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Hi everyone
Im trying to understand a paper(title of the thread)
arxiv.org/abs/astro-ph/0404482
Just woundering what an acoustic black hole and acoustic event horizon would actually be?
Is the Analogous Hawking Radiation just ascoustic osccilations in the Accretion matter? like the acoustic ossilation that are present in the CMB?
Or is it something more complicated like black hole ringing, in which case do gravity waves come into play? they(the paper) never mention gravity waves so is it just ascoustic vibrations?
If so how is this analogous Hawking Radiation?
Interesting paper though ( i think)
Im trying to understand a paper(title of the thread)
arxiv.org/abs/astro-ph/0404482
Just woundering what an acoustic black hole and acoustic event horizon would actually be?
Is the Analogous Hawking Radiation just ascoustic osccilations in the Accretion matter? like the acoustic ossilation that are present in the CMB?
Or is it something more complicated like black hole ringing, in which case do gravity waves come into play? they(the paper) never mention gravity waves so is it just ascoustic vibrations?
If so how is this analogous Hawking Radiation?
Interesting paper though ( i think)