Fermi Large Area Telescope Observations Of Gamma-Ray Pulsars PSR J1057–5226, J1709–4429, And J1952+3252
Abstract
The Fermi Large Area Telescope (LAT) data have confirmed the pulsed emission from all six high-confidence gamma-ray pulsars previously known from the EGRET observations. We report results obtained from the analysis of 13 months of LAT data for three of these pulsars (PSR J1057–5226, PSR J1709–4429, and PSR J1952+3252) each of which had some unique feature among the EGRET pulsars. The excellent sensitivity of LAT allows more detailed analysis of the evolution of the pulse profile with energy and also of the variation of the spectral shape with phase. We measure the cutoff energy of the pulsed emission from these pulsars for the first time and provide a more complete picture of the emission mechanism. The results confirm some, but not all, of the features seen in the EGRET data.
- Authors:
-
- Naval Research Lab. (NRL), Washington, DC (United States); et al.
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- Fermi LAT Collaboration
- OSTI Identifier:
- 1357538
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal
- Additional Journal Information:
- Journal Volume: 720; Journal Issue: 1; Journal ID: ISSN 0004-637X
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Abdo, A. A. Fermi Large Area Telescope Observations Of Gamma-Ray Pulsars PSR J1057–5226, J1709–4429, And J1952+3252. United States: N. p., 2010.
Web. doi:10.1088/0004-637X/720/1/26.
Abdo, A. A. Fermi Large Area Telescope Observations Of Gamma-Ray Pulsars PSR J1057–5226, J1709–4429, And J1952+3252. United States. https://doi.org/10.1088/0004-637X/720/1/26
Abdo, A. A. Thu .
"Fermi Large Area Telescope Observations Of Gamma-Ray Pulsars PSR J1057–5226, J1709–4429, And J1952+3252". United States. https://doi.org/10.1088/0004-637X/720/1/26. https://www.osti.gov/servlets/purl/1357538.
@article{osti_1357538,
title = {Fermi Large Area Telescope Observations Of Gamma-Ray Pulsars PSR J1057–5226, J1709–4429, And J1952+3252},
author = {Abdo, A. A.},
abstractNote = {The Fermi Large Area Telescope (LAT) data have confirmed the pulsed emission from all six high-confidence gamma-ray pulsars previously known from the EGRET observations. We report results obtained from the analysis of 13 months of LAT data for three of these pulsars (PSR J1057–5226, PSR J1709–4429, and PSR J1952+3252) each of which had some unique feature among the EGRET pulsars. The excellent sensitivity of LAT allows more detailed analysis of the evolution of the pulse profile with energy and also of the variation of the spectral shape with phase. We measure the cutoff energy of the pulsed emission from these pulsars for the first time and provide a more complete picture of the emission mechanism. The results confirm some, but not all, of the features seen in the EGRET data.},
doi = {10.1088/0004-637X/720/1/26},
journal = {The Astrophysical Journal},
number = 1,
volume = 720,
place = {United States},
year = {Thu Aug 05 00:00:00 EDT 2010},
month = {Thu Aug 05 00:00:00 EDT 2010}
}
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