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Palomar 60-inch SEDM classification of optical transients

ATel #11512; Christoffer Fremling, Nadejda Blagorodnova, Thomas Kupfer, James D. Neill, Richard Walters, Christopher B. Cannella, Shrinivas R. Kulkarni (Caltech)
on 7 Apr 2018; 04:21 UT
Credential Certification: Christoffer Fremling (fremling@caltech.edu)

Subjects: Optical, Cataclysmic Variable, 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  
--------------|-------------|-------------|--------------|----------------|-----------------|----------|--------|---------------------|------  
    Gaia18atj |   AT2018aoa | 06:27:24.38 | +16:13:29.57 |     2018-03-28 | 16.72       (G) |     -    |     CV |          2018-04-02 | (1) 
    Gaia18arz |   AT2018ala | 05:20:33.82 | -00:05:30.34 |     2018-03-22 | 17.56       (G) |     -    |     CV |          2018-04-04 | (2) 
    Gaia18asl |   AT2018amu | 06:44:21.54 | -08:29:52.84 |     2018-03-24 | 17.67       (G) |     -    |      - |          2018-04-04 | (3) 
    Gaia18atg |   AT2018ans | 02:59:50.30 | +43:42:01.69 |     2018-03-26 | 13.76       (G) |     -    |      - |          2018-04-04 | (4) 
    Gaia18aue |   AT2018aow | 08:33:16.57 | -11:38:12.52 |     2018-03-29 | 17.64       (G) |     -    |     CV |          2018-04-04 |     
    Gaia18aug |   AT2018apa | 05:15:34.61 | +44:50:40.49 |     2018-03-30 | 17.14       (G) |     -    |     CV |          2018-04-04 |  
            - |   SN2018apk | 09:38:35.59 | +17:01:45.00 |     2018-04-02 | 17.00   (Clear) | 0.0280   |  SN Ia |          2018-04-04 | (5) 

Notes: (1) H and He consistent with a galactic dwarf nova. (2) H consistent with a galactic dwarf nova. (3) Red continuum. (4) Red continuum. (5) Best fit to SN2004eo at -4d. Spectroscopic redshift from SDSS.