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Title: Fermi Detection Of The Pulsar Wind Nebula Hess J1640–465

Abstract

We present observations of HESS J1640–465 with the Fermi-Large Area Telescope. The source is detected with high confidence as an emitter of high-energy gamma-rays. The spectrum lacks any evidence for the characteristic cutoff associated with emission from pulsars, indicating that the emission arises primarily from the pulsar wind nebula (PWN). Broadband modeling implies an evolved nebula with a low magnetic field resulting in a high γ-ray to X-ray flux ratio. The Fermi emission exceeds predictions of the broadband model, and has a steeper spectrum, possibly resulting from a distinct excess of low energy electrons similar to what is inferred for both the Vela X and Crab PWNe.

Authors:
 [1];  [2];  [3];  [3];  [4];  [5];  [6]
+ Show Author Affiliations
  1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  2. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Univ. Simon Bolivar (Venezuela)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Inst. de Physique Nucleaire (IPN), Orsay (France)
  5. New York Univ. (NYU), NY (United States)
  6. Univ. of Bordeaux, Gradignan (France)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1357537
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

Slane, P., Castro, D., Funk, S., Uchiyama, Y., Lemiere, A., Gelfand, J. D., and Lemoine-Goumard, M. Fermi Detection Of The Pulsar Wind Nebula Hess J1640–465. United States: N. p., 2010. Web. doi:10.1088/0004-637X/720/1/266.
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Slane, P., Castro, D., Funk, S., Uchiyama, Y., Lemiere, A., Gelfand, J. D., & Lemoine-Goumard, M. Fermi Detection Of The Pulsar Wind Nebula Hess J1640–465. United States. https://doi.org/10.1088/0004-637X/720/1/266
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Slane, P., Castro, D., Funk, S., Uchiyama, Y., Lemiere, A., Gelfand, J. D., and Lemoine-Goumard, M. Mon . "Fermi Detection Of The Pulsar Wind Nebula Hess J1640–465". United States. https://doi.org/10.1088/0004-637X/720/1/266. https://www.osti.gov/servlets/purl/1357537.
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@article{osti_1357537,
title = {Fermi Detection Of The Pulsar Wind Nebula Hess J1640–465},
author = {Slane, P. and Castro, D. and Funk, S. and Uchiyama, Y. and Lemiere, A. and Gelfand, J. D. and Lemoine-Goumard, M.},
abstractNote = {We present observations of HESS J1640–465 with the Fermi-Large Area Telescope. The source is detected with high confidence as an emitter of high-energy gamma-rays. The spectrum lacks any evidence for the characteristic cutoff associated with emission from pulsars, indicating that the emission arises primarily from the pulsar wind nebula (PWN). Broadband modeling implies an evolved nebula with a low magnetic field resulting in a high γ-ray to X-ray flux ratio. The Fermi emission exceeds predictions of the broadband model, and has a steeper spectrum, possibly resulting from a distinct excess of low energy electrons similar to what is inferred for both the Vela X and Crab PWNe.},
doi = {10.1088/0004-637X/720/1/266},
journal = {The Astrophysical Journal},
number = 1,
volume = 720,
place = {United States},
year = {2010},
month = {8}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1088/0004-637X/720/1/266
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Works referenced in this record:

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    Works referencing / citing this record:

    CHASING THE IDENTIFICATION OF ASCA GALACTIC OBJECTS (ChIcAGO): AN X-RAY SURVEY OF UNIDENTIFIED SOURCES IN THE GALACTIC PLANE. I. SOURCE SAMPLE AND INITIAL RESULTS
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