Nearby Supernova Factory II Spectroscopic Classification of LSQ12hzj, LSQ13g and Potential Outburst of a Blazer candidate: LSQ13b

ATel #4701; Y. Copin, E. Gangler, R. Pereira, M. Rigault, G. Smadja (IPNL); G. Aldering, D. Birchall, H. Fakhouri, A. Kim, J. Nordin, P. Nugent, S. Perlmutter, K. Runge, C. Saunders, N. Suzuki, R. C. Thomas (LBNL); E. Pecontal (CRAL); U. Feindt, M. Kowalski (U. Bonn); S. Benitez, W. Hillebrandt, M. Kromer, M. Sasdelli, A. Sternberg, S. Taubenberger (MPA); D. Baugh, J. Chen, N. Chotard, C. Wu (THCA); C. Tao (CPPM & THCA), D. Fouchez, A. Tilquin (CPPM); E. Hadjiyska, D. Rabinowitz, C. Baltay, N. Ellman, R. McKinnon, E. Walker, A. Effron (Yale); F. Cellier-Holzem, A. Canto, P. Antilogus, S. Bongard, R. Pain (LPNHE)
on 5 Jan 2013; 05:24 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Nao Suzuki (nsuzuki@lbl.gov)

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The Nearby Supernova Factory II (http://snfactory.lbl.gov) reports the following spectroscopic observations of supernovae based on spectra (range 320-1000 nm) obtained with the SuperNova Integral Field Spectrograph (Aldering et al 2002, SPIE, 4836, 61) on the University of Hawaii 2.2-meter telescope. Classifications were performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). Heliocentric redshifts listed to two decimal places are measured from supernova features; all others are published values or measured by us from host galaxy features.

 
Name          |  RA (J2000) | Dec (J2000) |  Discovery  | Discovery | Disc. |  Spectrum  | Redshift    | Type   | Phase | Notes 
              |             |             |  Date (UTC) |   Source  | Mag   | Date (UTC) |             |        |       | 
LSQ12hzj      | 09:59:12.43 | -09:00:08.3 |  20121228   |     LSQ   | 18.38 | 20130104   | 0.03        | SN Ia  |  -5   | 
LSQ13b        | 11:23:33.52 | -20:20:13.0 |  20130103   |     LSQ   | 18.05 | 20130104   | 0.92?       | Blazar?|  N/A  | [1] 
LSQ13g        | 12:59:42.90 | -19:42:17.8 |  20130103   |     LSQ   | 18.10 | 20130104   | 0.07        | SN Ia  |  +8   | 

[1] Potential outburst of a reddened blazar. Point source is found in faint host galaxy (> 20.8 mag), and broad emission features (a few hundred Angstroms wide) are seen in the spectrum around 3673 and 5367 Angstrom. If we assume they are CIII](1906A) and MgII (2800A) respectively, the object is at z=0.92. This object is very red in color based on preliminary-calibrated spectrum (g-r=0.6, r-i=0.6 in SDSS AB mag). This object is also detected as a radio source (Condon et al. 1998, AJ, 115, 1693 and 7 other references can be found via NED)