Other
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.346...42a&link_type=abstract
Nature (ISSN 0028-0836), vol. 346, July 5, 1990, p. 42-44. Research supported by NSF, DOE, and Alfred P. Sloan Foundation.
Other
106
Binary Stars, Galactic Evolution, Globular Clusters, Pulsars, Stellar Structure, Concurrent Processing, Hypercube Multiprocessors, Neutron Stars, Power Spectra, White Dwarf Stars
Scientific paper
The discovery of two radio pulsars, 2127 + 11B and 2127 + 11C, in the globular cluster M15, which also contains the 110-ms pulsar 2127 + 11A, is reported. The detection of three pulsars in a single cluster suggests that there might be a large total population of these objects, which would make them powerful probes of the dynamics and evolution of globular clusters. One of the new pulsars, 2127 + 11C, is in a highly eccentric binary system with an eight-hour period, and is thus similar to the famous PSR1913 + 16 system. Study of the pulse arrival times can be expected to provide tests of general relativity, including gravitational wave emission. The companion of PSR2127 + 11C is probably either another neutron star or a massive white dwarf, suggesting that the core of M15 contains a high density of massive stellar remnants.
Anderson Seth B.
Gorham Peter. W.
Kulkarni Sanjeev R.
Prince Thomas A.
Wolszczan Alex
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