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Optical Spectroscopy and Near-Infrared Observations of Comet C/2000 Wm1 (Linear) in December 2001 from Chile and Brazil |
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| Authors: | Picazzio Enos De Almeida Amaury A Churyumov Klim I Andrievski Sergei M Luk'yanyk Igor V |
| Institution: | 1.Department of Astronomy, Institute of Astronomy, Geophysics and Atmospheric Sciences, University of S?o Paulo, Main Campus, Rua do Mat?o 1226, CEP 05508-900, S?o Paulo, SP, Brazil ;2.Astronomical Observatory, Kyiv National Shevchenko University, Kyiv, Ukraine ;3.Department of Astronomy, Odessa Mechnikov National University, Odessa Shevchenko Park, 65014, Ukraine ; |
| Abstract: | We report on the preliminary analysis of the high-resolution spectrum of CometC/2000 WM1 (LINEAR), obtained on Dec. 1, 2001 with the Fiber fed ExtendedRange 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 identifiedin the spectral range 400–900 nm. Also, near-infrared photometry was performed on Dec. 2 and 3, with the infraredcamera (CamIV) attached to the 0.60-m Boller and Chivens telescope of the Picodos Dias Observatory (LNA/MCT), Brazil. We report the preliminary and comparativeanalysis of the I-J and J-H color indices. |
| Keywords: | Comet C/2000 WM1 (LINEAR) comets infrared photometry spectroscopy |
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