Comet C/2020 F3 (NEOWISE) emission lines : J/A+A/656/A160


Authors : Cambianica P. orcid , Cremonese G., Munaretto G. (hide) , Cremonese G., Munaretto G. et..al

Bibcode : 2021A&A...656A.160C (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Solar system; Comets; Spectroscopy
UAT : Solar system, Comets, Spectroscopy

Observation (OC)

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Inserted into VizieR : 16-Dec-2021
Last modification : 21-Mar-2022

A high-spectral-resolution catalog of emission lines in the visible spectrum of comet C/2020 F3 (NEOWISE). (2021)

Keywords : comets general - comets: individual: C/2020 F3 (NEOWISE) - methods: observational - data analysis

Abstract:Comet C/2020 F3 (NEOWISE) is considered to be the brightest comet observed in the northern hemisphere since the passage of comet C/1995 O1 (Hale-Bopp) in 1997. Since the study of comets offers a unique opportunity to investigate the early stages of the formation and evolution of our Sun and the Solar System, we obtained high-resolution optical spectra (R={lambda}/{Delta}{lambda}=115000) of comet NEOWISE. The unique passage and its brightness yielded spectra with a large number of emission lines, providing information on the coma composition and the physical and chemical processes occurring in the nucleus. The spectra have been used to generate a catalog of emission lines to be used for future studies of comets since there are ...(more)
Abstract: (hide)
The catalog is based on the spectral extraction performed automatically by the HARPS-N Data Reduction pipeline. The basic processing steps consist in bias subtraction (the bias is computed on the over-scan regions of the frame), spectrum extraction, flat fielding, wavelength calibration, and normalization of the blaze continuum. The blaze-corrected spectrum is derived by dividing the extracted order spectra by the blaze function. The dust-scattered solar light is removed using a high-resolution solar analogue spectrum (Land 107-684) degraded to the same spectral resolution. Table C1 reports the wavelength corresponding to the sky emission and the relative intensity. Table C2 provides the observed wavelength ({lambda}), the relative intensity (I_rel_), the name of the molecule, and the transition (if mentioned in the reference).
Pamela Cambianica, pamela.cambianica(at)inaf.it

                
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