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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2016 ; 113 (42): 11662-6 Nephropedia Template TP
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Simplified derivation of the gravitational wave stress tensor from the linearized Einstein field equations #MMPMID27698143
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Proc Natl Acad Sci U S A 2016[Oct]; 113 (42): 11662-6 PMID27698143show ga
Gravitational radiation provides a probe of unprecedented power with which to elucidate important astrophysical processes that are otherwise completely dark (e.g., black hole mergers) or impenetrable (e.g., supernova and early universe dynamics). Historically, the gap between propagating fluctuations in the spacetime metric and classical dynamical concepts such as energy and angular momentum conservation has bedeviled this subject. By now, there is a vast literature on this topic, and there are many powerful methods available. Because of their mathematical sophistication, however, they are not used in introductory texts, which are forced instead to a follow a much more cumbersome path. We present here a derivation of the most widely used form of the stress energy tensor of gravitational radiation, using elementary methods only.