Bibcode
Cruciani, A.; Battistelli, E. S.; Carretti, E.; de Bernardis, P.; Genova-Santos, R.; Masi, S.; Mason, B.; Perera, D.; Piacentini, F.; Reach, B.; Rubino-Martin, J. A.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 459, Issue 4, p.4224-4232
Fecha de publicación:
7
2016
Número de citas
14
Número de citas referidas
14
Descripción
We have observed the supernova remnant 3C 396 in the microwave region
using the Parkes 64-m telescope. Observations have been made at 8.4,
13.5, and 18.6 GHz and in polarization at 21.5 GHz. We have used data
from several other observatories, including previously unpublished
observations performed by the Green Bank Telescope at 31.2 GHz, to
investigate the nature of the microwave emission of 3C 396. Results show
a spectral energy distribution dominated by a single component power-law
emission with α = (-0.364 ± 0.017). Data do not favour the
presence of anomalous microwave emission coming from the source.
Polarized emission at 21.5 GHz is consistent with synchrotron-dominated
emission. We present microwave maps and correlate them with infrared
(IR) maps in order to characterize the interplay between thermal dust
and microwave emission. IR versus microwave TT plots reveal poor
correlation between mid-IR and microwave emission from the core of the
source. On the other hand, a correlation is detected in the tail
emission of the outer shell of 3C 396, which could be ascribed to
Galactic contamination.