Volume 413, Number 3, January III 2004
|Page(s)||1153 - 1161|
|Section||Planets and planetary systems|
|Published online||07 January 2004|
Transitional and temporary objects in the Jupiter Trojan area
Astronomiska Observatoriet, Uppsala Universitet, Box 515, 751 20 Uppsala, Sweden
Corresponding author: Ola.Karlsson@astro.uu.se
Accepted: 4 September 2003
I have integrated 1233 objects with semimajor axes between 4.6 and 5.8 AU 1000 years back and forward in time. A search for Jupiter horseshoe Trojans in transition from tadpole orbits to non-Trojan orbits and objects in temporary horseshoe orbits was made. A total of 13 objects (5 comets, 3 asteroids and 5 Trojans) were found. In a second group, among 337 new Trojans discovered after the primary investigation, 7 transitional candidates were found. Two objects, 2000 HR24 and 2002 GP31, are falsely identified as Trojans. No likely transitional objects were found in the first object set, but all of them have at least temporary captures in orbit types associated with Jupiter's 1:1 mean motion resonance. Trojans in the first set have short observational arcs which can explain the low probability for a Trojan past. Trojans in the second set have longer arcs and 5 of them are good candidates for being in transition from the Trojan area.
Key words: comets: general / minor planets, asteroids
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.