Dwarf Nova TSS J022216.4+412260
ATel #658; R. Quimby, M. Sellers, P. Mondol (U. Texas) and The Nearby Supernova Factory: P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), N. Blanc, S. Bongard, Y. Copin, E. Gangler, L. Sauge, G. Smadja (Institut de Physique Nucleaire de Lyon), G. Aldering, S. Bailey, D. Kocevski, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, R. Scalzo, R. C. Thomas, L. Wang, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), C. Bonnaud, E. Pecontal (Centre de Recherche Astronomique de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
on 19 Nov 2005; 19:03 UT
Credential Certification: Robert Quimby (quimby@astro.as.utexas.edu)
Subjects: Optical, Cataclysmic Variable, Transient
We report the discovery of an optical transient using unfiltered CCD
images taken on November 16.1 UT (about 15.5 mag) and November 17.1 (also
about 15.5 mag) using the 0.45m ROTSE-IIIb telescope at the McDonald
Observatory. The object is located at RA = 02h22m16.4s DEC = +41o22'59.9"
(J2000; uncertainty +/- 0.5"). TSS J022216.4+412260 was not detected in
ROTSE-IIIb data from November 15.1 UT (limiting mag about 16.5).
The Nearby Supernova Factory adds that a spectrum (range 320-1000 nm) of
TSS J022216.4+412260 obtained November 18.6 UT with the Supernova Integral
Field Spectrograph on the University of Hawaii 2.2-meter telescope, shows
it to be a dwarf nova in outburst. The spectra reveal a blue continuum with
prominent H-alpha and HeII 4686 emission lines.
