Physical Characteristics of Jupiter's Trojan (1437) Diomedes from a Tri-chord Stellar Occultation in 2020 and Dimensionless 3D Model
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866912140714049536 |
|---|---|
| author | Dutra, H. Assafin, M. Sicardy, B. Ortiz, J. L. Gomes-Júnior, A. R. Morgado, B. E. Benedetti-Rossi, G. Braga-Ribas, F. Margoti, G. Gradovski, E. Camargo, J. I. B. Boufleur, R. Vieira-Martins, R. Desmars, J. Oesper, D. Bender, K. Kitting, C. Nolthenius, R. |
| author_facet | Dutra, H. Assafin, M. Sicardy, B. Ortiz, J. L. Gomes-Júnior, A. R. Morgado, B. E. Benedetti-Rossi, G. Braga-Ribas, F. Margoti, G. Gradovski, E. Camargo, J. I. B. Boufleur, R. Vieira-Martins, R. Desmars, J. Oesper, D. Bender, K. Kitting, C. Nolthenius, R. |
| contents | Jupiter Trojans preserve primitive formation characteristics due to their collisionless stable orbits. Determination of their shapes and size-frequency distribution constrains the collisional evolution of their parent population which also originated the Kuiper Belt. We started a program to find precise sizes/shapes for Trojans, combining stellar occultations and DAMIT 3D shape models. We report results for Diomedes, by fitting its dimensionless 3D model to 3 chords of a stellar occultation observed in 2020, using iterative $χ^{2}$ procedures. The pole coordinates, rotation period, volume-equivalent radius and geometric albedo were: $λ$ = 153.73$^{o}$ $\pm$ 2.5$^{o}$, $β$ = 12.69$^{o}$ $\pm$ 2.6$^{o}$, $P$ = 24.4984 $\pm$ 0.0002 h, $R_{eq}$ = 59.4 $\pm$ 0.3 km and $p_{V}$ = 0.030 $\pm$ 0.004. A precise position was obtained too. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01568 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Physical Characteristics of Jupiter's Trojan (1437) Diomedes from a Tri-chord Stellar Occultation in 2020 and Dimensionless 3D Model Dutra, H. Assafin, M. Sicardy, B. Ortiz, J. L. Gomes-Júnior, A. R. Morgado, B. E. Benedetti-Rossi, G. Braga-Ribas, F. Margoti, G. Gradovski, E. Camargo, J. I. B. Boufleur, R. Vieira-Martins, R. Desmars, J. Oesper, D. Bender, K. Kitting, C. Nolthenius, R. Earth and Planetary Astrophysics Jupiter Trojans preserve primitive formation characteristics due to their collisionless stable orbits. Determination of their shapes and size-frequency distribution constrains the collisional evolution of their parent population which also originated the Kuiper Belt. We started a program to find precise sizes/shapes for Trojans, combining stellar occultations and DAMIT 3D shape models. We report results for Diomedes, by fitting its dimensionless 3D model to 3 chords of a stellar occultation observed in 2020, using iterative $χ^{2}$ procedures. The pole coordinates, rotation period, volume-equivalent radius and geometric albedo were: $λ$ = 153.73$^{o}$ $\pm$ 2.5$^{o}$, $β$ = 12.69$^{o}$ $\pm$ 2.6$^{o}$, $P$ = 24.4984 $\pm$ 0.0002 h, $R_{eq}$ = 59.4 $\pm$ 0.3 km and $p_{V}$ = 0.030 $\pm$ 0.004. A precise position was obtained too. |
| title | Physical Characteristics of Jupiter's Trojan (1437) Diomedes from a Tri-chord Stellar Occultation in 2020 and Dimensionless 3D Model |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2412.01568 |