Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.352..783p&link_type=abstract
Nature (ISSN 0028-0836), vol. 352, Aug. 29, 1991, p. 783, 784.
Astronomy and Astrophysics
Astronomy
37
Neutron Stars, Orbital Elements, Planetary Evolution, Planetary Systems, Pulsars, Radio Sources (Astronomy), Stellar Envelopes, White Dwarf Stars
Scientific paper
Two explanations for the existence and orbital parameters of the claimed planet-mass object in a cicular six-month orbit around the radio pulsar PSR1829 - 10 are presented. In the first, the pulsar forms from the coalescence of two white dwarfs and the planet condenses from a massive disk of material left behind. In the second, a neutron star collides with and cannibalizes the central star of a solar-type planetary system. The orbits of the inner planets are made elliptical by this collision, but then are recircularized by drag forces due to the extended but short-lived envelope of the disrupted central star.
Podsiadlowski Ph
Pringle James E.
Rees Martin J.
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