Science (American Association for the Advancement of Science), 2007-04, Vol.316 (5822), p.274-277
2007
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Details
- Autor(en) / Beteiligte
- Titel
- Spin Rate of Asteroid (54509) 2000 PH5 Increasing Due to the YORP Effect
- Ist Teil von
- Science (American Association for the Advancement of Science), 2007-04, Vol.316 (5822), p.274-277
- Ort / Verlag
- Washington, DC: American Association for the Advancement of Science
- Erscheinungsjahr
- 2007
- Quelle
- American Association for the Advancement of Science
- Beschreibungen/Notizen
- Radar and optical observations reveal that the continuous increase in the spin rate of near-Earth asteroid (54509) 2000 PH5 can be attributed to the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect, a torque due to sunlight. The change in spin rate is in reasonable agreement with theoretical predictions for the YORP acceleration of a body with the radar-determined size, shape, and spin state of 2000 PH5. The detection of asteroid spin-up supports the YORP effect as an explanation for the anomalous distribution of spin rates for asteroids under 10 kilometers in diameter and as a binary formation mechanism.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0036-8075eISSN: 1095-9203DOI: 10.1126/science.1139038Titel-ID: cdi_proquest_miscellaneous_70382791
- Format
- –
- Schlagworte
- Acceleration, Asteroids, Asteroids (minor planets), Astronomy, Cosmology, Double stars, Earth, ocean, space, Exact sciences and technology, Light curves, Mass, size, gravitational fields, rotation, orbits, Modeling, Near Earth objects, Observational astronomy, Planetary, asteroid, and satellite characteristics and properties, Planets, their satellites and rings. Asteroids, Radar, Radar echoes, Radar tracking, Rotation, Signal bandwidth, Solar system, Theory