IGR J08390-4833 is a new cataclysmic variable from the INTEGRAL all-sky survey
ATel #1488; A. Kniazev (SAAO), M. Revnivtsev (MPA, IKI), S. Sazonov (MPA, IKI), R. Burenin (IKI), A. Tekola (SAAO)
on 25 Apr 2008; 15:41 UT
Credential Certification: M.Revnivtsev (mikej@hea.iki.rssi.ru)
Subjects: Optical, X-ray, Cataclysmic Variable
We report optical spectroscopic identification of the source
IGR J08390-4833 discovered by the INTEGRAL all-sky survey
(Sazonov et al. 2008, submitted to A&A, arXiv:0802.0928).
The position of the source was refined with the help of CHANDRA/ACIS
observations; a single strong X-ray source found within the INTEGRAL/IBIS
error circle was associated with an optical object at RA=08h 38m 49.11s,
Dec=-48d 31m 24.7s (Sazonov et al. 2008). This optical object was observed
on 9 April 2008 with the SAAO 1.9m telescope using the Cassegrain spectrograph.
The optical spectrum covering wavelengths 4000-7000A showed bright Balmer
emission lines with zero redshift, indicating that the object
resides in our Galaxy. The overall blue shape of the spectrum with a
sequence of bright Balmer lines is typical for accreting white dwarf
binaries - cataclysmic variables. Thus we classify this source as a CV.
