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 (firstname.lastname@example.org)
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
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.