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Дата изменения: Unknown Дата индексирования: Sun Apr 10 09:02:01 2016 Кодировка: Поисковые слова: m 63 |
3rd of January 2015 |
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2014 Science Highlights |
The kinematics and orbital dynamics of the PSR B1259-63 / LS 2883 system from 23 yr of pulsar timing |
Shannon, Johnston & Manchester (2014) present an analysis of 23 yr of pulse
arrival times for PSR B1259-63 with the 64-m Parkes Telescope. The pulsar is
in a binary orbit about its
approximately 20 Msun companion LS 2883. Their best-fitting timing solution
has none of the pulse-number ambiguities that have plagued previous attempts
to model the binary orbit. By combining proper motion of the pulsar with
radial velocity measurements of the companion, they measure the 3D velocity
of the system, which is then used to constrain the masses of the stars prior
to the supernova explosion and the kick the pulsar received at or immediately
after the explosion. |