Table · dataset · 2024
Recovering the orbits of known PHAs
Listed in IVOA Registry (Virtual Observatory)
Resonances in the main asteroid belt play a significant role in the dynamical evolution of small bodies.
Description
They are capable of driving objects into the near-Earth object (NEO) region as well. This work re-examines the transportation abilities of the 5:2 mean motion resonance (MMR) with Jupiter.
We focus on a greater portion of the resonance than the previous study that used a similar method. We are also interested in an elimination course along q~0.26au that was discovered previously. Moreover, we search for the orbits of potentially hazardous asteroids (PHAs) have and for orbits that correspond to recent L chondrite meteorites.
Read the rest (3 more)
Firstly, short-term fast Lyapunov indicator maps of the 5:2 MMR were computed in order to distinguish between stable and unstable orbits. Then over 10000 unstable particles were selected and integrated for a longer period of time, up to 10Myr, to reveal the transportation abilities of the resonance. During our simulation, 99.45% of test particles became NEOs, 9.43% reached the orbit with a semi-major axis, a<1au, and over 27% of particles migrated to low perihelion distances q<0.005au.
In addition, 92.8% of the particles entered the Hill sphere of the Earth and over 97% reached an orbit at which we would classify them as potentially hazardous if they were sufficiently large. However, our simulation did not confirm ejections along q~0.26au. Our results suggest that there is some kind of discrepancy between using the MERCURIUS integrator (REBOUND package) and the ORBIT9 integrator (OrbFit package).
This subject is worth additional examination.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/686/A107 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2024A&A...686A.107K ui.adsabs.harvard.edu/abs/2024A%26A...686A.107K ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/686/a107 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Simulation 75% · Space sciences 73%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/686/a107 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5109 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[method].local:method:simulation | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |