EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 600 (April 2017) A&A, 600 (2017) A61 Full HTML
Free Access

Table 2

Observational parameters.

Molecule Transition Frequency HPBW ηfss ηMB Δυ a Tsys Time RMSb
(GHz) (″) (km s-1) (K) (min) (K)
GBT
pNH3 23.7 32 0.95 0.91 0.072 45 94 0.103
pNH3 23.7 32 0.95 0.91 0.072 45 94 0.083
oNH3 23.9 32 0.95 0.91 0.072 45 94 0.096
APEX
oNH2D 332.8 19 0.97 0.73 0.040 263 86 0.027
pNH2D 332.8 19 0.97 0.73 0.040 263 86 0.027
oNHD2 335.5 19 0.97 0.73 0.040 227 86 0.021
pNHD2 335.4 19 0.97 0.73 0.040 227 86 0.021
mND3 309.9 20 0.97 0.73 0.043 195 75 0.019
pND3 306.7 20 0.97 0.73 0.043 178 75 0.019
N2D+ (4−3) 308.4 20 0.97 0.73 0.043 178 75 0.019
N2D+ (6−5) 462.6 14 0.95 0.60 0.057 594 97 0.043
N2H+ (5−4) 465.8 14 0.97 0.60 0.057 557 108 0.038
IRAM
oNH2D 85.9 29 0.95 0.81 0.068 166 15 0.080
pNH2D 110.2 23 0.94 0.79 0.053 249 22 0.098
N2D+ (2−1) 154.2 16 0.93 0.72 0.038 310 22 0.137

Notes.

(a)

Spectral resolution (=equivalent noise bandwidth, ENBW).

(b)

On the TMB scale at the original spectral resolution.

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.