FERMI DETECTION OF THE PULSAR WIND NEBULA HESS J1640-465

Slane, P; Castro, D; Funk, S; Uchiyama, Y; Lemiere, A; Gelfand, J D; Lemoine-Goumard, M

doi:10.1088/0004-637X/720/1/266

FERMI DETECTION OF THE PULSAR WIND NEBULA HESS J1640-465

Journal Article · Wed Sep 01 04:00:00 EDT 2010 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/720/1/266· OSTI ID:21460139

Slane, P; Castro, D ^[1]; Funk, S; Uchiyama, Y ^[2]; Lemiere, A ^[3]; Gelfand, J D ^[4]; Lemoine-Goumard, M ^[5]

Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
Kavli Institute for Particle Astrophysics and Cosmology, Stanford Linear Accelerator Center, Stanford, CA 94025 (United States)
Institut de Physique Nucleaire, IN2P3/CNRS, 15 rue Georges Clemenceau, 91400 Orsay (France)
Center for Cosmology and Particle Physics, New York University, Meyer Hall of Physics, 4 Washington Place, New York, NY 10003 (United States)
Centre d'Etudes Nucleaires Bordeaux Gradignan, Universite de Bordeaux, CNRS-IN2P3, UMR 5797, Gradignan 33175 (France)

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 {gamma}-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.

OSTI ID:: 21460139

Journal Information:: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 720; ISSN ASJOAB; ISSN 0004-637X

Country of Publication:: United States

Language:: English

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Non-thermal emission from Pulsar-Wind Nebulae in Starburst Galaxies Ohm, Stefan; Hinton, Jim arXiv https://doi.org/10.48550/arxiv.1210.8370	text	January 2012
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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 Anderson, Gemma E.; Gaensler, B. M.; Kaplan, David L. The Astrophysical Journal Supplement Series, Vol. 212, Issue 1 https://doi.org/10.1088/0067-0049/212/1/13	journal	April 2014

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79 ASTRONOMY AND ASTROPHYSICS
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X RADIATION

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