| Issue |
A&A
Volume 549, January 2013
|
|
|---|---|---|
| Article Number | A34 | |
| Number of page(s) | 5 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361/201220274 | |
| Published online | 12 December 2012 | |
Research Note
SDSS photometry of asteroids in cometary orbits
1 ESO, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago 19, Chile
e-mail: aalvarez@eso.org
2 Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, 18008 Granada, Spain
Received: 22 August 2012
Accepted: 13 November 2012
Aims. Aiming at exploring the relationship between asteroids in cometary orbits and other minor body populations from the observational point of view, I explore the large photometric database of the Sloan Digital Sky Survey – Moving Objects Catalog.
Methods. The sample of interest was carefully selected by analyzing colors and orbital properties within the data in the catalog. I computed the spectral slope for each object and compared with published spectroscopic results of other asteroids in cometary orbits, as well as with other populations of asteroids in the outer region of the main belt and Trojans.
Results. Using this extended database I find that asteroids in cometary orbits with Tisserand parameter below 2.9, and especially below 2.8, are most likely of primitive origin. The population of objects with Tisserand parameter larger than 2.9 is a mixture of populations ranging from the inner to the outer main belt.
Key words: catalogs / minor planets, asteroids: general
© ESO, 2012
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.