The D/H ratio in the atmospheres of Uranus and Neptune from Herschel-PACS observations

Free Access

Table 1

Summary of PACS observations.

Target	Exposure	HD Line	Date	λ range
	[s]			[μm]

Uranus	6941^a	R(0)	24-Nov.-09	102–145
Uranus	7996^a	R(1)	25-Nov.-09	52–62
Uranus	2394^b	R(0), R(1)	6-Jul.-10	56, 112
Uranus	2 × 1210^b	R(0), R(1)	12-Jan.-11	56, 112
Uranus	2 × 1210^b	R(0), R(1)	13-Jan.-11	56, 112
Uranus	8^c × 1210^b	R(0), R(1)	5-Jun.-11	56, 112
Neptune	6941^a	R(0)	30-Oct.-09	102–145
Neptune	7996^a	R(1)	30-Oct.-09	52–62
Neptune	3168^b	R(0), R(1)	25-May-10	56, 112
Neptune	8^c × 730^b	R(0)	5-Jun.-11	112
Neptune	8^c × 730^b	R(1)	5-Jun.-11	56

Notes.All observations have been carried out in standard chopped-nodded mode. The R(0) line has been measured in the first grating order and the R(1) line in the third one, except for the eight observations of the R(1) line on Neptune, where the line was only seen in the second grating order.

^(a)

Range scan mode.

^(b)

Line scan mode.

^(c)

Observations taken within the OT1_gorton01_1 observing program have been executed several times on the same day at different longitudes to assess longitudinal variability of temperature.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.