Abstract The evolution and the stability of mass transfer CO+He white dwarf (WD) binaries are not well understood. Observationally they may emerge as AM CVn important gravitational wave (GW) emitters. In this work, we have modeled double WD with accretor masses 0.50–1.30 M ⊙ donor 0.17–0.45 using detailed stellar code mesa . We find that same but different is very similar larger He maximum rate...

We present a study of the X-ray coronal emission from the active binary VY Ari, using data from both the Low Energy Concentrator Spectrometer (LECS) and the Medium Energy Concentrator Spectrometer (MECS) instruments onboard the X-ray satellite BeppoSAX. Using these instruments, the X-ray spectrum of VY Ari can be studied across two full decades of energy, from 0.1 to 10 keV. The spectrum is wel...

We present a study of the X-ray coronal emission from the active binary VY Ari, using data from both the Low EnergyConcentrator Spectrometer (LECS) and theMediumEnergy Concentrator Spectrometer (MECS) instruments on-board the X-ray satellite BeppoSAX. Using these instruments, the Xray spectrum of VY Ari can be studied across two full decades of energy, from 0.1 to 10 keV. The spectrum is well f...