Open Access

Table 2

Spectral properties of AlO, AlOH, and AlCl as observed with ALMA in IK Tau (top part of the table) and R Dor (bottom part).

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
Molecule Velocity Velocitya Peak Integrated Velocity Velocitya Peak Integrated Angular
width asymmetry flux flux width asymmetry flux flux width
(km s-1) (km s-1) (Jy) (Jy km s-1) (km s-1) (km s-1) (Jy) (Jy km s-1) (mas)

IK Tau

Aperture 320 mas Aperture 800 mas


AlO N = 98 3.40 0.32 0.036 0.247 32.30 14.98 0.186 3.211 800
AlOH J = 1110 11.84 1.06 0.073 0.466 11.84 1.06 0.121 0.794 640
AlCl J = 2423 6.70 2.92 0.024 0.228 3.35 2.92 0.040 0.255 160

R Dor

Aperture 300 mas Aperture 1000 mas


AlO N = 98 51.00b 3.67 0.128 4.032 47.60 10.47 0.166 4.570 840
AlOH J = 1110 3.38 0.36 0.027 0.119 240
AlCl J = 2423 3.35 2.65 0.021 0.113 9.22 1.54 0.058 0.326 240

Notes. Values for the velocity width, velocity asymmetry, angular width, and peak and integrated flux are only given in the case of a clear detection.

(a)

The shift of the centroid w.r.t. the LSR velocity of the star is obtained by dividing the value of the “velocity asymmetry” by two.

(b)

Large velocity width is caused by the hyperfine structure; see Sect. 3.1.

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.