The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 38 Issue 1
- /
- Pages.62.2-62.2
- /
- 2013
- /
- 1226-2692(pISSN)
Search for dormant comets in AcuA
- Kim, Yoonyoung (Seoul National University) ;
- Ishiguro, Masateru (Seoul National University) ;
- Usui, Fumihiko (ISAS/JAXA)
- 김윤영 (서울대) ;
- ;
- Published : 2013.04.11
Abstract
It is considered that comets near the ecliptic plane have been injected into inner solar system from Kuiper-belt. Some of them are still active while others are dormant with no detectable tails and comae. These dormant comets have eccentric and/or inclined orbits, which are parameterized by Tisserand parameter TJ<3. In addition, dormant comets can be differentiated from asteroids based on the albedo, because they have low albedo (the geometrical albedos pv<0.1). The conditions of TJ<3 and pv<0.1 have been used as a criteria to discriminate dormant comets from asteroids. However, we must be more careful because there are 'contaminations' from the outer region, i.e. Jovian Trojans (5.05
Keywords