Spectroscopic Observations of the Comet 29P/Schwassmann-Wachmann 1 at the SOAR Telescope
Oleksandra V. Ivanova (1,2), Enos Picazzio (3), Igor V. Luk'yanyk (4),, Oscar Cavichia (5), Sergei M. Andrievsky (6,7) ((1) Astronomical Institute of, the Slovak Academy of Sciences, Tatranska Lomnica, Slovak Republic (2) Main, Astronomical Observatory
TL;DR
This study presents spectroscopic observations of comet 29P/Schwassmann-Wachmann 1 using the SOAR telescope, revealing specific ion emissions and estimating spectral properties at 5.9 AU from the Sun.
Contribution
First spectroscopic analysis of comet 29P/Schwassmann-Wachmann 1 at SOAR, identifying ion emissions and measuring spectral gradient.
Findings
Detection of CO$^+$ and N$_2^+$ emissions in the coma.
Estimated [N$_2^+$]/[CO$^+$] ratio as 0.01.
Spectral gradient value calculated for the comet.
Abstract
We carried out photometric and spectroscopic observations of comet 29P/ Schwassmann-Wachmann 1 at the SOAR 4.1-meter telescope (Chile) on August 12, 2016. This paper presents the results of only spectroscopic analysis. The spectra revealed presence of CO and N emissions in the cometary coma at a distance of 5.9 AU from the Sun. The ratio [N]/[CO] within the projected slit seems to be 0.01. We have also estimated spectral gradient value for the comet.
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