Increased complexity in interstellar chemistry: detection and chemical modeling of ethyl formate and n-propyl cyanide in Sagittarius B2(N)

Home

All issues

Volume 499 / No 1 (May III 2009)

A&A, 499 1 (2009) 215-232

Full HTML

Highlight

Open Access

Table 5:

Parameters of our best-fit LTE models of formic acid, methyl formate, ethanol, and dimethyl ether.
Molecule^a	Size^b	$T_{\rm rot}$ ^c	N^d	$\Delta V^{e}$	$V_{{\rm off}}$ ^f
	('')	(K)	(cm^-2)	(km s^-1)	(km s^-1)
(1)	(2)	(3)	(4)	(5)	(6)
t-HCOOH	5.0	70	$1.50 \times 10^{16}$	8.0	-1.0
	5.0	70	$7.50 \times 10^{15}$	8.0	9.0
CH₃OCHO	4.0	80	$4.50 \times 10^{17}$	7.2	0.0
	4.0	80	$1.50 \times 10^{17}$	7.2	10.0
C₂H₅OH	3.0	100	$8.40 \times 10^{17}$	8.0	0.0
	3.0	100	$3.00 \times 10^{17}$	7.0	10.0
CH₃OCH₃	2.5	130	$2.30 \times 10^{18}$	6.0	0.0
	2.5	130	$1.10 \times 10^{18}$	6.0	10.0

Notes: ^a We used the CDMS entry for t-HCOOH (version 1), and the JPL entries for CH₃OCHO (ver. 1), C₂H₅OH (ver. 4), and CH₃OCH₃ (ver. 1). See references to the laboratory data therein. ^b Source diameter (FWHM). ^c Temperature. ^d Column density. ^e Linewidth (FWHM). ^f Velocity offset with respect to the systemic velocity of Sgr B2(N) $V_{{\rm lsr}} = 64$ km s^-1.

Source LaTeX | All tables | In the text

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.