作者: B. Kalomeni , L. Nelson , S. Rappaport , M. Molnar , J. Quintin
DOI: 10.3847/1538-4357/833/1/83
关键词: White dwarf 、 Orbital period 、 Physics 、 Stars 、 Star (game theory) 、 Binary number 、 Astrophysics 、 Gravitational wave 、 Stellar evolution 、 Center (category theory)
摘要: We present a binary evolution study of cataclysmic variables (CVs) and related systems with white dwarf accretors, including for example, AM CVn systems, classical novae, supersoft X-ray sources, giant donor stars. Our approach intentionally avoids the complications associated population synthesis algorithms thereby allowing us to first truly comprehensive exploration all subsequent pathways that ZACVs might follow (assuming fully non-conservative, Roche-lobe overflow onto an accreting WD) using sophisticated stellar code MESA. The grid consists 56,000 initial models, 14 accretor masses, 43 donor-star masses ($0.1-4.7$ $M_{\odot}$), 100 orbital periods. explore tracks in period donor-mass ($P_{\rm orb}-M_{\rm don}$) plane terms dwell times, accretor, accretion rate, chemical composition center surface star. report on differences among standard CV tracks, those stars, ultrashort systems. show where parameter space one can expect find diagnostic distinguish different evolutionary paths forming binaries, quantify how minimum CVs depends star, update $P_{\rm orb}(M_{\rm wd})$ relation binaries containing dwarfs whose progenitors lost their envelopes via stable overflow. Finally, we indicate don}$ disks will tend be against thermal-viscous instability, gravitational radiation signatures may found LISA.