An automated and interactive tool for gamma-ray pulsar monitoring and glitch detection
A. Fiori*, M. Razzano, P. Saz Parkinson on behalf of the Fermi-LAT Collaboration
Pre-published on:
February 15, 2023
Published on:
December 14, 2023
Abstract
The Fermi Large Area Telescope is enabling a revolution in pulsar physics, having detected more than 300 gamma-ray pulsars. Fermi-LAT pulsars are typically highly energetic, and hence they are very likely to show glitches. Moreover, a significant fraction of Fermi-LAT pulsars are not detected by radio telescopes. Among radio-quiet pulsars there's the peculiar example of PSR J2021+4026, which is variable on a time scale of a few years. Hence, a monitoring infrastructure is required in order to systematically study the timing evolution of gamma-ray pulsars. For this purpose we are developing GLIMPSE, an analysis pipeline for Fermi-LAT pulsars, based on Python and on the official Fermitools. This pipeline periodically runs data reduction and periodicity tests for each gamma-ray pulsar in the catalog, then performs a glitch search with different approaches. The computational time is reduced thanks to an optimized usage of memory, which renders the tool suitable for a systematic timing analysis of Fermi pulsars. Moreover, a web application allows users to visualize the results and to interactively manage analysis setups. Here we present a preview of the infrastructure, and we discuss future applications in the multi-messenger framework, focusing on searches for gravitational waves from pulsars.
DOI: https://doi.org/10.22323/1.423.0111
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating
very compact bibliographies which can be beneficial to authors and
readers, and in "proceeding" format
which is more detailed and complete.