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Author Sivaram, C.
Source Indian Institute of Astrophysics
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Description Awarded Honorable Mention at the 2015 Competition of Gravity Research Foundation, Massachusetts, USA
Attempts to detect gravitational waves is actively in progress with sophisticated devices like LIGO set up across continents. Despite being predicted almost hundred years ago there has so far been no direct detection of these waves. In this work we draw attention to some of the less discussed but subtle aspects arising, for example, from high orbital eccentricities, where emission near periastron could be millions of times more than that in the distant parts of the orbit. The strong field non-linear effects close to the compact objects can substantially slow down and detect the waves in the last (few) orbit(s) where much of the intensity is expected. Spin-orbit and other forces could be significant. There would also be plasma like resonant absorption (of kilohertz radiation) during the collapse. Recent observation of supermassive black holes at high red shift implies cluster collapse where the gravitational wave intensity depends on very high powers of the mass. Any unambiguous claim of detection should perhaps consider several of these effects.
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Institution Gravity Research Foundation
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