A Radio Pulsar Spinning at 716 Hz

A Radio Pulsar Spinning at 716 Hz

We have discovered a 716-hertz eclipsing binary radio pulsar in the globular cluster Terzan 5 using the Green Bank Telescope. It is the fastest spinning neutron star found to date, breaking the 24-year record held by the 642-hertz pulsar B1937+21. The difficulty in detecting this pulsar, because of...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2006-03, Vol.311 (5769), p.1901-1904
Hauptverfasser: Jason W. T. Hessels, Ransom, Scott M., Stairs, Ingrid H., Paulo C. C. Freire, Kaspi, Victoria M., Camilo, Fernando
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Astrophysics
Average linear density
Datasets
Earth, ocean, space
Eclipses
Exact sciences and technology
Globular star clusters
Gravity
Late stages of stellar evolution (including black holes)
Mass
Millisecond pulsars
Neutron stars
Neutrons
Pulsars
Stars
Stellar rotation
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Zusammenfassung:We have discovered a 716-hertz eclipsing binary radio pulsar in the globular cluster Terzan 5 using the Green Bank Telescope. It is the fastest spinning neutron star found to date, breaking the 24-year record held by the 642-hertz pulsar B1937+21. The difficulty in detecting this pulsar, because of its very low flux density and high eclipse fraction (~40% of the orbit), suggests that even faster spinning neutron stars exist. If the pulsar has a mass less than twice the mass of the Sun, then its radius must be constrained by the spin rate to be
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1123430