3,600 research outputs found
Timing Measurements of the Relativistic Binary Pulsar PSR B1913+16
We present results of more than three decades of timing measurements of the
first known binary pulsar, PSR B1913+16. Like most other pulsars, its
rotational behavior over such long time scales is significantly affected by
small-scale irregularities not explicitly accounted for in a deterministic
model. Nevertheless, the physically important astrometric, spin, and orbital
parameters are well determined and well decoupled from the timing noise. We
have determined a significant result for proper motion, , mas yr. The pulsar exhibited
a small timing glitch in May 2003, with , and a
smaller timing peculiarity in mid-1992. A relativistic solution for orbital
parameters yields improved mass estimates for the pulsar and its companion,
m_1=1.4398\pm0.0002 \ M_{\sun} and m_2=1.3886\pm0.0002 \ M_{\sun}. The
system's orbital period has been decreasing at a rate times
that predicted as a result of gravitational radiation damping in general
relativity. As we have shown before, this result provides conclusive evidence
for the existence of gravitational radiation as predicted by Einstein's theory.Comment: Published in APJ, 722, 1030 (2010
Cardozo\u27s Law and Literature : A Guide to His Judicial Writing Style
Weisberg traces Judge Cardozo\u27s advice about legal writing to the famous 1925 essay LAW AND LITERATURE and applies it to the judicial opinions and other published works of Cardozo and various other judges
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