Comet C/2020 F3 (NEOWISE) IRAM and NOEMA spectra : J/A+A/668/A171


Authors : Biver N. orcid , Boissier J., Bockelee-Morvan D. (hide) , Boissier J., Bockelee-Morvan D. et..al

Bibcode : 2022A&A...668A.171B (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Comets; Radio lines; Spectra, millimetric/submm
UAT : Comets, Radio astronomy, Radio spectroscopy

Observation (OC)

Records :

Inserted into VizieR : 20-Dec-2022
Last modification : 28-Nov-2024

Observations of comet C/2020 F3 (NEOWISE) with the IRAM telescopes. (2022)

Keywords : comets general - comets: individual: C/2020 F3 - radio lines: planetary systems - radio continuum: planetary systems - submillimeter: planetary systems

Abstract:We present the results of millimetre-wave spectroscopic and continuum observations of comet C/2020 F3 (NEOWISE) undertaken with the Institut de RadioAstronomie Millimetrique (IRAM) 30-m and the NOrthern Extended Millimeter Array (NOEMA) telescopes on 22, 25-27 July and 7 August 2020. Production rates of HCN, HNC, CH_3_OH, CS, H_2_CO, CH_3_CN, H_2_S, and CO were determined with upper limits on 6 others species. The comet shows abundances within the range observed in other comets. The CO abundance is low (3.2% relative to water) while H_2_S is relatively abundant (1.1% relative to water). The H_2_CO abundance shows a steep variation with heliocentric distance, possibly related to a distributed production from the dust or macro-molecular source. ...(more)
Abstract: (hide)
Individual, time averaged, IRAM 30m and NOEMA telescope spectra as presented in Figs. 4 to 11, 13, and 14, obtained with the FTS, VESPA or POLYFIX correlators. One fits file per spectrum, fits output are produced from class. (http://www.iram.fr/IRAMFR/GILDAS/).
Nicolas Biver, Nicolas.Biver(at)obspm.fr

                
Catalogue provenance