| Issue |
A&A
Volume 429, Number 3, January III 2005
|
|
|---|---|---|
| Page(s) | 1097 - 1105 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361:20041695 | |
| Published online | 05 January 2005 | |
Improved constraints on Neptune's atmosphere from submillimetre-wavelength observations
1
LESIA, Observatoire de Paris-Meudon, 92195 Meudon, France e-mail: andre.marten@obspm.fr
2
Joint Astronomy Centre, Hilo, HI 96720, USA
3
Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA
4
Department of Astronomy and Bosscha Observatory, Bandung, 40132, Indonesia
Received:
20
July
2004
Accepted:
14
September
2004
We describe observations of Neptune carried out using the
James Clerk Maxwell Telescope (Mauna Kea, Hawaii) during September
1998. High-quality data for the sub-mm-wavelength rotational
transitions of HCN (
) and CO (
and 4-3) were obtained,
and we use the data to make improved determinations of the abundances
of these trace species and the temperature profile of Neptune's
atmosphere.
Key words: planets and satellites: individual: Neptune / radio lines: solar system
© ESO, 2005
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