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In the framework of a program for the monitoring of Supernovae in theNear-Infrared (NIR) carried out by the Teramo, Rome and Pulkovo observatorieswith the AZT-24 telescope, we observed the Supernova SN2006jc in the J,H,Kphotometric bands during a period of 7 months, starting ~36 days after itsdiscovery. Our observations evidence a NIR re-brightening, peaking ~70 daysafter discovery, along with a reddening of H-K and J-H colors until 120 daysfrom discovery. After that date, J-H seems to evolve towards bluer colors. Ourdata, complemented by IR, optical, UV and X-ray observations found in theliterature, show that the re-brightening is produced by hot dust surroundingthe supernova, formed in the interaction of the ejecta with dense circumstellarmatter.

Near-Infrared observations of the type Ib Supernova SN2006jc: evidence of interactions with dust