An Atlas For Interpreting Gamma-Ray Pulsar Light Curves
Kyle P. Watters (1), Roger W. Romani (1), Patrick Weltevrede (2),, Simon Johnston (2) ((1) Stanford University, (2) ATNF)
TL;DR
This paper creates a comprehensive map linking pulsar geometry to gamma-ray light curve features, aiding in interpreting observations and understanding pulsar emission mechanisms.
Contribution
It introduces a detailed simulation-based atlas of gamma-ray pulsar light curves across different emission models and geometries.
Findings
Light curve shapes vary with magnetic inclination and viewing angle.
Maps of observable features help identify pulsar types.
Results assist in converting observed fluxes to total emission.
Abstract
We have simulated a population of young spin-powered pulsars and computed the beaming pattern and lightcurves for the three main geometrical models: polar cap emission, two-pole caustic ("slot gap") emission and outer magnetosphere emission. The light curve shapes depend sensitively on the magnetic inclination alpha and viewing angle zeta. We present the results as maps of observables such as peak multiplicity and gamma-ray peak separation in the (alpha, zeta) plane. These diagrams can be used to locate allowed regions for radio-loud and radio-quiet pulsars and to convert observed fluxes to true all-sky emission.
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