Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-12-22
Astronomy and Astrophysics
Astrophysics
22 pages, 5 figures, submitted to ApJ
Scientific paper
10.1086/590051
In the framework of a program for the monitoring of Supernovae in the Near-Infrared (NIR) carried out by the Teramo, Rome and Pulkovo observatories with the AZT-24 telescope, we observed the Supernova SN2006jc in the J,H,K photometric bands during a period of 7 months, starting ~36 days after its discovery. Our observations evidence a NIR re-brightening, peaking ~70 days after discovery, along with a reddening of H-K and J-H colors until 120 days from discovery. After that date, J-H seems to evolve towards bluer colors. Our data, complemented by IR, optical, UV and X-ray observations found in the literature, show that the re-brightening is produced by hot dust surrounding the supernova, formed in the interaction of the ejecta with dense circumstellar matter.
Arkharov Arkadi A.
Carlo Elisa Di
Corsi Chiara
Dolci Mauro
Efimova N. V.
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