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Planets orbiting Quark Nova compact remnants

By SpaceRef Editor
January 30, 2003
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Astrophysics, abstract

From: Petteri Keranen <>
Date: Wed, 29 Jan 2003 13:45:34 GMT (9kb)

Planets orbiting Quark Nova compact remnants

P. Keränen (1),
R. Ouyed (2) ((1) NORDITA, Copenhagen, Denmark, (2) Dept. of Physics and Astronomy, University of Calgary, Canada)

Report-no: NORDITA-2003-3AP

We explore planet formation in the Quark Nova scenario. If a millisecond
pulsar explodes as a Quark Nova, a protoplanetary disk can be formed out of the
metal rich fall-back material. The propeller mechanism transfers angular
momentum from the born quark star to the disk that will go through viscous
evolution with later plausible grain condensation and planet formation. As a
result, earth-size planets on circular orbits may form within short radii from
the central quark star. The planets in the PSR1257+12 system can be explained
by our model if the Quark Nova compact remnant is born with a period of $sim
0.5$ ms following the explosion. We suggest that a good portion of the Quark
Nova remnants may harbour planetary systems.

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