TRACE spectroscopic classification of optical transient

ATel #10055; C. Inserra, M. Childress, M. Sullivan (Southampton), R. Kotak, K. Maguire, D. Young, K. W. Smith, S. J. Smartt (QUB), P. Mazzali (Liverpool JMU), J. Tonry, K. Chambers, B. Stalder, M. Huber, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), A. Rest (STScI)
on 7 Feb 2017; 13:59 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

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TRACE, the Transient RApid Classification Experiment (PI: Inserra), reports the following supernova classification. The target was supplied by ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680). All observations were performed on the Liverpool Telescope at Roque de Los Muchachos on 2017 February 06, using SPRAT and Red Grism (4000-8000A, 18A resolution). Classification was done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). Classification spectrum and additional details can be obtained from the IAU Transient Name Server.

 
Survey Name | IAU Name  |  RA (J2000) | Dec (J2000) |  Disc. Date  | Source | Disc Mag |  Spec. Date |    z    | Type |   Phase    | Notes 
 
ATLAS17awu  | SN2017adi | 09 01 38.99 | +20 44 57.6 |  20170205.39 | ATLAS  |   18.1   | 20170207.09 | 0.03128 |  Ia  | -7 to -4   | (1) 

(1) SNID gives best match with several normal Ia before peak