EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 697 (May 2025) A&A, 697 (2025) A206 Full HTML
Open Access

Table A.3

Physical parameters obtained by fitting the NH3 spectra between 23-25 GHz.

Label Rp (au) size (″) VLSR (km s−1) FWHM (km s−1) Tex (K) NNH3 (1016 cm−2) τ55(c)
(1) (2) (3) (4) (5) (6) (7) (8)
Eastern: +380 0.452(a) −8.1±0.1 7.5±0.3 183−10+11$\[183_{-10}^{+11}\]$ 7.08−0.31+0.25$\[7.08_{-0.31}^{+0.25}\]$ 0.2
Western: −380 0.452(a) −4.3±0.1 3.9±0.2 165−12+11$\[165_{-12}^{+11}\]$ 3.98−0.17+0.24$\[3.98_{-0.17}^{+0.24}\]$ 0.2
Central: (b) 0 0.452 −4.1±0.2 4.1±0.8 176−13+15$\[176_{-13}^{+15}\]$ 0.21−0.02+0.03$\[0.21_{-0.02}^{+0.03}\]$ 0.01
0 0.452 +1.2±0.2 5.0±0.8 216−16+16$\[216_{-16}^{+16}\]$ 0.35−0.04+0.05$\[0.35_{-0.04}^{+0.05}\]$ 0.01

Notes. Columns 1 to 3: Pointing position with reference to Fig. 3, sky projected distance from the star, and extent of integrated spectra, respectively. Columns 4 and 5: Combined LSR velocity and FWHM of the NH3 para lines with uncertainties, the former to be compared with a systemic velocity of −4.5 km s−1. Columns 6 and 7: Excitation (and kinetic) temperature and column density of NH3 gas modelled with MCWeeds (with fitted uncertainties). Column 8: Opacity of the NH3 (5, 5) line. (a)Extended emission. (b)Composition of two velocity components, one per line. (c)We explicitly note that all fitted components are optically thin.

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.