Spectroscopic Classification of ASASSN-14bf and ASASSN-14ca
ATel #6249; J. L. Prieto (Princeton/Diego Portales), A. Porter, A. Kaur (Clemson), A. Wilber (ASU), B. J. Shappee, T. W.-S. Holoien, K. Z. Stanek, C. S. Kochanek, A. B. Davis, J. Jencson, U. Basu, J. F. Beacom (Ohio State), D. Szczygiel, G. Pojmanski (Warsaw University Observatory), J. Brimacombe (Coral Towers Observatory), D. Bersier (LJMU), C. E. Woodward (Minnesota), S. G. Starrfield (ASU), D. Hartmann (Clemson)
on 20 Jun 2014; 01:38 UT
Credential Certification: Jose L. Prieto (jose@obs.carnegiescience.edu)
Subjects: Optical, Cataclysmic Variable, Supernovae, Transient
We report spectroscopic observations and classification of ASASSN-14bf (ATel #6169) and ASASSN-14ca (ATel #6211, #6221). We obtained an spectrum of ASASSN-14bf with the MDM 2.4m + OSMOS (range 4000-6850 Angs., res. 3 Angs.) on UT June 6.2. The spectrum of ASASSN-14bf shows characteristics of a Type II SN. We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to perform cross-correlation with a library of SN spectra and found that the spectrum is most consistent with the Type IIP SN 2006bp at 30 days after explosion. After correcting for the redshift of the host galaxy, we measure a blueshifted H-alpha absorption velocity of -10000 km/s.
We obtained an spectrum of ASASSN-14ca with LBT 2x8m + MODS (range 3400-10000 Angs., res. 2.5 Angs.) on UT June 9. The spectrum shows a strong blue continuum, Balmer lines in absorption (with H-alpha showing absorption and also double-peaked emission lines at -440 and +330 km/s), and He II 4686 in emission. ASASSN-14ca is a CV in outburst (see also vsnet-alert 17369 and vsnet-alert 17371).
