Free Access

Fig. 7


Mass-radius relation exponent ζL (Sect. 3.2) for various modes of mass transfer from a zero-temperature helium white dwarf to a neutron star of initially 1.4   M with a 12   km radius. The lower dotted curve shows the case of accretion efficiency ϵ = 0 and full feedback (η = 0) (almost all transferred matter lost via isotropic re-emission, hardly any accretion). The middle dotted curve is for ϵ = 1 and η = 0 (conservative mass transfer). The upper dotted curve is for no feedback (η = 1). The zero-temperature white dwarf exponent ζd (Sect. 3.3) is represented by the dashed curve. The solid curves starting at q = 0.59 (Md = 0.83   M, Sect. 2.3) indicate the actual value of ζL (for ϵ shown in Fig. 4) for both the full feedback and no-feedback case. Until q = 0.01 there is full feedback in either case. Below q = 0.01 the full feedback case is shown by the lower solid branch, where the open circle denotes an age of 10 Gyr (since the onset of mass transfer). The no-feedback case has a jump in ζL at q = 0.01, after which it follows the upper dotted curve until the intersection with the dashed curve (filled circle) where donor disruption occurs at a system age of 300 Myr.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.