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SN2006jc unusual infrared outburst

ATEL # 961; A. Arkharov and N. Efimova (Obs. Pulkovo - Russia); R. Leoni and A. Di Paola (INAF-Obs. Roma - Italy); E. Di Carlo and M. Dolci (INAF-Obs. Teramo - Italy)
on 13 Dec 2006; 9:24 UT
Distributed as an Instant Email Notice (Supernova)
Password Certification: Elisa Di Carlo (dicarlo@oa-teramo.inaf.it)

Subjects: Infra-Red, Nova, Supernova

We obtained additional near-IR magnitudes (J, H, K) of the SN2006jc (cf. IAUC # 8762 ; CBET #666, #671, #674 and #677; ATEL #916, #917 and #934) with the AZT-24 1.1m telescope and the SWIRCAM camera at Campo Imperatore Observatory (Italy). The values, calibrated using 2MASS catalog, are reported in the following. Photometric errors are of the order of 0.03 mag in each band. 2006 UT J H K Nov. 15.05 15.87 15.64 15.01 Nov. 16.05 --- 15.53 --- Nov. 24.05 15.93 15.47 14.64 Dec. 03.04 15.92 15.08 14.29 Dec. 06.04 15.88 15.01 14.20 The temporal evolution of measurements shows a near-infrared rebrightening of this peculiar type Ib/c supernova at this phase. This behaviour is not appreciable in the J band while it is quite evident in the H band and even more in the K band, suggesting some kind of relation with dust.


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