TNS Classification Report No. 1234 [ 2017TNSCR1033....1G ]
Date Received (UTC): 2017-09-25 17:20:11 Sender: Dr. Lluís Galbany
Group: None
Lluís Galbany (U. Pittsburgh), Jorge Martínez (U. Chile) report/s a classification of object: SN 2017gvr
Type: SN Ib-pecRedshift: 0.109
Remarks: Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find relatively good fits to several Type Ib supernovae around a week before maximum light at a redshift z=0.109, however, none of the fits is able to perfectly fit the shallow He I absorptions. In addition, this supernova has been rising for more than a month already.
The following Classification spectrum was provided:
Obsdate: 2017-09-23 06:15:00
Instrument: LDSS-3
Telescope: Landon T. Clay Magellan 6.5-m telescope (LCO)
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2017gvr
Date Received (UTC): 2017-09-25 17:20:11 Sender: Dr. Lluís Galbany
Group: None
Lluís Galbany (U. Pittsburgh), Jorge Martínez (U. Chile) report/s a classification of object: SN 2017gvr
Type: SN Ib-pecRedshift: 0.109
Remarks: Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find relatively good fits to several Type Ib supernovae around a week before maximum light at a redshift z=0.109, however, none of the fits is able to perfectly fit the shallow He I absorptions. In addition, this supernova has been rising for more than a month already.
The following Classification spectrum was provided:
Obsdate: 2017-09-23 06:15:00
Instrument: LDSS-3
Telescope: Landon T. Clay Magellan 6.5-m telescope (LCO)
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2017gvr