BIVER, N.; BOCKELEE-MORVAN, D.; CROVISIER, J.; LIS, D.C.; MORENO, R.; COLOM, P.; HENRY, F.; HERPIN, Fabrice; PAUBERT, Gabriel; WOMACK, M.

doi:10.1051/0004-6361:20053849

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

BIVER, N.
Laboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]

BOCKELEE-MORVAN, D.
Laboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]

CROVISIER, J.
Laboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]

Idioma

Article de revue

Este ítem está publicado en

Astronomy and Astrophysics - A&A. 2006, vol. 449-3, p. 1255-1270

EDP Sciences

Resumen en inglés

We present a comparative study of the relative abundances of CO, CH3OH, H2CO, HCN, HNC, CS, H2S, CH3CN, SO and HNCO in comets C/1999 T1 (McNaught-Hartley), C/2001 A2 (LINEAR), C/2000 WM1(LINEAR) and 153P/Ikeya-Zhang, four of the brightest comets seen in 2001–2002. This investigation is based on millimetre/submillimetre observations made with the IRAM 30-m, SEST, CSO and Kitt Peak 12-m telescopes. Although these four comets are expected to originate from the Oort cloud, they present significant differences in molecular abundances, especially as regards to the most volatile species: CO and H2S. In particular comet C/2000 WM1 looks quite depleted in these volatiles, suggesting it may have a different origin that the others. Heliocentric variations of molecular relative abundance in the coma are also investigated. Significant increases in the CS/HCN and HNC/HCN production rate ratios with decreasing heliocentric distances are observed.< Leer menos

Palabras clave en inglés

Radio lines: solar system

Submilimetre

Astrochemistry

Comets: general

Metadatos

Licencia de uso del documento

Radio wavelength molecular observations of comets C/1999 T1 (McNaught-Hartley), C/2001 A2 (LINEAR), C/2000 WM1 (LINEAR) and 153P/Ikeya-Zhang

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave en inglés

DOI

Orígen

Centros de investigación