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## Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes

Труды ИПА РАН, вып. 26, 133 (2012)

Ключевые слова: comet, dynamical model, outburst, brightness

### Аннотация

The time depending offset between the center of brightness and center of mass of the comet nucleus has been determined on the ground of positional observations of the comet. It is assumed that the offset is caused by the motion of particles ejected from the nucleus. The dynamic model of particles motion in the vicinity of the comet nucleus was developed. Calculations showed that the size of the particles should be about 53 m in diameter and had the initial velocity of 1.2 m/s at the moment of outburst. Within 20 days after the explosion the size of particles decreased to about 5 mm. The motion of these particles allowed subsequent offset between the center of brightness and center of mass of the comet nucleus to be obtained from positional observations

### Цитирование

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RIS
Yu. Bondarenko, Yu. Chernetenko, Yu. Medvedev. Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes // Труды ИПА РАН. — 2012. — Вып. 26. — С. 133. @article{bondarenko2012, abstract = {The time depending offset between the center of brightness and center of mass of the comet nucleus has been determined on the ground of positional observations of the comet. It is assumed that the offset is caused by the motion of particles ejected from the nucleus. The dynamic model of particles motion in the vicinity of the comet nucleus was developed. Calculations showed that the size of the particles should be about 53 m in diameter and had the initial velocity of 1.2 m/s at the moment of outburst. Within 20 days after the explosion the size of particles decreased to about 5 mm. The motion of these particles allowed subsequent offset between the center of brightness and center of mass of the comet nucleus to be obtained from positional observations}, author = {Yu. Bondarenko and Yu. Chernetenko and Yu. Medvedev}, issue = {26}, journal = {Труды ИПА РАН}, keyword = {comet, dynamical model, outburst, brightness}, pages = {133}, title = {Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes}, url = {http://iaaras.ru/library/paper/907/}, year = {2012} } TY - JOUR TI - Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes AU - Bondarenko, Yu. AU - Chernetenko, Yu. AU - Medvedev, Yu. PY - 2012 T2 - Труды ИПА РАН IS - 26 SP - 133 AB - The time depending offset between the center of brightness and center of mass of the comet nucleus has been determined on the ground of positional observations of the comet. It is assumed that the offset is caused by the motion of particles ejected from the nucleus. The dynamic model of particles motion in the vicinity of the comet nucleus was developed. Calculations showed that the size of the particles should be about 53 m in diameter and had the initial velocity of 1.2 m/s at the moment of outburst. Within 20 days after the explosion the size of particles decreased to about 5 mm. The motion of these particles allowed subsequent offset between the center of brightness and center of mass of the comet nucleus to be obtained from positional observations UR - http://iaaras.ru/library/paper/907/ ER -