Ejection velocities, age, and formation process of SPE meteoroid cluster

0563699 - ASÚ 2023 RIV FR eng J - Journal Article
Čapek, David - Koten, Pavel - Spurný, Pavel - Shrbený, Lukáš
Ejection velocities, age, and formation process of SPE meteoroid cluster.
Astronomy & Astrophysics. Roč. 666, October (2022), č. článku A144. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR(CZ) GA20-10907S
Institutional support: RVO:67985815
Keywords : meteorites * meteors * meteoroids
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 6.5, year: 2022
Method of publishing: Open access

The goal is to determine ejection velocities of the cluster members and SPE's age, as well as to estimate the most probable formation process. Authors determined mutual positions and masses of all meteoroids including the errors. They assumed that the massdominated meteoroid is the parent body of the cluster and that the observed positions of meteoroids are controlled by the ejection velocities and the action of solar radiation pressure. A formula for the dependence of meteoroid ejection velocities on the mutual positions, masses, and cluster age was derived. It was assumed that the time at which the initial kinetic energy of all meteoroids reached a minimum value corresponds to the age of the cluster. Knowing values and directions of ejection velocities together with meteoroid masses then allowed us to determine the most likely process of cluster formation.
Permanent Link: https://hdl.handle.net/11104/0337521