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arXiv · 1508.04926

Polarimetric and Spectroscopic Observations of a Dynamically New Comet C/2012 J1 (Catalina)

O. Ivanova·O. Shubina·A. Moiseev·V. Afanasiev
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Abstract

We present the analysis of the polarimetric and spectral data obtained for the dynamically new comet C/2012\,J1 (Catalina) when it was at a distance of 3.17~AU from the Sun. The observations were made at the prime focus of the 6-m BTA telescope using the SCORPIO-2 focal reducer. The map of the distribution of linear polarization in the cometary coma was constructed. The calculated value of linear polarization was on average about $-2\%$. Spectral analysis of the cometary coma allowed us to detect the emission of the CN molecule in the (0--0) band. The gas production rate was derived using the Haser model and amounted to $3.7\times10^{23}$~molecules per second.

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O. Ivanova, O. Shubina, A. Moiseev, V. Afanasiev. 2015-08-20. Polarimetric and Spectroscopic Observations of a Dynamically New Comet C/2012 J1 (Catalina). https://doi.org/10.1134/s1990341315030141

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