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Near-Infrared follow-up of SN2011fe

ATel #3605; A. Arkharov, V. Larionov (Pulkovo Observatory), R. Carini, A. Di Paola (INAF-Roma), M. Dolci, E. Di Carlo (INAF-Teramo)
on 29 Aug 2011; 18:04 UT
Credential Certification: V. Larionov (vlar@astro.spbu.ru)

Subjects: Infra-Red, Supernovae

Referred to by ATel #: 3607

Following the alert in ATel#3581 we started NIR monitoring of SN2011fe=PTF11kly in JHK bands at 1.1-m telescope AZT-24 (Campo Imperatore, It.). We report following results: Aug.25 J=13.72, H=13.80, K=13.71; Aug.26 J=12.94, H=12.92, K=12.92; Aug.27 J=12.39, H=12.38, K=12.30; Aug.28 J=11.97, H=11.99, K=11.95. The typical errors in all bands are 0.02 mag. In the night of Aug.28UT we got low-resolution 0.82-1.35 mkm spectrum. We do not see any signs of Hydrogen features. There is a strong absorption feature identified with MgII (see also ATel#3599).