Frequency and intensity of comet showers from the Oort cloud
Journal Article
·
· Icarus; (United States)
The nature of new comets and the frequency and intensity of comet showers are presently studied by means of a simulation in which an ensemble of one million comets is perturbed at random times by the Bahcall-Soneira (1980) Galaxy model's population of main sequence stars and white dwarfs. The time-integrated flux is dominated by the showers for comets whose semimajor axes are less than about 30,000 AU. The inclusion of tidal effects increases the loss rate of comets with semimajor axes between 10,000 and 20,000 AU by a factor of about 4, so that the Galactic tide, rather than individual stellar perturbations, is the dominant Oort cloud evolution-driving mechanism. 44 references.
- Research Organization:
- MIT, Cambridge, MA; Toronto Univ., Canada
- OSTI ID:
- 6119455
- Journal Information:
- Icarus; (United States), Journal Name: Icarus; (United States) Vol. 70; ISSN ICRSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comet showers and the steady-state infall of comets from the Oort cloud
Effect of stellar encounters on comet cloud formation
A UNIFIED THEORY FOR THE EFFECTS OF STELLAR PERTURBATIONS AND GALACTIC TIDES ON OORT CLOUD COMETS
Journal Article
·
Sat Oct 31 23:00:00 EST 1981
· Astron. J.; (United States)
·
OSTI ID:5873135
Effect of stellar encounters on comet cloud formation
Journal Article
·
Wed Jul 01 00:00:00 EDT 2015
· The Astronomical Journal (Online)
·
OSTI ID:22879460
A UNIFIED THEORY FOR THE EFFECTS OF STELLAR PERTURBATIONS AND GALACTIC TIDES ON OORT CLOUD COMETS
Journal Article
·
Sun Nov 14 23:00:00 EST 2010
· Astronomical Journal (New York, N.Y. Online)
·
OSTI ID:21443200