Optical Spectroscopy of Comet C/2000 WM1 (LINEAR) at the Guillermo Harro Astrophysical Observatory in Mexico |
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| Authors: | Churyumov Klim I. Luk'yanyk Igor V. Berezhnoi Alexei A. Chavushyan Vahram H. Sandoval Lourdes S. Palma Alejandro A. |
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| Affiliation: | (1) Astronomical Observatory, Kyiv National Shevchenko University, Ukraine;(2) Instituto Nacional de Astrofisica, Optica y Electronica, Tonantzintla, Puebla, Mexico;(3) Sternberg Astronomical Institute, Moscow, Russia;(4) Benemerita Universidad Autonoma de Puebla, Puebla, Mexico |
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| Abstract: | We present a preliminary analysis of medium resolution optical spectra of comet C/2000 WM1 (LINEAR) obtained on 22 November 2001. Theemission lines of the molecules C2, C3, CN, NH2,H2O+ and presumably CO (Asundi and triplet bands) and C2 -were identified in these spectra. By analysing the brightnessdistributions of the C2, C3, CN emission lines along theslit of the spectrograph we determined some physical parameters of theseneutrals, such as their lifetimes and expansion velocities inthe coma. The Franck–Condon factors for the CO Asundi bands and C2 - bands were calculated using a Morse potential model. |
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| Keywords: | C2, C3 CN comet C/2000 WM1 (LINEAR) expansion velocity Franck– Condon factors negative ions optical spectroscopy |
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