EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 587 (March 2016) A&A, 587 (2016) A139 Full HTML
Free Access

Table 2

Herschel/HIFI observed water line transitions in the source sample.

Species/transitions Frequencyb Wavelength Eu ncritc HIFI Beam ηmb Tsys rmsd
[GHz] [μm] [K] [cm-3] band [′′] [K] [mK]
o-HO 110−101a 547.6764 547.4 60.5 3.5 × 107 1a 37.8 0.62 80 27
o-HO 110−101 552.0209 543.1 61.0 3.5 × 107 1a 37.8 0.62 70 28
p-HO 202−111 994.6751 301.4 100.6 5.8 × 107 4a 21.1 0.63 290 44
o-HO 312−303 1095.6274 273.8 248.7 1.6 × 108 4b 19.9 0.63 380 32
p-HO 111−000 1101.6982 272.1 52.9 1.9 × 108 4b 19.9 0.63 390 20
p-HO 111−000 1107.1669 272.1 52.9 1.9 × 108 4b 19.9 0.63 380 32
o-HO 212−101 1662.4644 180.3 113.6 5.6 × 108 6b 12.7 0.58 1410 215
o-H2O 110−101a 556.9361 538.3 61.0 3.5 × 107 1a 37.1 0.62 80 27
p-H2O 211−202 752.0332 398.6 136.9 7.1 × 107 2b 28.0 0.64 90 36
p-H2O 524−431 970.3150 309.0 598.8 9.0 × 106 4a 21.8 0.63 620 25
p-H2O 202−111 987.9268 303.5 100.8 5.8 × 107 4a 21.3 0.63 340 79
o-H2O 312−303 1097.3651 273.2 249.4 1.6 × 108 4b 19.9 0.63 380 32
p-H2O 111−000 1113.3430 269.0 53.4 1.9 × 108 4b 19.7 0.63 395 20
o-H2O 221−212 1661.0076 180.5 194.1 3.1 × 108 6b 12.7 0.58 1410 215
o-H2O 212−101 1669.9048 179.5 114.4 5.6 × 108 6b 12.6 0.58 1410 215

Notes.

(a)

This line was mapped in OTF mode.

(b)

Frequencies are taken from Pearson et al. (1991).

(c)

At 100 K.

(d)

The rms is the noise in δν = 1.1 MHz.

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.