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 = 9−8 | 3.40 | −0.32 | 0.036 | 0.247 | 32.30 | 14.98 | 0.186 | 3.211 | 800 |
| AlOH J = 11−10 | 11.84 | 1.06 | 0.073 | 0.466 | 11.84 | 1.06 | 0.121 | 0.794 | 640 |
| AlCl J = 24−23 | 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 = 9−8 | 51.00b | 3.67 | 0.128 | 4.032 | 47.60 | 10.47 | 0.166 | 4.570 | 840 |
| AlOH J = 11−10 | 3.38 | −0.36 | 0.027 | 0.119 | − | − | − | − | 240 |
| AlCl J = 24−23 | 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.
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.
Large velocity width is caused by the hyperfine structure; see Sect. 3.1.
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