A Tighter Constraint on post-Newtonian Gravity using Millisecond Pulsars

Details A Tighter Constraint on post-Newtonian Gravity using Millisecond Pulsars A Tighter Constraint on post-Newtonian Gravity using Millisecond Pulsars

1995-07-24

arxiv.org/abs/astro-ph/9507086v2

Astrophys.J. 462 (1996) 287

Astronomy and Astrophysics

Astrophysics

3 pages, uuencoded, gz -9 compressed postscript, accepted by ApJL

Scientific paper

10.1086/177149

Some theories of gravity predict the existence of preferred-frame effects and violations of conservation of energy and momentum. General relativity predicts no such effects. In the parameterised post-Newtonian (PPN) formalism, the parameter, \al3 $\equiv 0$ if these effects do not exist. The period derivatives ($\dot{P}$) of millisecond pulsars (MSPs) are used to more tightly constrain these effects by showing that $|$\al3$|$ $< 5 \times 10^{-16}$.

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