Twenty-One Millisecond Pulsars in Terzan 5 Using the Green Bank Telescope
- 11 February 2005
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 307 (5711), 892-896
- https://doi.org/10.1126/science.1108632
Abstract
We have identified 21 millisecond pulsars (MSPs) in globular cluster Terzan 5 by using the Green Bank Telescope, bringing the total of known MSPs in Terzan 5 to 24. These discoveries confirm fundamental predictions of globular cluster and binary system evolution. Thirteen of the new MSPs are in binaries, of which two show eclipses and two have highly eccentric orbits. The relativistic periastron advance for the two eccentric systems indicates that at least one of these pulsars has a mass 1.68 times greater than the mass of the Sun at 95% confidence. Such large neutron star masses constrain the equation of state of matter at or beyond the nuclear equilibrium density.Keywords
This publication has 30 references indexed in Scilit:
- Giant Metrewave Radio Telescope Discovery of a Millisecond Pulsar in a Very Eccentric Binary SystemThe Astrophysical Journal, 2004
- Probing the Masses of the PSR J0621+1002 Binary System through Relativistic Apsidal MotionThe Astrophysical Journal, 2002
- An Eclipsing Millisecond Pulsar with a Possible Main-Sequence Companion in NGC 6397The Astrophysical Journal, 2001
- Deep Radio Imaging of Globular Clusters and the Cluster Pulsar PopulationThe Astrophysical Journal, 2000
- Observations of 20 Millisecond Pulsars in 47 Tucanae at 20 CentimetersThe Astrophysical Journal, 2000
- The Parkes Southern Pulsar Survey -- II. Final results and population analysisMonthly Notices of the Royal Astronomical Society, 1998
- On orbital circulation in late-type close binariesThe Astrophysical Journal, 1995
- Pulsar PSR 1744-24A - Timing, eclipses, and the evolution of neutron star binariesThe Astrophysical Journal, 1992
- Collisions of giant stars with compact objects - Hydrodynamical calculationsThe Astrophysical Journal, 1991
- An eclipsing millisecond pulsar in the globular cluster Terzan 5Nature, 1990