I should have specified that I am comparing it to the kinetic energy of the supernova explosion which is on the order of 10^44 J. This is where I am confused.
Ok, after calculating. I get (-5.6*10^43 Joules) for the white dwarf and (-2.82*10^46 Joules) for the neutron star. This is a difference of 2.814*10^46 Joules, is this the amount of kinetic energy generated? Also, when I compare this number to the 10^44 Joules released by a supernova explosion...
Homework Statement
I am given a model where for an accelerating universe the redshift changes according to the following equations (given in part b). For this model and assuming that H0=70km/s/Mpc, evaluate the change in redshift over 10 years, for a source at z=1 and the change in recession...
Homework Statement
For a κ=0 universe with no cosmological constant, show that H(z)=H0(1+z)3/2
Homework Equations
Friedmann equation: H2=\frac{8*\pi*g}{3c^2}-\frac{κc^2}{r^2}*\frac{1}{a(t)^2}
The Attempt at a Solution
I know that R(z)=R0/(1+z) but I do not know where this comes...
Homework Statement
Calculate the kinetic energy generated when a white dwarf in a binary system accretes enough material to increase its mass beyond the Chandrasekhar limit (1.4 solar masses) and collapse to the radius of a neutron star.
radius of white dwarf- 5520 km
radius of neutron...