Table 1: Pre-shock, shock front, and excursion ( $\equiv$ post-shock) gas temperature and number density as a function of position in the envelope and shock strengths. M is the Mach number (= $v_{\rm sh}$ / $v_{\rm esc}$ ) associated with each shock speed.
Star Position Shock vel. M Pre-shock Shock front Start of excursion

( $R_{\star }$ ) (km s^-1) T₀ (K) n₀ (cm^-3) T (K) n (cm^-3) T (K) n (cm^-3)

1.0 25.0 7.41 2600.0 3.62 (15) 30 206 1.99 (16) 6363 7.85 (16)

1.5 20.4 6.84 2038.5 1.46 (14) 20 464 7.91 (14) 4746 2.80 (15)

TX Cam 2.0 17.8 6.45 1715.4 2.01 (13) 15 490 1.07 (14) 3875 3.56 (14)

2.5 15.8 6.17 1500.4 5.01 (12) 12 517 2.65 (13) 3300 8.32 (13)

3.0 14.4 5.95 1344.9 1.76 (12) 10 522 9.25 (12) 2889 2.76 (13)

**Table 1:** Pre-shock, shock front, and excursion ( $\equiv$ post-shock) gas temperature and number density as a function of position in the envelope and shock strengths. M is the Mach number (= $v_{\rm sh}$ / $v_{\rm esc}$ ) associated with each shock speed.
Star	Position	Shock vel.	M	Pre-shock	Shock front	Start of excursion
	( $R_{\star }$ )	(km s^-1)		T₀ (K)	n₀ (cm^-3)	T (K)	n (cm^-3)	T (K)	n (cm^-3)
	1.0	25.0	7.41	2600.0	3.62 (15)	30 206	1.99 (16)	6363	7.85 (16)
	1.5	20.4	6.84	2038.5	1.46 (14)	20 464	7.91 (14)	4746	2.80 (15)
TX Cam	2.0	17.8	6.45	1715.4	2.01 (13)	15 490	1.07 (14)	3875	3.56 (14)
	2.5	15.8	6.17	1500.4	5.01 (12)	12 517	2.65 (13)	3300	8.32 (13)
	3.0	14.4	5.95	1344.9	1.76 (12)	10 522	9.25 (12)	2889	2.76 (13)

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