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Spectroscopic Classifications of Optical Transients with Mayall/KOSMOS

ATel #9816; Y.-C. Pan, M. A. Garcia, R. J. Foley (UCSC), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)
on 2 Dec 2016; 01:23 UT
Credential Certification: Yen-Chen Pan (ypan6@ucsc.edu)

Subjects: Optical, Supernovae

Referred to by ATel #: 9822, 9829

We report the following classifications of optical transients from spectroscopic observations with KOSMOS on the KPNO Mayall 4-m telescope. Targets were supplied by the ATLAS and ASAS-SN. All observations were made on 2016 Dec 01 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
Name | RA (J2000) | Dec (J2000) | z | Type  | Phase | Notes
AT2016ipd | 01:53:34.36 | +31:17:43.65 | 0.036 | Ia | -3d | (1) AT2016ijj | 01:55:23.55 | +21:17:10.05 | 0.041 | Ia | -1d | (2) AT2016ipi | 05:48:27.02 | -23:19:25.39 | 0.046 | Ia | -2d | (3) AT2016iol | 11:41:56.17 | +12:35:09.96 | 0.034 | Ia | +9d | AT2016hsw | 03:50:36.44 | +13:54:50.96 | 0.037 | Ia | +20d |

Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure a Si II 6355 velocity of -10,100 km/s. (2) We measure a Si II 6355 velocity of -11,800 km/s. (3) We measure a Si II 6355 velocity of -10,700 km/s.