PSN J10524126+3640086 is the Continued Outburst of SN 2000ch
ATel #4891; Schuyler D. Van Dyk (IPAC/Caltech), S. Bradley Cenko, Kelsey I. Clubb, Ori D. Fox, WeiKang Zheng, Patrick L. Kelly, Alexei V. Filippenko (UC Berkeley), and Nathan Smith (University of Arizona)
on 16 Mar 2013; 19:51 UT
Credential Certification: Schuyler D. Van Dyk (vandyk@ipac.caltech.edu)
Subjects: Optical, Supernovae, Transient
We obtained a spectrum of the object PSN J10524126+3640086 (Nevski et al., IAU CBAT Transient Objects Confirmation Page) on 2013 March 11 UT with the Keck-I 10-m telescope, using the Low Resolution Imaging Spectrometer (LRIS). The spectrum is dominated by strong, but relatively narrow, Balmer emission lines. In fact, the spectrum is essentially identical to the spectrum from 2000 May 31 UT of the unusual luminous blue variable, or "SN impostor," SN 2000ch (see Wagner et al. 2004, PASP, 116, 326), at or very near this same position. We therefore consider PSN J10524126+3640086 to be an additional manifestation of the sustained outburst from SN 2000ch (Pastorello et al. 2010, MNRAS, 408, 181) and not a new event. Continued monitoring is ongoing. A comparison of the PSN J10524126+3640086 spectrum with that of SN 2000ch can be found at the link below. No flux scaling has been applied to the SN 2000ch spectrum to match that of PSN J10524126+3640086.
Comparison of the PSN J10524126+3640086 spectrum with that of SN 2000ch
