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Spectroscopic Classification of Three Supernovae with the Xinglong 2.16-m Telescope

ATel #10093; Danfeng Xiang, Linyi Li, Xinhan Zhang, Liming Rui, Xiaofeng Wang (Tsinghua University), Tianmeng Zhang (NAOC), Jujia Zhang (YNAO)
on 18 Feb 2017; 14:38 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Xiaofeng Wang (wang_xf@mail.tsinghua.edu.cn)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 10094

We report the classifications of the following three transients from the surveys of iPTF, ASASSN, and Master Robertic Net. The spectroscopic observations were performed with the Xinglong 2.16-m telescope (+BFOSC) on 2017 Feb. 17. Classifications were performed with the SNID code (Blondin & Tonry, 2007, ApJ, 666, 1024). Classification spectra of SNe 2017aub and 2017auf and their detailed information are also available on the IAU Transient Name Server.

Survey Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
iPTF17aub | SN2017aub | 06:40:24.70 | +64:33:02.75| 0.014 | II | +2d | (1)
ASASSN-17cl | SN2017auf | 05:02:19.56 | -10:21:22.86 | 0.0133 | II | -3d | (2)
MASTER OT J083256.92-035128.1| |08:32:56.92|-03:51:28.1|0.037| Ia | -10 | (3)


(1) Blue continuum. Likely a young type II SN. Host-galaxy Redshift is obtained from the SNID fit to the SN spectrum.
(2) Blue continuum. Likely a young type II SN.
(3) Likely a young type Ia. Host-galaxy Redshift is obtained from the SNID fit to the SN spectrum. We measure a SiII velocity of about 11600 km/s.