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Spectroscopic Classification of AT 2020inp with the Gemini North telescope

ATel #13768; Georgios Dimitriadis (UCSC), Charlotte Angus (DARK), Gautham Narayan (Illinois), Ryan J. Foley (UCSC), Jens Hjorth (DARK), Chien-Hsiu Lee (NOIRLab)
on 29 May 2020; 00:26 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Georgios Dimitriadis (gdimitri@ucsc.edu)

Subjects: Optical, Supernovae

We report the classification of AT 2020inp from spectroscopic observations with the GMOS-N spectrograph on the Gemini telescope. The target was supplied by the Young Supernova Experiment (YSE), and rapid target-of-opportunity observations were obtained under the program GN-2020A-Q-115 (PI: Narayan) on 2020 May 22 UT.

 
Name       | IAU Name  | RA (J2000)  | Dec (J2000)  |   z   | Type | Phase | Notes
PS20cpk | AT2020inp | 15:06:29.43 | +10:16:00.88 | 0.07 | Iax | +15d | (1)

Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) The transient's host galaxy matches SDSS J150629.39+101600.6, a faint galaxy with no cataloged redshift. The spectrum matches the prototypical Type Iax SN 2002cx, two weeks after maximum brightness, at a redshift of z ~ 0.07. Given that redshift, the transient peaked at approximately -17.5 in g-band, consistent with the classification.

We thank the Gemini Observatory staff for helping with these target-of-opportunity observations.