Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH

Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH

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20.07.2013 Views

¯cl and ˜cl ¯cλ and ˜cλ versus l/(2π) The plots ¯cl, ˜cl, ¯cλ and ˜cλ against orbital cycles, given by l 2 π . These variations are governed by the reactive 2.5PN equations of motion. Periodic nature of the variations in ˜cl and ˜cλ as well as the constancy of ¯cl and ¯cλ are clearly visible. BRI-IHP06-I – p.154/??

Validity of Results Circular orbits above the LSO, in the presence of GRR, can be described as an adiabatic sequence of circular orbits. Approximation breaks down when the binary reaches the LSO, at which point the orbital motion changes into a kind of plunge. For inspiralling eccentric orbits, evolving under GRR, our treatment can only be valid above an eccentric analog of the LSO, i.e. stable eccentric orbits (separated by a potential barrier from any plunge motion) To delineate them one can use the non-perturbative effective one body (EOB) formalism, because the transition between bound and plunge orbits has a non-perturbative, strong-field origin. BRI-IHP06-I – p.155/??

¯cl and ˜cl ¯cλ and ˜cλ versus l/(2π)<br />

The plots ¯cl, ˜cl, ¯cλ and ˜cλ aga<strong>in</strong>st orbital cycles, given by l<br />

2 π .<br />

These variations are governed by the reactive 2.5PN<br />

equations of motion. Periodic nature of the variations <strong>in</strong> ˜cl<br />

and ˜cλ as well as the constancy of ¯cl and ¯cλ are clearly<br />

visible.<br />

BRI-IHP06-I – p.154/??

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