Consider a neutron star of radius of 10 km and a mass of 1.4 M⊙ that has a surface layer of pure 1H. (a) For the given parameters, compute the luminosity and wavelength of peak emission of a neutron star shining at Eddington Luminosity in the rest frame of the neutron star. Assume black body emission. (b) What is the impact of a) the gravitational redshift and b) the time delay, both caused by general relativity, on the observed wavelength? (c) What is the wavelength and luminosity seen by an observer at large distance (much larger than neutron star radius)?

Consider a neutron star of radius of 10 km and a mass of 1.4 M⊙ that has a surface layer of pure 1H. (a) For the given parameters, compute the luminosity and wavelength of peak emission of a neutron star shining at Eddington Luminosity in the rest frame of the neutron star. Assume black body emission. (b) What is the impact of a) the gravitational redshift and b) the time delay, both caused by general relativity, on the observed wavelength? (c) What is the wavelength and luminosity seen by an observer at large distance (much larger than neutron star radius)?