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Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons40533

Pletsch,  H. J.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons40523

Fehrmann,  H.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons40518

Allen,  B.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons40519

Aulbert,  C.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

science.1229054.full.pdf
(beliebiger Volltext), 928KB

1314.full.pdf
(beliebiger Volltext), 485KB

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Zitation

Pletsch, H. J., Guillemot, L., Fehrmann, H., Allen, B., Kramer, M., Aulbert, C., et al. (2012). Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations. Science Magazine, 338 (6112): 1229054, pp. 1314-1317. doi:10.1126/science.1229054.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-1736-7
Zusammenfassung
Millisecond pulsars, old neutron stars spun-up by accreting matter from a companion star, can reach high rotation rates of hundreds of revolutions per second. Until now, all such "recycled" rotation-powered pulsars have been detected by their spin-modulated radio emission. In a computing-intensive blind search of gamma-ray data from the Fermi Large Area Telescope (with partial constraints from optical data), we detected a 2.5-millisecond pulsar, PSR J1311−3430. This unambiguously explains a formerly unidentified gamma-ray source that had been a decade-long enigma, confirming previous conjectures. The pulsar is in a circular orbit with an orbital period of only 93 minutes, the shortest of any spin-powered pulsar binary ever found.