Optical spectroscopy and near-infrared observations of Comet C /2000 WM1 (LINEAR) in December 2001 from Chile and Brazil

We report on a preliminary analysis of the high-resolution spectrum of Comet C/2000 WM1 (LINEAR), obtained on December 1, 2001, with the Fiber fed Extended Range Optical Spectrograph (FEROS) installed on the 1.52-m telescope of ESO (Chile). Many emission lines of the molecules C2, C3, CN, CH, CH(+),...

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Bibliographic Details
Published in:Earth, moon, and planets moon, and planets, 2002-03, Vol.2 (1-4), p.391-400
Main Authors: Picazzio, E, De Almeida, A A, Churyumov, K I, Andrievski, S M, Luk'yanyk, I V
Format: Article
Language:English
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Summary:We report on a preliminary analysis of the high-resolution spectrum of Comet C/2000 WM1 (LINEAR), obtained on December 1, 2001, with the Fiber fed Extended Range Optical Spectrograph (FEROS) installed on the 1.52-m telescope of ESO (Chile). Many emission lines of the molecules C2, C3, CN, CH, CH(+), NH2, CO, CO(+), H2O(+) and, presumably, C2 were identified in the spectral range 400-900 nm. Also, near-infrared photometry was performed on December 2 and 3, with the infrared camera (CamIV) attached to the 0.60-m Boiler and Chivens telescope of the Pico dos Dias Observatory (LNA/MCT), Brazil. We report a preliminary and comparative analysis of the I-J and J-H color indices. (Author)
ISSN:0167-9295