On the chemical ladder of esters - Detection and formation of ethyl formate in the W51 e2 hot molecular core

Home

All issues

Volume 599 (March 2017)

A&A, 599 (2017) A26

Full HTML

Free Access

Table A.2

Selected unblended transitions of ET.

Frequency	Transition^b	E_up	∫ T_mbΔv
(GHz)		(K)	(K km s^-1)^a

100.990102	8(2, 7)–8(1, 8)	35	0.8
103.890904	6(4, 3)–5(4, 2) v_t = 0−0	94	0.3
103.890904	6(4, 2)–5(4, 1) v_t = 0−0	94	0.3
103.895533	6(3, 4)–5(3, 3) v_t = 1−1	90	0.4
106.649479	13(1, 12)–13(0, 13)	79	1.9
135.830641	13(2, 12)–13(1, 13)	81	2.0
137.845614	8(2, 7)–7(2, 6) v_t = 1−1	96	1.5
138.794762	8(3, 5)–7(3, 4) v_t = 1−1	103	1.3
154.930188	9(2, 8)–8(2, 7) v_t = 1−1	104	2.2
238.70176	11(2, 10)–10(1, 9)	60	6.9
240.110238	27(2, 25)–27(1, 26)	327	1.6
242.816446	14(5, 10)–13(5, 9) v_t = 0−0	175	5.5
242.825099	14(5, 9)–13(5, 8) v_t = 0−0	175	5.5
243.349723	14(4, 10)–13(4, 9) v_t = 0−0	164	6.5

Notes.

^(a)

From the LTE model fit (see text).

^(b)

The transitions of the gauche state of ethanol are designated with v_t = 0 (gauche +) and v_t = 1 (gauche −), while the transitions without v number correspond to the trans state.

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.