Davide Gerosa


Frequency-domain waveform approximants capturing Doppler shifts

Katie Chamberlain, Christopher J. Moore, Davide Gerosa, Nicolas Yunes.
arXiv:1809.04799 [gr-qc].

We all know Doppler shifts, right? That’s like the biibouuubiiiiboouuuuuu of an ambulance. That happens to gravitational waves as well. Suppose you have a merging binary which is emitting gravitational waves (bibooou). If that binary is going somewhere (say it’s falling into the gravitational potential of a third body), much like the ambulance, the emitted signal will be Doppler shifted. This paper shows a very nice calculation to incorporate Doppler shifts into gravitational waves.

ps. This started out as Katie’s undergraduate summer project at Caltech. Congrats Katie!

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