Table 4: Projected sizes and speeds of the simulated XZ Tauri outer bowshock as it evolves. Distances are quoted for the latter year of the age interval. There is a minimum error of $\pm 6$ km s $^{\rm -1}$ in the simulation speeds.
Simulation age Corresponding observation Distance Bubble Longitudinal Transverse

/age interval (years) date/interval from source (AU) width (AU) speed (km s $^{\rm -1}$ ) speed (km s $^{\rm -1}$ )

15 1995 Jan. 5 590 288 - -

15-18 1995 Jan. 5 to 1998 Mar. 25 695 360 164 67

18-19 1998 Mar. 25 to 1999 Feb. 3 722 386 148 63

19-20 1999 Feb. 3 to 2000 Feb. 6 749 402 129 51

20-21 2000 Feb. 6 to 2001 Feb. 10 775 420 115 44

**Table 4:** Projected sizes and speeds of the simulated XZ Tauri outer bowshock as it evolves. Distances are quoted for the latter year of the age interval. There is a minimum error of $\pm 6$ km s $^{\rm -1}$ in the simulation speeds.
Simulation age	Corresponding observation	Distance	Bubble	Longitudinal	Transverse
/age interval (years)	date/interval	from source (AU)	width (AU)	speed (km s $^{\rm -1}$ )	speed (km s $^{\rm -1}$ )
15	1995 Jan. 5	590	288	-	-
15-18	1995 Jan. 5 to 1998 Mar. 25	695	360	164	67
18-19	1998 Mar. 25 to 1999 Feb. 3	722	386	148	63
19-20	1999 Feb. 3 to 2000 Feb. 6	749	402	129	51
20-21	2000 Feb. 6 to 2001 Feb. 10	775	420	115	44

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