The Astrophysical Journal Letters

The Astrophysical Journal Letters

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The Astrophysical Journal Letters Volume 676 Number 1 Create an alert RSS this journal

P. Slane et al 2008 ApJ 676 L33 doi:10.1086/587031

The Infrared Detection of the Pulsar Wind Nebula in the Galactic Supernova Remnant 3C 58

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P. Slane1, D. J. Helfand2, S. P. Reynolds3, B. M. Gaensler4, A. Lemiere1 and Z. Wang5

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Abstract References Cited By
We present infrared observations of 3C 58 with the Spitzer Space Telescope and the Canada-France-Hawaii Telescope. Using the IRAC camera, we have imaged the entire source, which results in clear detections of the nebula at 3.6 and 4.5 μm. The derived flux values are consistent with extrapolation of the X-ray spectrum to the infrared band, demonstrating that any cooling break in the synchrotron spectrum must occur near the soft X-ray band. We also detect the torus surrounding PSR J0205+6449, the 65 ms pulsar that powers 3C 58. The torus spectrum requires a break between the infrared and X-ray bands, and perhaps multiple breaks. This complex spectrum, which is an imprint of the particles injected into the nebula, has considerable consequences for the evolution of the broadband spectrum of 3C 58. We illustrate these effects and discuss the impact of these observations on the modeling of broadband spectra of pulsar wind nebulae.

Subject headings

ISM: individual (3C 58); pulsars: general; pulsars: individual (PSR J0205+6449); supernova remnants


Dates

Issue 1 (2008 March 20)

Received 2008 January 14, accepted for publication 2008 February 1

Published 2008 March 3



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