Palomar 60-inch SEDM classification of optical transients
ATel #11571; Christoffer Fremling, Nadejda Blagorodnova, James D. Neill, Richard Walters, Christopher B. Cannella, Shrinivas R. Kulkarni (Caltech)
on 25 Apr 2018; 01:43 UT
Credential Certification: Christoffer Fremling (fremling@caltech.edu)
Subjects: Optical, Supernovae, Transient
We report the classification of the following bright transients. The spectra have been obtained with the Spectral Energy Distribution Machine (SEDM) (range 350-950nm, spectral resolution R~100) mounted on the Palomar 60-inch (P60) telescope (Blagorodnova et. al. 2018, PASP, 130, 5003). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Survey Name | IAU Name | RA (J2000) | Dec (J2000) | Discovery date | Discovery mag | Redshift | Class | Classification Date | Notes
--------------|-------------|-------------|--------------|----------------|-----------------|----------|--------|---------------------|------
Gaia18azf | SN2018avz | 13:59:05.49 | +58:16:06.13 | 2018-04-16 | 17.84 (G) | 0.0606 | SN Ia | 2018-04-21 | (1)
ATLAS18nfr | SN2018awd | 12:50:28.57 | -22:40:36.11 | 2018-04-15 | 18.45 (orange) | 0.0451 | SN I | 2018-04-22 | (2)
ATLAS18nlu | SN2018azu | 07:17:55.94 | +40:59:07.88 | 2018-04-12 | 17.63 (orange) | 0.0230 | SN Ia | 2018-04-24 | (3)
ATLAS18nly | SN2018bac | 10:42:42.16 | +25:59:41.16 | 2018-04-19 | 18.16 (cyan) | 0.0372 | SN Ia | 2018-04-24 | (4)
(1) Best fit to SN 1989b at +6d. Spectroscopic redshift from SDSS. (2) Good fits to both SNe Ia and Ic. Spectroscopic redshift from SDSS. (3) Best fit to SN 1994d at -10d. Associated with the galaxy pair UGC 03781. Spectroscopic redshift. (4) Best fit to SN 1990n at -6d. Spectroscopic redshift from SDSS.
