[vsnet-outburst 8673] New CVs from the CSS

[Taichi Kato]

  New CVs from the CSS:

===

ATEL #1416                                                           ATEL #1416

Title:          Spectroscopic Follow-up of Optical Transients from the Catalina
                Sky Survey
Author: Djorgovski, S.G., Glikman, E., Mahabal, A., Donalek, C., Drake,
                A., Williams, R., Graham, M. (Caltech), Nugent, P., Thomas, R., Hennawi,
                J. (LBL/UCB), Beshore, E., Larson, S. (LPL/UAz), Christensen, E. (Gemini
                Obs.)
Queries:        george at astro.caltech.edu
Posted: 6 Mar 2008;  23:24  UT
Subjects:       Optical, Cataclysmic Variables, Novae, Supernovae, Transients,
                Variables

Spectra of several optical transients from the Catalina Sky Survey, reported
earlier (Drake et al., ATEL #1388, ATEL #1399, ATEL #1404; Glikman et al.
ATEL #1413) were obtained at the Palomar 200-inch telescope using the Double
Spectrograph instrument, on the nights of UT 2008 March 1, 2, and 3.  Their
spectroscopic identifications are as follows:   

CSS080130:021110+171624 = Possible CV: a blue continuum with narrow
Balmer emission lines (alpha through epsilon, possibly higher); but no
obvious helium or other lines.   

CSS080213:024607-073833 = SN 2008al = SN Type II at z ~ 0.025, approx.
1 month past the maximum.  It was independently identified as such by Steele
et al. (CBET #1275).   

CSS080227:112633-100210 = CV, blue continuum with numerous H and He
lines in emission.   

CSS080227:160549+192717 = SN Type Ia at z ~ 0.03, approx. 1 month past
the maximum.   

CSS080228:105301-075656 = Probable SN, but a poor S/N does not allow
for a reliable typing.   

CSS080303:075520+203908 = SN Type II at z ~ 0.03, approx. 1 month past
the maximum.   

We also obtained spectra of CSS080227:113034+130905 = SN 2008au (Drake
et al., CBET #1278) and CSS080229:115214+301037, in poor conditions and
with a S/N too low to make definitive spectroscopic identifications.  

CSS transients reported in ATEL: http://voeventnet.caltech.edu/feeds/ATEL/CSS