TNS Classification Report No. 20872 [ 2025TNSCR1459....1M ]

Date Received (UTC): 2025-04-20 08:45:49
Sender: Andrea Reguitti
Group: Padova-Asiago

L. Magill, R. Kotak, M. Fraser, S. Smartt (QUB), P. Ochner, A. Pastorello, S. Benetti (INAF-OAPd), A. Harutunyan (TNG) report/s a classification of object: AT 2011kp

Type: LRN
Redshift: 0.002265

Remarks: Classified as a LRN by Smith et al. 2016 and Pastorello et al. 2019.

The following Classification spectrum was provided:

Obsdate: 2011-08-19 21:36:00
Instrument: DOLORES
Telescope: Telescopio Nazionale Galileo

Remarks: The spectrum is dominated by narrow Balmer lines in emission, superimposed on a relatively blue continuum. The FWHM of the H_alpha feature -- which does not exhibit a multi-component profile -- is about 1200 km/s. The only other features apparent are most likely due to a blend of Fe II features between 510 and 550 nm, and a feature at 454 nm that is also due to Fe II. The spectrum is reminiscent of that of a supernova impostor.

Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2011kp