Table 6: Comet production model parameters.
Comet mm yyyy Q_o r_o $\delta v_{\textrm{o}}$ $\alpha$ $\tau$ Reference

[10²⁹ s^-1] [AU] [km s^-1] [s]

C/1995 O1 (Hale-Bopp) 04 1997 100 0.914 1.8 3.0 5600 Colom et al. (1999)

C/2001 A2-B (LINEAR) 07 2001 0.28 1.130 1.49 3.0 5400 F. Bensch (priv. comm.)

153P/Ikeya-Zhang 04 2002 0.92 1.000 1.77 3.21 5600 Dello Russo et al. (2004)

C/2001 Q4 (NEAT) 05 2004 1.8 1.017 1.67 3.0 5800 N. Biver (priv. comm.)

C/2002 T7 (LINEAR) 05 2004 4.5 0.645 1.59 3.0 5800 N. Biver (priv. comm.)

**Table 6:** Comet production model parameters.
Comet	mm yyyy	Q_o	r_o	$\delta v_{\textrm{o}}$	$\alpha$	$\tau$	Reference
		[10²⁹ s^-1]	[AU]	[km s^-1]	[s]
C/1995 O1 (Hale-Bopp)	04 1997	100	0.914	1.8	3.0	5600	Colom et al. (1999)
C/2001 A2-B (LINEAR)	07 2001	0.28	1.130	1.49	3.0	5400	F. Bensch (priv. comm.)
153P/Ikeya-Zhang	04 2002	0.92	1.000	1.77	3.21	5600	Dello Russo et al. (2004)
C/2001 Q4 (NEAT)	05 2004	1.8	1.017	1.67	3.0	5800	N. Biver (priv. comm.)
C/2002 T7 (LINEAR)	05 2004	4.5	0.645	1.59	3.0	5800	N. Biver (priv. comm.)

Source LaTeX | All tables | In the text

	1 Introduction
	2 Ammonia line observations
	3 Hydroxyl line observations
	4 Upper limits on NH₃ column densities and production rates
	5 Ammonia-to-water ratio
	6 Conclusions
	References