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Spectroscopic classification of ASASSN-17pi (SN 2017iha) by NUTS (NOT Un-biased Transient Survey)

ATel #11021; H. Kuncarayakti, S. Mattila, J. Harmanen, T. Reynolds (Turku), A. Somero (MAGIC/Turku), T. Kangas (STScI), T. Wevers (Cambridge), P. Lundqvist, F. Taddia, M. Ergon (Stockholm), on behalf of NUTS collaboration
on 28 Nov 2017; 12:52 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Hanindyo Kuncarayakti (kuncarayakti@gmail.com)

Subjects: Optical, Supernovae

The NOT Unbiased Transient Survey (NUTS; ATel #8992) collaboration reports the spectroscopic classification of supernova ASASSN-17pi (= SN 2017iha) in host galaxy 2MASX J08572853+2836599.

The observations were performed with the 2.56 m Nordic Optical Telescope equipped with ALFOSC (range 350-950 nm; resolution 1.6 nm) on 2017-11-28.2 UT.

Survey Name | IAU Name   | Discovery (UT) | Discovery mag | Observation (UT) | Redshift | Type | Phase        | Notes  
ASASSN-17pi | SN 2017iha | 2017-11-19.4   | 17.5          | 2017-11-28.2     | 0.048    | Ia   | post-maximum | (1)  

(1) SN redshift is consistent with that of the host (NED). Good spectral match is obtained with spectra of several normal type-Ia SNe 1-3 weeks after maximum light.

Classifications were performed using the GELATO (Harutyunyan et al. 2008, A&A, 488, 383) and SNID (Blondin and Tonry 2007, ApJ, 666, 1024) tools. Calibrated spectra and additional information can be retrieved in the IAU Transient Name Server.