A high spectral resolution atlas and catalogue of emission lines of the comet C/2000 WM1 (LINEAR) Original Research Article

Using five high-resolution spectra of comet C/2000 WM1 (LINEAR) obtained on December 1 and 2, 2001 (UT) with the fiber fed extended range optical spectrograph (FEROS) installed on the 1.52-m reflector of the ESO (Chile, La Silla), we have constructed a high spectral resolution atlas and catalogue of cometary emission lines of this comet. Many emission lines of the molecules C2, C3, CN, CH, CH+, NH2, CO+, H2O+, and presumably CO and C2− were identified in the spectral range λλ 4000–9000 Å in the comet spectra. The total number of identified emission lines is 4537: C2 – 2734, NH2 – 1195, CN – 289, C3 – 158, CO – 60, H2O+ – 51, CH – 50, CO+ – 16, CH+ – 8, C2− – 5. Also there are many unidentified emission lines in the comet spectrum.