Comparison of the physical properties of the L4 and L5 Trojan asteroids from ATLAS data
| Autor: | John L. Tonry, A. Heinze, H. Flewelling, David Trilling, B. Stalder, H. J. Weiland, N. Erasmus, Andrew McNeill, J. P. Emery, L. Denneau |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Earth and Planetary Astrophysics (astro-ph.EP)
education.field_of_study Population FOS: Physical sciences Lagrangian point Astronomy Astronomy and Astrophysics Jupiter Geophysics medicine.anatomical_structure Space and Planetary Science Asteroid Trojan Atlas (anatomy) Atlas data Earth and Planetary Sciences (miscellaneous) medicine education Alert system Geology Astrophysics - Earth and Planetary Astrophysics |
| Popis: | Jupiter has nearly 8000~known co-orbital asteroids orbiting in the L4 and L5 Lagrange points called Jupiter Trojan asteroids. Aside from the greater number density of the L4 cloud the two clouds are in many ways considered to be identical. Using sparse photometric data taken by the Asteroid Terrestrial-impact Last Alert System (ATLAS) for 863 L4 Trojans and 380 L5 Trojans we derive the shape distribution for each of the clouds and find that, on average, the L4 asteroids are more elongated than the L5 asteroids. This shape difference is most likely due to the greater collision rate in the L4 cloud that results from its larger population. We additionally present the phase functions and $c-o$ colours of 266~objects. 22 pages, 9 figures, 2 tables. Accepted by PSJ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|