Particle acceleration and emission processes in pulsar magnetospheres

Metadata Updated: February 28, 2019

The Fermi Gamma-ray Space Telescope greatly increased the number of known pulsars in the gamma-ray band. It was discovered that pulsars often emit a significant fraction of their spin-down energy in gamma-rays, offering a new powerful diagnostic tool of neutron star magnetic field structure. The modeling of gamma-ray data suggests that in order to interpret observations one needs to understand the field geometry and the plasma state in the emission region. In recent years, significant progress has been achieved in understanding the magnetospheric structure in the limit of abundant plasma supply. However, the very presence of dense plasma everywhere in the magnetosphere is not obvious. The region where the observed emission is produced still remains a mystery. To address this from first principles, a full kinetic treatment, which includes the physics of plasma production and particle acceleration, is necessary. In this proposal we will perform kinetic simulations of magnetospheres using relativistic particle-in-cell codes. We will construct both gamma-ray light curves and spectra with minimal assumptions. This will allow meaningful interpretation of Fermi observations of pulsars and answer long-standing puzzles about the physics of pulsar mechanism. These investigations are consistent with NASA’s strategic goal of discovering the origin, structure, and evolution of the universe.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources

Dates

Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_89091
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 080ef031-336b-47d7-a4e0-0ad6e2c72089
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-09-01
Homepage URL https://techport.nasa.gov/view/89091
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-09-07
Program Code 026:027
Source Datajson Identifier True
Source Hash a2716becf3cc498f7290100c137cdf053d070ef2
Source Schema Version 1.1

Didn't find what you're looking for? Suggest a dataset here.