JOYS: Linking the molecular ice and gas phase composition toward the high-mass hot core IRAS 18089–1732

Home

All issues

Volume 709 (May 2026)

A&A, 709 (2026) A235

Full HTML

Open Access

Table E.1

Molecular column densities in the ices toward IRAS 18089 using different test setups.

Molecule	Test A fit range			Test B MCMC			Test C local continuum			Test D no gas phase correction
	N_ice	$Δ N_{i c e}^{l o w}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{low}}$$	$Δ N_{i c e}^{u p p}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{upp}}$$	N_ice	$Δ N_{i c e}^{l o w}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{low}}$$	$Δ N_{i c e}^{u p p}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{upp}}$$	N_ice	$Δ N_{i c e}^{l o w}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{low}}$$	$Δ N_{i c e}^{u p p}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{upp}}$$	N_ice	$Δ N_{i c e}^{l o w}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{low}}$$	$Δ N_{i c e}^{u p p}$ $Mathematical equation: $\Delta N_\mathrm{ice}^{\mathrm{upp}}$$
	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)	(cm⁻²)
OCN⁻	5.4(17)	1.1(17)	1.1(17)	5.4(17)	1.4(17)	1.4(17)	4.4(17)	9.4(16)	9.4(16)	5.8(17)	1.2(17)	1.2(17)
SO₂	4.5(16)	1.1(16)	1.1(16)	4.7(16)	1.2(16)	1.2(16)	2.8(16)	8.8(15)	8.8(15)	5.5(16)	1.3(16)	1.3(16)
H₂CO	...	...	...	...	...	...	...	...	...	...	...	...
CH₄	4.6(17)	9.3(16)	9.3(16)	4.5(17)	1.2(17)	1.2(17)	4.1(17)	8.3(16)	8.3(16)	5.1(17)	1.0(17)	1.0(17)
HCOO⁻	3.7(17)	7.5(16)	7.5(16)	3.6(17)	9.7(16)	9.8(16)	3.2(17)	6.5(16)	6.5(16)	3.0(17)	6.1(16)	6.1(16)
HCOOH	5.7(16)	1.8(16)	1.8(16)	3.6(16)	7.7(15)	7.9(15)	7.5(16)	2.1(16)	2.1(16)	5.1(16)	1.8(16)	1.8(16)
CH₃CHO	1.1(17)	2.7(16)	2.7(16)	9.5(16)	1.9(16)	1.9(16)	2.0(17)	4.2(16)	4.2(16)	1.3(17)	3.1(16)	3.1(16)
CH₃OCHO	...	...	...	...	...	...	7.7(15)	7.2(15)	7.2(15)	...	...	...
CH₃COOH	6.4(16)	1.4(16)	1.4(16)	3.4(16)	6.8(15)	6.8(15)	5.7(16)	1.2(16)	1.2(16)	4.2(16)	9.9(15)	9.9(15)
C₂H₅OH	7.6(16)	2.5(16)	2.5(16)	4.3(16)	8.6(15)	8.7(15)	5.9(16)	2.4(16)	2.4(16)	1.3(17)	3.4(16)	3.4(16)
CH₃OCH₃	1.7(17)	3.9(16)	3.9(16)	9.0(16)	1.8(16)	1.9(16)	2.1(17)	4.8(16)	4.8(16)	1.6(17)	3.9(16)	3.9(16)
CH₃COCH₃	4.6(16)	1.3(16)	1.3(16)	1.7(16)	3.5(15)	3.5(15)	4.2(16)	1.3(16)	1.3(16)	...	...	...

Total fit RSS	4.7			5.2			4.6			4.9

Notes. The format of the column density with its upper and lower uncertainty ( $N_{- Δ N^{l o w}}^{+ Δ N^{u p p}}$ $Mathematical equation: $N^{+\Delta N^{\mathrm{upp}}}_{-\Delta N^{\mathrm{low}}}$$ ) is a(b)=a × 10^b. The ice column densities of the final fit are summarized in Table D.1 resulting in RSS of 4.7.

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.