The white dwarf binary V709 Cas shows refined periods (5.3329 h, 312.7478 s, 317.9267 s) and time-variable accretion geometry consistent with a two-pole disc-overflow accretor.
INTEGRAL Broadband X-ray spectrum of the intermediate polar V709 Cas
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abstract
We present the hard X-ray time-averaged spectrum of the intermediate polar V709 Cas observed with INTEGRAL. We performed the observation using data from the IBIS/ISGRI instrument in the 20-100 keV energy band and from JEM-X at lower energy (5-20 keV). Using different multi-temperature and density X-ray post-shock models we measured a improved post-shock temperature of ~40 keV and estimated the V709 Cas mass to be 0.82(+0.12/-0.25} Msun. We compare the resulting spectral parameters with previously reported BeppoSAX and RXTE observations.
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Long-term Optical Photometry of V709 Cas Using TESS : Refined Periods and Accretion Geometry
The white dwarf binary V709 Cas shows refined periods (5.3329 h, 312.7478 s, 317.9267 s) and time-variable accretion geometry consistent with a two-pole disc-overflow accretor.