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

Abstract

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 resulting in clear detections of the nebula at 3.6 and 4.5 microns. 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.

4 pages, 4 figures, accepted for publication in ApJ Letters

References in corpus (4)

• Spitzer Space Telescope Infrared Imaging and Spectroscopy of the Crab Nebula
• Radio Images of 3C 58: Expansion and Motion of its Wisp
• A Shell of Thermal X-ray Emission Associated with the Young Crab-like Remnant 3C58
• Diffusive Synchrotron Radiation from Pulsar Wind Nebulae

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• Discovery of TeV gamma-ray emission from the pulsar wind nebula 3C 58 by MAGIC
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• {\it NuSTAR} hard X-ray studies of the pulsar wind nebula 3C~58
• Reverberation of pulsar wind nebulae (III): Modelling of the plasma interface empowering a long term radiative evolution
• Observations of three young gamma-ray pulsars with the Gran Telescopio Canarias
• A likely optical counterpart of the G292.0+1.8 pulsar wind nebula
• A complete radio study of SNR G15.4+0.1 from new GMRT observations
• The G292.0+1.8 pulsar wind nebula in the mid-infrared
• Exploiting Morphological Data from Pulsar Wind Nebulae via a Spatio-Temporal Leptonic Transport Code
• A polarized view of the young Pulsar Wind Nebula 3C 58 with IXPE
• Pulsar Wind Nebulae