMELA Satellite Data as a Signal of Non-Thermal Wino LSP Dark Matter

PAMELA through a Magnetic Lense

Pan-STARRS1 Discovery of Two Ultra-Luminous Supernovae at z ~ 0.9

Panchromatic Observations of SN 2011dh Point to a Compact Progenitor Star

Papaloizou-Pringle Instability of Magnetized Accretion Tori

Paradigm Shifts and a Possible Resolution of the PAMELA-Paradox in Astroparticle Physics

Parameter constraints for high-energy models of colliding winds of massive stars: the case WR 147

Parameter Estimation and Confidence Regions in the Method of Light Curve Simulations for the Analysis of Power Density Spectra

Parameter estimation on gravitational waves from multiple coalescing binaries

Parsec-Scale Bipolar X-ray Shocks Produced by Powerful Jets from the Neutron Star Circinus X-1

Parsec-scale Faraday Rotation Measures from General Relativistic MHD Simulations of Active Galactic Nuclei Jets

Partially Screened Gap -- general approach and observational consequences