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Spectroscopic classification of SN 2017bgu by NUTS (NOT Un-biased Transient Survey)

ATel #10120; M. Stritzinger, S. Holmbo (Aarhus U), S. Dong (KIAA-PKU), C. Gall (DARK, Copenhagen U), and J. Prieto-Arranz (IAC), on behalf of the NUTS collaboration
on 24 Feb 2017; 12:28 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Christa Gall (christa@dark-cosmology.dk)

Subjects: Optical, Supernovae, Transient

The Nordic Optical Telescope (NOT) Unbiased Transient Survey (NUTS; ATel #8992) collaboration reports the spectroscopic classification of SN 2017bgu (ATLAS17bem) in the host galaxy 2MASX J16555976+4233370. The transient was discovered by the ATLAS survey (see Tonry et al. ATel #8680). The target was also detected by the All-Sky Automated Survey for Supernovae (ASAS-SN) at V = 17.0 +/- 0.1 on UT 2017-02-22.66. The object had not been detected in ASAS-SN images taken on 2017-02-16 and before.

The observation was performed with the 2.56 m Nordic Optical Telescope equipped with ALFOSC on 2017-02-24.2 UT (range 350-950 nm; resolution 1.6 nm).

Name        |  IAU Name     |  Redshift    |  Discovery (UT)  |  Discovery mag |  Type      | Phase    | Notes 
ATLAS17bem  |  SN 2017bgu   |  0.009       |  2016-11-24.2    |  16.9          |  Ib-norm   | maximum  | (1) 

(1) Good spectral matches are obtained using the Supernova Identification tool SNID with spectra of the normal Type Ib SN 1998dt and SN 1999dn at maximum. The redshift is obtained from the NED.

Classification was performed using the SNID (Blondin and Tonry 2007, ApJ, 666, 1024) tools.