EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 539 (March 2012) A&A, 539 (2012) A132 Full HTML
Free Access

Table 1

Parameters for the observed HDO, H2O, O, and HD18O lines1.

Species Frequency J Ka,Kc Eup/k A ij Telescope Beam F eff B eff rms2 FWHM Ref.3
(GHz) (K) (s-1) size (″) (mK) (K km s-1) (km s-1)
HDO 481.7795 31,2−31,3 168 4.74  ×  10-5 HIFI 1a 44.0 0.96 0.76 15  ≤ 0.12 a
HDO 490.5966 20,2−11,1 66 5.25  ×  10-4 HIFI 1a 43.9 0.96 0.76 9 0.60 4.9 a
HDO 509.2924 11,0−10,1 47 2.32  ×  10-3 HIFI 1a 42.3 0.96 0.76 9 1.08 5.8 a
HDO 599.9267 21,1−20,2 95 3.45  ×  10-3 HIFI 1b 35.9 0.96 0.75 9 0.83 4.9 a
HDO 753.4112 31,2−30,3 168 5.90  ×  10-3 HIFI 2b 28.6 0.96 0.75 22 0.27 4.3 a
HDO 848.9618 21,2−11,1 84 9.27  ×  10-4 HIFI 3a 25.4 0.96 0.75 20 0.54 5.3 a
HDO 893.6387 11,1−00,0 43 8.35  ×  10-3 HIFI 3b 24.1 0.96 0.74 18 0.40 5.2 a
HDO 919.3109 20,2−10,1 66 1.56  ×  10-3 HIFI 3b 23.4 0.96 0.74 25 0.93 5.8 a
HDO 995.4115 30,3−21,2 131 7.04  ×  10-3 HIFI 4a 21.7 0.96 0.74 32 1.10 7.0 a
HDO 1009.9447 21,1−11,0 95 1.56  ×  10-3 HIFI 4a 21.0 0.96 0.74 29 0.38 6.5 a
HDO 1507.2610 31,2−21,1 168 6.58  ×  10-3 HIFI 6a 14.1 0.96 0.72 257  ≤ 2.04 a
HDO 1625.4081 31,3−20,2 144 4.49  ×  10-2 HIFI 6b 13.0 0.96 0.71 238  ≤ 1.89 a
HDO 80.5783 11,0−11,1 47 1.32  ×  10-6 IRAM-30 m 31.2 0.95 0.78 14 0.54 6.0 b,d
HDO 225.8967 31,2−22,1 168 1.32  ×  10-5 IRAM-30 m 11.1 0.91 0.54 34 2.15 7.4 b,d
HDO 241.5616 21,1−21,2 95 1.19  ×  10-5 IRAM-30 m 10.4 0.91 0.51 23 2.27 6.8 b
HDO 464.9245 10,1−00,0 22 1.69  ×  10-4 JCMT 10.8 – 0.55 63 5.50 5.9 c
p-H2O 745.3202 21,1−20,2 136 6.83  ×  10-3 HIFI 2b 28.4 0.96 0.75 18 0.34 5.2 a
p-H2O 970.2720 42,2−33,1 452 6.71  ×  10-4 HIFI 4a 21.9 0.96 0.74 31  ≤ 0.23 a
p-H2O 994.6751 20,2−11,1 101 6.02  ×  10-3 HIFI 4a 21.3 0.96 0.74 35 0.81 7.0 a
p-H2O 1101.6983 11,1−00,0 53 1.79  ×  10-2 HIFI 4b 19.2 0.96 0.74 44 0.63 5.3 a
p-H2O 1188.8631 42,2 − 41,3 452 2.73  ×  10-2 HIFI 5a 17.8 0.96 0.64 125  ≤ 0.92 a
p-O 1199.0056 22,0−21,1 194 1.76  ×  10-2 HIFI 5a 17.7 0.96 0.64 90  ≤ 0.66 a
p-O 1605.9625 41,3 − 40,4 395 3.71  ×  10-2 HIFI 6b 13.2 0.96 0.71 339  ≤ 2.49 a
o-O 489.0543 42,3−33,0 4304 6.89  ×  10-5 HIFI 1a 43.4 0.96 0.76 14  ≤ 0.10 a
o-O 547.6764 11,0−10,1 604 3.29  ×  10-3 HIFI 1a 38.7 0.96 0.75 8 0.98 7.0 a
o-O 1095.6274 31,2−30,3 2494 1.62  ×  10-2 HIFI 4b 19.4 0.96 0.74 49 0.38 3.0 a
o-O 1136.7036 32,1−31,2 3034 2.15  ×  10-2 HIFI 5a 18.7 0.96 0.64 103  ≤ 0.76 a
o-O 1181.3940 31,2−22,1 2494 2.89  ×  10-3 HIFI 5a 17.9 0.96 0.64 108  ≤ 0.79 a
o-O 1633.4836 22,1−21,2 1924 2.91  ×  10-2 HIFI 6b 13.0 0.96 0.71 264  ≤ 1.94 a
o-O 1655.8676 21,2−10,1 1144 5.46  ×  10-2 HIFI 6b 12.8 0.96 0.71 226  ≤1.66 a
o-O 1719.2502 30,3−21,2 1964 5.12  ×  10-2 HIFI 7a 12.3 0.96 0.71 277  ≤2.04 a
p-O 1107.1669 11,1−00,0 53 1.81  ×  10-2 HIFI 4b 19.1 0.96 0.74 47  ≤0.34 a
o-O 552.0210 11,0−10,1 614 3.37  ×  10-3 HIFI 1a 38.4 0.96 0.75 11 0.58 7.1 a
HD18O 883.1894 11,1−00,0 42 7.96  ×  10-3 HIFI 3b 24.0 0.96 0.75 22  ≤ 0.16 a

Notes. 

(1)

The frequencies, the upper state energies (Eup), and the Einstein coefficients (Aij) of HDO and O come from the spectroscopic catalog JPL (Pickett et al. 1998). The ortho/para separation of O was carried out in the CASSIS database.

(2)

The rms is computed for a spectral resolution of 0.7 km s-1 for the HDO transitions and 0.6 km s-1 for the O, O, and HD18O transitions.

(3)

References: a) this work; b) Caux et al. (2011); c) Stark et al. (2004); d) Parise et al. (2005).

(4)

The o-O and o-O upper energy levels quoted in the table assume that the fundamental 11,0−10,1 level lies at 34 K and not at 0 K.

(5)

This value corresponds to the ratio between the beam efficiency and the forward efficiency.

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.