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SED-Machine Classification of CSS140425:161024+470440 and ASASSN-14as

ATel #6113; N. Konidaris (Caltech), R. Quimby (Kavli IPMU), S. Ben-Ami (Weizmann), C. Ngeow (NCU Taiwan), E. Ofek (Weizmann), A. Ritter (NCU Taiwan), Y. C. Cheng (NCU Taiwan), P. C. Yu (NCU Taiwan)
on 3 May 2014; 13:45 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Robert Quimby (quimby@astro.as.utexas.edu)

Subjects: Optical, Supernovae

We obtained optical spectra (4000-10000 A) of CSS140425:161024+470440 and ASASSN-14as (ATel #6112) using the SED-Machine mounted on the Palomar 1.5-m Telescope. Based on our preliminary analysis, we report the following classifications using superfit (Howell et al. 2005, ApJ 634, 1190) and observed magnitudes (ignoring possible host galaxy contamination):

 
Name        |     RA      |     Dec     | Spec. Date | Type | Redshift |  r-band |  Notes 
CSS140425   | 16:10:23.61 | +47:04:40.3 |   May 2.5  |  Ia  |  0.03    |   16.4  |    1 
ASASSN-14as | 12:57:33.9  | +35:31:34.0 |   May 3.3  |  Ia  |  0.0374  |   17.4  |    2 

1) The phase of CSS140425 is likely near or before maximum light. The redshift is set approximately by template matching.

2) The phase of ASASSN-14as is likely around 10 days after maximum light. The redshift is from the host galaxy (via. NED).

The SED-Machine is a low resolution (R~100) integral-field spectrograph with a separate imaging channel. The instrument and data reduction software are currently being commissioned.