Table 4
Parameters estimated for the circumstellar envelopes.
| Source | Trot (K) | Ntot (1016cm−2) | θs (″) | (1016 cm) | Rco (1016 cm) | M (10−4 M⊙) | Ṁ (10−7 M⊙ yr−1) | vexp (km s−1) | texp (yr) | E(B − V) (CSM) (mag) | Av (CSM) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EY Hya | 13 ± 6 | 2.9 ± 1.0 | 2.3 | 1.5 | 3.7 | 2.7 | 5.8 | 10.4 ± 0.3 | 500 | 0.026 | 0.0084 |
| T Dra | 5.8 ± 1.2 | 11 ± 2 | 4.8 | 7.1 | 18 | 55 | 29 | 11.8 ± 0.3 | 1900 | 0.025 | 0.0081 |
| R Lmi | 15 ± 7 | 3.5 ± 1.3 | 3.4 | 1.5 | 3.7 | 3.0 | 4.2 | 6.6 ± 0.1 | 700 | 0.031 | 0.010 |
| R Uma | 10(*) | 3.0 ± 0.7 | 0.9 | 0.7 | 2.1 | 0.6 | 1.3 | 4.7 ± 0.4 | 500 | 0.027 | 0.0087 |
| RR Eri | 25(*) | 2.4 ± 0.1 | 1.9 | 1.1 | 2.9 | 1.2 | 4.1 | 12.0 ± 0.3 | 300 | 0.022 | 0.0071 |
| RT Cnc | 10(*) | 1.5 ± 0.2 | 1.3 | 0.5 | 1.3 | 0.15 | 0.7 | 7.2 ± 0.2 | 200 | 0.013 | 0.0042 |
| RU Her | 8±2 | 5.7 ± 1.5 | 2.8 | 3.0 | 7.6 | 20 | 16 | 7.5 ± 0.1 | 1300 | 0.051 | 0.017 |
| RW Boo(†) | 6.0 ± 1.2 | 2.2 ± 0.7 | 2.7 | 1.1 | 2.6 | 1.0 | 3.5 | 12.3 ± 1.2 | 300 | 0.020 | 0.0065 |
| RW Boo(1) | 7.7 ± 1.2 | 1.6 ± 0.7 | 1.4 | 0.5 | 1.3 | 0.2 | 0.8 | 8.0 ± 0.3 | 200 | 0.020 | 0.0065 |
| RW Boo(2) | 5.3 ± 1.2 | 1.9 ± 0.7 | 2.6 | 1.0 | 2.5 | 0.8 | 3.9 | 16.6 ± 0.9 | 200 | 0.020 | 0.0065 |
| RZ Uma | 2.5 ± 0.5 | 1.0 | 0.8 | 2.0 | 0.6 | 1.2 | 4.7 ± 0.3 | 500 | 0.022 | 0.0071 | |
| SV Peg | 8±2 | 5.6 ± 1.5 | 5.0 | 2.9 | 7.4 | 20 | 15 | 7.3 ± 0.1 | 1300 | 0.050 | 0.016 |
| V Eri | 14 ± 7 | 3.0 ± 1.1 | 3.4 | 1.5 | 3.8 | 2.7 | 5.9 | 10.2 ± 0.2 | 500 | 0.027 | 0.0087 |
| VY Uma | 7.5 ± 1.9 | 5.1 ± 1.1 | 3.0 | 1.9 | 4.8 | 6.9 | 2.0 | 6.6 ± 0.1 | 900 | 0.011 | 0.0035 |
| W Peg | 7±2 | 3.4 ± 1.2 | 2.8 | 1.5 | 3.7 | 2.9 | 4.5 | 7.4 ± 0.3 | 600 | 0.030 | 0.0097 |
| Y Crb | 7±3 | 3.0 ± 1.7 | 0.9 | 0.9 | 2.4 | 1.1 | 1.3 | 3.5 ± 0.4 | 800 | 0.027 | 0.0087 |
| Z Cnc | 10(*) | 2.0 ± 0.5 | 0.9 | 0.6 | 1.5 | 0.3 | 0.6 | 3.9 ± 0.2 | 500 | 0.018 | 0.0058 |
Notes. Column (1): name of the source, Col. (2): excitation temperature, col (3): CO column density, Col. (4): source radius in arcseconds, Col. (6): source radius in cm, Col. (6): photodisociation radius in cm, Col. (7): mass of the circumstellar envelope, Col. (8): mass-loss rate, Col. (9): average expansion velocity, Col. (10): expansion time, Col. (11): reddening produced by the CSM (see Table 3).(*) Fixed temperature.(†) estimated with an average RW Boo Vexp.(1) estimated for the RW Boo low Vexpcomponent.(2) estimated for the RW Boo high Vexp component (see Table A.1), components (1) and (2) are shown for illustrative purposes and were not taken into account in the analysis.
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