GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System

Details GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System

2004-03-18

arxiv.org/abs/astro-ph/0403453v1

Astrophys.J.606:L53-L56,2004

Astronomy and Astrophysics

Astrophysics

12 pages (referee format), 3 figures, accepted for publication in Astrophysical Journal Letters

Scientific paper

10.1086/421085

We report the discovery of the binary millisecond pulsar J0514-4002A, which is the first known pulsar in the globular cluster NGC 1851 and the first pulsar discovered using the Giant Metrewave Radio Telescope (GMRT). The pulsar has a rotational period of 4.99 ms, an orbital period of 18.8 days, and the most eccentric pulsar orbit yet measured (e = 0.89). The companion has a minimum mass of 0.9 M_sun and its nature is presently unclear. After accreting matter from a low-mass companion star which spun it up to a (few) millisecond spin period, the pulsar eventually exchanged the low-mass star for its more massive present companion. This is exactly the same process that could form a system containing a millisecond pulsar and a black hole; the discovery of NGC 1851A demonstrates that such systems might exist in the Universe, provided that stellar mass black holes exist in globular clusters.

Affiliated with

Also associated with

No associations

Rating

GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-524765