Table 4: Infrared photometry of the sources in the IRS17 field which have been recognized as possible exciting sources of the discovered jets.
Source H K L M N^a

(mag) (mag) (mag) (mag) (mag)

25 $12.00\pm0.01$ $10.70\pm0.00$ $8.966\pm0.03$ $8.46\pm0.06$ $5.7\pm0.3$

32 $15.40\pm0.03$ $14.34\pm0.03$ >13.5 >10.7 -

37 $15.89\pm0.04$ $13.78\pm0.01$ $10.74\pm0.04$ $9.73\pm0.08$ >6^b

40^c $12.40\pm0.01$ $10.71\pm0.00$ $8.918\pm0.03$ $8.64\pm0.06$ $6.1\pm0.4$

40-1 $13.69\pm0.02$ $12.34\pm0.01$ - - -

40-2 $12.97\pm0.01$ $11.12\pm0.00$ - - -

40-3 $15.32\pm0.03$ $13.98\pm0.01$ $11.98\pm0.05$ $10.9\pm0.3$ -

40-5 $15.52\pm0.03$ $14.12\pm0.03$ - - -

57 $13.16\pm0.01$ ^d $9.92\pm0.00$ ^d $5.882\pm0.03$ $4.876\pm0.06$ $1.64\pm0.2$

Notes:
^a The reported error includes the uncertainty associated with the calibration procedure (see text).
^b 3 $\sigma$ lower limit.
^c Photometry integrated over the six peaks which contribute to #40.
^d Photometry taken from M99 since this source is saturated in our ISAAC image.

**Table 4:** Infrared photometry of the sources in the IRS17 field which have been recognized as possible exciting sources of the discovered jets.
Source	H	K	L	M	N^a
	(mag)	(mag)	(mag)	(mag)	(mag)
25	$12.00\pm0.01$	$10.70\pm0.00$	$8.966\pm0.03$	$8.46\pm0.06$	$5.7\pm0.3$
32	$15.40\pm0.03$	$14.34\pm0.03$	>13.5	>10.7	-
37	$15.89\pm0.04$	$13.78\pm0.01$	$10.74\pm0.04$	$9.73\pm0.08$	>6^b
40^c	$12.40\pm0.01$	$10.71\pm0.00$	$8.918\pm0.03$	$8.64\pm0.06$	$6.1\pm0.4$
40-1	$13.69\pm0.02$	$12.34\pm0.01$	-	-	-
40-2	$12.97\pm0.01$	$11.12\pm0.00$	-	-	-
40-3	$15.32\pm0.03$	$13.98\pm0.01$	$11.98\pm0.05$	$10.9\pm0.3$	-
40-5	$15.52\pm0.03$	$14.12\pm0.03$	-	-	-
57	$13.16\pm0.01$ ^d	$9.92\pm0.00$ ^d	$5.882\pm0.03$	$4.876\pm0.06$	$1.64\pm0.2$

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and results
	3 Analysis and discussion
	4 Summary
	References