AstroNote 2020-149

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DRAFT
2020-07-31 15:27:40
Type: Object/s-Discovery/Classification
Spectroscopic classification of the bright NIR transient PGIR20eid/SN2020qmp as a young Type II supernova in UGC07125
Authors: K. De (Caltech), M. Hankins (Caltech), M. M. Kasliwal (Caltech), M. Ashley (UNSW), A. Babul (Columbia), J. Jencson (Arizona), V. Karambelkar (Caltech), R. M. Lau (ISAS/JAXA), A. Moore (ANU), E. O. Ofek (Weizmann), M. Sharma (Columbia), J. Sokoloski (Columbia), J. Soon (ANU), R. Soria (NAOC), T. Travouillon (ANU) on behalf of the Palomar Gattini-IR team
Source Group: Gattini
Abstract:
We report spectroscopic classification of the bright NIR transient PGIR20eid/SN2020qmp as a young Type II supernova in UGC07125.

The bright NIR transient PGIR20eid/AT2020qmp was discovered by the Palomar Gattini-IR survey (De et al. 2020; Moore and Kasliwal 2019) on UT 2020-07-30 and reported as a young supernova candidate in UGC07125 (ATel #13909, Astronote 2020-147). On UT 2020-07-31, we obtained a low resolution optical spectrum of the source with the SED Machine spectrograph (Blagorodnova et al. 2018) on the Palomar 60-inch telescope.

The spectrum shows broad P-Cygni features of the Balmer series and He I. Using SNID (Blondin and Tonry 2007) on the spectrum, we find a best match to the Type IIP SN 1999em at peak light, indicating a young Type II supernova. Further spectroscopic and photometric follow-up of this very nearby supernova is encouraged.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020qmp [PGIR20eid]12:08:44.430+36:48:19.36SN II0.00312:08:44.430+36:48:19.36SN II0.003