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

Yu. Bondarenko, Yu. Chernetenko, Yu. Medvedev

Transactions of IAA RAS, issue 26, 133 (2012)

Keywords: comet, dynamical model, outburst, brightness

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.

Citation

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Yu. Bondarenko, Yu. Chernetenko, Yu. Medvedev. Physical and dynamical parameters of particles in outbursting Comet 17 P/Holmes // Transactions of IAA RAS. — 2012. — Issue 26. — P. 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 = {Transactions of IAA RAS},
  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/en/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  - Transactions of IAA RAS
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/en/library/paper/907/
ER  -