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 (email@example.com)
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).