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Table 7.
Physical parameters used.
| Parameter | T Tau | TW Hya | HD 163296 |
|---|---|---|---|
| normalized EM (1052 cm−3) | 50 [1] | 7 [2] | 4.4 [3] |
| Spot covering fraction (%) | 3 [4] | 3 [5] | 8 [6] |
| Spot radius (1010 cm) | 9 | 2 | 9 |
| log X-ray densitya | <10.4 | 11.8 | <10.4 |
| log pre-shock densityb | 9.5 | 11.3 | 9.5 |
| vshock (km/s) | 400 | 500 | 450 |
| dcool (108 cm) | 49 | 2.1 | 83 |
| Vertical height (108 cm) | 2.1 × 103 | 1.5 | 171 |
| Associated Ṁacc (10−10 M⊙ yr−1) | 1.1 | 4.3 | 1.4 |
| Typical Ṁacc (10−9 M⊙ yr−1) | 100 | a few | a few 100 |
Notes. References are provided in square brackets.
References. [1] This work; [2] Brickhouse et al. (2010); [3] Günther & Schmitt (2009); [4] Calvet et al. (2004); [5] Batalha et al. (2002); [6] Mendigutía et al. (2013).
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