Bibcode
Gänsicke, B. T.; Marsh, T. R.; Edge, A.; Rodríguez-Gil, P.; Steeghs, D.; Araujo-Betancor, S.; Harlaftis, E.; Giannakis, O.; Pyrzas, S.; Morales-Rueda, L.; Aungwerojwit, A.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 361, Issue 1, pp. 141-154.
Fecha de publicación:
7
2005
Número de citas
52
Número de citas referidas
45
Descripción
We report the first results from a new search for cataclysmic variables
(CVs) using a combined X-ray (ROSAT)/infrared (2MASS) target selection
that discriminates against background active galactic nuclei.
Identification spectra were obtained at the Isaac Newton Telescope for a
total of 174 targets, leading to the discovery of 12 new CVs. Initially
devised to find short-period low-mass-transfer CVs, this selection
scheme has been very successful in identifying new intermediate polars.
Photometric and spectroscopic follow-up observations identify four of
the new CVs as intermediate polars: 1RXSJ063631.9+353537
(Porb~= 201min, Pspin= 1008.3408s or 930.5829s),
1RXSJ070407.9+262501 (Porb~= 250min, Pspin=
480.708s), 1RXSJ173021.5-055933 (Porb= 925.27min,
Pspin= 128.0s), and 1RXSJ180340.0+401214 (Porb=
160.21min, Pspin= 1520.51s). RXJ1730, also a moderately
bright hard X-ray source in the INTEGRAL/IBIS Galactic plane survey,
resembles the enigmatic AEAqr. It is likely that its white dwarf is not
rotating at the spin equilibrium period, and the system may represent a
short-lived phase in CV evolution.