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Planetary impact probabilities for long-period comets
Icarus, 1984Abstract Planetary impact probabilities for long-period (near-parabolic) comets are determined by averaging Opik's equations over inclination and perihelion distance for each planet. These averaged values compare well with the results of more elaborate Monte Carlo calculations. The impact probabilities are proportional to the square of the normalized
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The activity pattern of distant long period comets
Modern sky surveys now regularly discover comets at distances between 5 and 10 au, or even further, from the Sun. This is expected to become more common when the Vera C Rubin observatory’s Legacy Survey of Space and Time (LSST) begins in around a year. Yet the distant activity of comets is still poorly understood – at such distancesColin Snodgrass, Carrie Holt
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Heliocentric Light Curves of Long-Period Comets
We investigate the heliocentric brightening behavior of long-period comets as a function of their dynamical age, parameterized by the original reciprocal semimajor axis, 1/a0. The analysis is designed to test longstanding assertions regarding cometary photometric evolution using a substantial dataset of magnitude measurements reported to the Minor ...Pedro Lacerda +6 more
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Where do long-period comets come from? 26 comets from the non-gravitational Oort spike
Monthly Notices of the Royal Astronomical Society, 2010Małgorzata Królikowska +1 more
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Discovery statistics and 1/a distribution of long-period comets detected during 1801–2017
Monthly Notices of the Royal Astronomical Society, 2019Małgorzata Królikowska +1 more
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The Kozai resonance in the outer solar system and the dynamics of long-period comets
Celestial Mechanics and Dynamical Astronomy, 1996Alessandro Morbidelli
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