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Spectroscopic Classification of ASAS-SN Supernovae

ATel #6882; B. J. Shappee (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), T. W.-S. Holoien, K. Z. Stanek, C. S. Kochanek, A. B. Davis, G. Simonian, U. Basu, N. Goss, J. F. Beacom (Ohio State), D. Bersier (LJMU), Subo Dong (KIAA-PKU), P. R. Wozniak (LANL), J. Brimacombe (Coral Towers Observatory), D. Szczygiel, G. Pojmanski (Warsaw University Observatory)
on 6 Jan 2015; 20:04 UT
Credential Certification: Benjamin Shappee (shappee@astronomy.ohio-state.edu)

Subjects: Optical, Supernovae

We report optical spectroscopic observations of ASAS-SN transients (ATel #6809, #6830, #6836, #6858, #6860, #6864, #6867) obtained on UT 2015 January 2-4 with IMACS (range 3600-9600 Angstroms, FWHM res. 4 Angstroms) mounted on the 6.5-m Magellan Baade Telescope. We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to aid with the type, phase and redshift of the SN spectra. We also measured the minimum of the Si II 6355 absorption trough in the Type Ia SNe around maximum light.

 
Name          | Disc. ATel | Spec. Type | Phase |  Redshift   | v(Si II) | Comments        | 
------------------------------------------------------------------------------------------- 
ASASSN-14lv   |    6809    |    Ia      | +29d  | 0.049(host) |          |                 | 
ASASSN-14me   |    6830    |    Ia      |  +0d  | 0.018(host) |  -10200  |                 | 
ASASSN-14mg   |    6836    |    Ia      | +28d  | 0.031(SN)   |          |                 | 
ASASSN-14mw   |    6858    |    Ia      |  -1d  | 0.0274      |  -12200  |                 | 
ASASSN-14my   |    6860    |    Ia      |  -1d  | 0.0205      |  -12200  |                 | 
ASASSN-15ab   |    6864    |    IIn     |       | 0.0178      |          | blue continuum  | 
ASASSN-15ad   |    6867    |    Ia      |  -1d  | 0.024(host) |  -11100  |                 | 

We note that ASASSN-14my was also classified as SN Ia in ATel #6876.

We thank LCOGT and its staff for their continued support of ASAS-SN. ASAS-SN is supported in part by Mt. Cuba Astronomical Foundation. For more information about the ASAS-SN project, see the ASAS-SN Homepage and the list of all ASAS-SN transients.