Spectroscopic classification of two supernova by NUTS (Nordic Optical Telescope Un-biased Transient Survey)
ATel #9630; M. Nielsen (Aarhus U.), F. Taddia (OKC), M. Stritzinger (Aarhus U.), N. Elias-Rosa (INAF-Padova), S. Mattila (Turku), P. Lundqvist (Stockholm), M. Stritzinger (Aarhus U), H. Kuncarayakti (MAS, DAS), J. Harmanen (Turku), A. Pastorello (INAF-Padova), S. Benetti (INAF-Padova), E. Cappellaro (INAF-Padova), N. Blagorodnova (Caltech), S. Davis (FSU), S. Dong (KIAA-PKU), M. Fraser (University College Dublin), C. Gall (Aarhus U), D. Harrison (IoA), S. Hodgkin (IoA), E. Y. Hsiao (FSU), P. Jonker (SRON), T. Kangas (Turku), E. Kankare (QUB), Z. Kostrzewa-Rutkowska (Warsaw/SRON), P. Ochner (INAF-Padova), J. L. Prieto (UDP, MAS), T. Reynolds (Turku, NOT), C. Romero-Canizales (PUC, MAS), L. Tartaglia (INAF-Padova), G. Terreran (INAF-Padova/QUB), L. Tomasella (INAF-Padova), L. Wyrzykowski (Warsaw Observatory)
on 15 Oct 2016; 12:35 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Francesco Taddia (ftadd@astro.su.se)
Subjects: Optical, Supernovae
The NOT Unbiased Transient Survey (NUTS; ATel #8992) reports spectroscopic classification of: ASASSN-16lm in 2MASX J09033461+4142367 (Atel# 9611) and Master OT J025606.21+274206.8 in PGC090644 (Atel# 9593).
The observations were performed with the 2.56 m Nordic Optical Telescope equipped with ALFOSC (range 350-950 nm; resolution 1.6 nm).
Survey Name | IAU Name | Host galaxy | Discovery (UT) | Discovery mag | Observation (UT) | Redshift | Type | Phase | Notes
ASASSN-16lm | SN 2016haa | 2MASX J09033461+4142367 | 2016-10-09.61 | 18.9 | 2016-10-12.22 | 0.040 | Ia | post-max | (1)
Master OT J025606.21+274206.8 | SN 2016hbd | PGC090644 | 2016-10-03.99 | 16.8 | 2016-10-12.08 | 0.022 | IIP | near peak | (2)
(1) The spectrum of ASASSN-16lm is that of a type Ia supernova; best matches with the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) provides good matches to many normal type-Ia supernova at one week past maximum.
(2) Comparison with a library of spectra using SNID reveals this transient to be within a couple days of peak.
