Classification certificate for object 2011dv
TNS Classification Report No. 2091 [ 2018TNSCR.783....1B ]

Date Received (UTC): 2018-06-08 22:30:12
Sender: Mr. Dave Balam
Group: DAO_OTS

Dave Balam report/s a classification of object: SN 2011dv

Type: SN Ia
Redshift: 0.031

The following Classification spectrum was provided:

Obsdate: 2011-06-30 05:54:21
Instrument: Plaskett
Telescope: Dominion AStrophysical Observatory

Remarks: D. D. Balam, Dominion Astrophysical Observatory, National Research Council of Canada (NRCC); M. L. Graham, Las Cumbres Observatory Global Telescope, University of California at Santa Barbara; E. Y. Hsiao, Lawrence Berkeley Laboratory; and D. W. E. Green, Harvard University, report that a spectrogram (range 389-725 nm., resolution 0.3 nm) of PSN J16120400+1412330 = SN 2011dv, obtained on June 30.27 UT with the 1.82-m Plaskett Telescope of the NRCC, shows it to be a type-Ia supernova about five days past maximum light. Cross-correlation with a library of supernova spectra using the SNID code indicates that 2011dv is most similar to the type-Ia supernova 2006gz at five days past maximum light.

Details of the object and its spectra can be viewed here: