Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 763, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/763/1/L4
Keywords
ISM: individual objects: (3C 58)
Categories
Funding
- [AYA2009-07391]
- [AYA2012-39303]
- [SGR2009-811]
- [TW2010005]
- [iLINK2011-0303]
- ICREA Funding Source: Custom
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We present a time-dependent spectral model of the nebula 3C 58 and compare it with available data. The model is for a leptonic nebula in which particles are subject to synchrotron, inverse Compton, self-synchrotron Compton, adiabatic, and bremsstrahlung processes. We find that 3C 58 is compatible with being a particle-dominated nebula, with a magnetic field of 35 mu G. A broken power-law injection fits well the multi-frequency data, with a break energy at about 40 GeV. We find that 3C 58 is not expected to appear in VERITAS or MAGIC II, unless the local IR background is a factor of similar to 20 off Galactic models' averages. For cases in which the cosmic microwave background dominates the inverse Compton contribution, we find that 3C 58 will not be visible either for the Cherenkov Telescope Array.
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