Classification certificate for object 2019sgf
TNS Classification Report No. 5286 [ 2019TNSCR2086....1K ]

Date Received (UTC): 2019-10-15 15:48:30
Sender: Adam Kawash
Group: None

Adam Kawash report/s a classification of object: AT 2019sgf

Type: CV

Remarks: Spectrum is that of a dwarf nova in outburst and suggests the progenitor system be a magnetic CV, consistent with the conclusions from ATels 13176 and 13190.

The following Classification spectrum was provided:

Obsdate: 2019-10-10 09:31:56
Instrument: BC-OSU
Telescope: MDM 2.4m Hiltner

Remarks: The spectrum is dominated by Balmer and He I lines. Halpha and Hbeta show a narrow emission on top of an absorption, typical for a dwarf nova outburst. We also identify He II 4686 in emission which indicates that the progenitor system might be a magnetic CV, consistent with the conclusions from ATels 13176 and 13190.

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2019sgf