Dust formation in Nova Del 2013
ATel #5431; Shenavrin V. I., Taranova O. G., Tatarnikov A. M. (Sternberg Astronomical Institute of Moscow State University, Moscow, Russia)
on 28 Sep 2013; 19:38 UT
Credential Certification: Anna Tatarnikova (anna.2005@mail.ru)
Subjects: Infra-Red, Nova
We present the result of the IR photometry of Nova Del 2013 obtained at the Crimean Station (Nauchny, Ukraine) of the Sternberg Astronomical Institute.
JHKLM photometry was carried out with 125-cm telescope using a InSb-photometer on:
September 21.8 UT: J=5.88, H=5.85, K=5.03, L=3.68, M=3.26
September 27.8 UT: J=6.15, H=5.64, K=4.46, L=2.87, M=2.42.
BS7635 (J=0.79, H=0.03, K=-0.16, L=-0.36, M=-0.08) was used as a standard star. The observational errors do not exceed 0.03 for all bands.
K-L and L-M color indexes correspond to a warm dust envelope with Tdust of the order of 1000 K.
