Lately Exposed Amorphous Water Ice on Comet 49P/Arend-Rigaux

B. Sivaraman; V. Venkataraman; A. Kalyaan; S. Arora; S. Ganesh

doi:10.1016/j.asr.2015.10.003

Lately Exposed Amorphous Water Ice on Comet 49P/Arend-Rigaux

Earth and Planetary Astrophysics 2015-11-18 v3

Authors: B. Sivaraman , V. Venkataraman , A. Kalyaan , S. Arora , S. Ganesh

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Abstract

Comet 49P/ Arend-Rigaux, thought to be a low activity comet since the 1980's was found to be active in its recent apparitions. Recent analysis of the data obtained from Spitzer observation of the comet in 2006 compared with laboratory spectra has revealed amorphous water ice on the surface. In addition, in 2012 a jet was found to appear during its subsequent perihelion passage as witnessed during an observation carried out on 26th March 2012 using the PRL telescope at Mt. Abu. This confirms recent activity of Comet 49P/Arend-Rigaux due to the volatile subsurface materials exposed after several passages close to the Sun. Our result confirms the subsurface ices on cometary nuclei and insists for more observations for a better understanding.

Keywords

comet 49P/Arend-Rigaux amorphous water ice cometary activity Spitzer observation jet subsurface volatiles perihelion passage

Cite

@article{arxiv.1409.4957,
  title  = {Lately Exposed Amorphous Water Ice on Comet 49P/Arend-Rigaux},
  author = {B. Sivaraman and V. Venkataraman and A. Kalyaan and S. Arora and S. Ganesh},
  journal= {arXiv preprint arXiv:1409.4957},
  year   = {2015}
}

Lately Exposed Amorphous Water Ice on Comet 49P/Arend-Rigaux

Abstract

Keywords

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