Nicolaus Copernicus Astronomical Center: Marek J. Sarna: Cooling

Cooling tracks for white dwarfs

with helium core

The binary stars at the beginning of mass transfer consist from 1.4 Msun neutron star and 1 Msun red giant with small helium core (Mcore < 0.05 Msun). In tables bellow we show cooling tracks for different white dwarfs masses. The metalicity is Z=0.020 where Zcno= 0.0100.

Pi=1.20d; Pf=0.736d; Mf=0.170Msun
Pi=1.50d; Pf=1.737d; Mf=0.183Msun
Pi=2.00d; Pf=4.230d; Mf=0.202Msun
Pi=2.50d; Pf=5.910d; Mf=0.209Msun
Pi=3.00d; Pf=7.686d; Mf=0.215Msun

sarna@camk.ed.pl

Milky Way : Courtesy of HST : 1997 Releases