Recent content by asras

Ah, I see. If we imagine two emission events (lets just say that one photon is emitted at each event) separated in the rest frame of the star by \Delta \tau the rate of emission is L = 1/\Delta \tau . In the frame of the observer the events are separated in time by \Delta t = \Delta \tau...

Bill, wouldn't that just be equivalent to N \rightarrow N/\gamma, due to time dilation? (If it were N \rightarrow N/((1+v)\gamma) I would be happy!)

My problem is how to calculate the radiation measured from a moving star. I figure there's two ways to do it, both of which I go through below, but they do not produce the same answer! For the first part everything is in the rest frame, \mathcal{O} , of the star. The star emits N...

I'm reading up on some methods to solve differential equations. My textbook states the following: "y_{1} and y_{2} are linearly independent ... since \sigma_{1}-\sigma_2 is not an integer." Where y_{1} and y_{2} are the standard Frobenius series and \sigma_1 and \sigma_2 are the roots of...