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Spectroscopic Classification of Optical Transients with Shane/Kast

ATel #13280; C. D. Kilpatrick, R. J. Foley (UCSC)
on 7 Nov 2019; 21:25 UT
Credential Certification: Charles Kilpatrick (cdkilpat@ucsc.edu)

Subjects: Optical, Supernovae

We report the following classifications of optical transients from spectroscopic observations with the Kast double spectrograph on the Shane 3-m telescope at Lick Observatory, Mt. Hamilton, California. Targets were supplied by ZTF. Observations were made on 2019 November 7 UT. The classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
Name         | IAU Name | RA (J2000)   | Dec (J2000)   | z      | Type  | Phase    | Notes
ZTF18accxltw | 2019tri | 21:17:07.028 | -06:43:27.57 | 0.029 | Ia | -2 | (1) ZTF18aaflyqi | 2019ubo | 07:50:17.644 | +09:13:54.69 | 0.054 | Ia | +1 | (2)

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 velocity of 10,800 km/s
(2) We measure a Si II velocity of 12,000 km/s