Spectroscopic classification of ASASSN-16gn with the Nordic Optical Telescope
ATel #9208; M. Fraser (IoA), N. Elias-Rosa (INAF-Padova), S. Mattila (Turku), P. Lundqvist (Stockholm), M. Stritzinger (Aarhus U), S. Benetti (INAF-Padova), E. Cappellaro (INAF-Padova), N. Blagorodnova (Caltech), S. Davis (FSU), S. Dong (KIAA-PKU), C. Gall (Aarhus U), J. Harmanen (Turku), D. Harrison (IoA), S. Hodgkin (IoA), E. Y. Hsiao (FSU), P. Jonker (SRON), T. Kangas (Turku), E. Kankare (QUB), H. Kuncarayakti (MAS, DAS), Z. Kostrzewa-Rutkowska (Warsaw/SRON), M. Nielsen (Aarhus U), P. Ochner (INAF-Padova), A. Pastorello (INAF-Padova), J. L. Prieto (UDP, MAS), T. Reynolds (Turku, NOT), C. Romero-Canizales (MAS, UDP), K. Stanek (OSU), F. Taddia (OKC), L. Tartaglia (INAF-Padova), G. Terreran (INAF-Padova/QUB), L. Tomasella (INAF-Padova), L. Wyrzykowski (Warsaw Observatory)
on 4 Jul 2016; 17:36 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Morgan Fraser (mf@ast.cam.ac.uk)
Subjects: Optical, Supernovae, Transient
The NOT Unbiased Transient Survey (NUTS; ATel #8992) collaboration reports the spectroscopic
classification of ASASSN-16gn in SDSS J120657.56+271806.0. The candidate was discovered by
the All-Sky Automated Survey for Supernovae (ASAS-SN, ATEL#9086).
The observations were performed with the 2.56 m Nordic Optical Telescope
equipped with ALFOSC (range 350-950 nm; resolution 0.34 nm) on 2016-07-03 UT.
Name | Host galaxy | Redshift | Discovery (UT) | Discovery mag | Type | Phase | Notes
ASASSN-16gn | SDSS J120657.56+271806.0 | 0.0560 | 2016-06-26.27 | 17.3 | IIn | ? | (1)
(1) Redshift from SDSS (ATel #9194). The spectrum is very blue, and largely featureless. The strongest line is HeI 5876, which has a P-Cygni profile with a minimum at -1200 km/s. The spectrum is similar to other Type Ibn SNe such as SN 2010al (Pastorello et al. 2015, MNRAS, 449, 1921).
The classification spectrum is posted on WISeREP (Yaron & Gal-Yam 2012, PASP, 124, 668).
