**Table 3:** Measured Fe XXI counts obtained from the available LETGS spectra.
	128.73 Å	117.5 Å	102.22 Å	98.87 Å
transm.^a	0.8050	0.8491	0.8993	0.9115
$A_{\rm eff}$ /cm²	3.67	6.17	6.71	7.24
$\beta$ Cet	587.4 $\pm$ 31.6	178.8 $\pm$ 23.1	198.9 $\pm$ 24.7	98.20 $\pm$ 17.6
$\lambda$ And	471.4 $\pm$ 29.4	139.5 $\pm$ 20.7	144.3 $\pm$ 24.9	109.7 $\pm$ 18.9
AD Leo	61.17 $\pm$ 14.2	15.48 $\pm$ 11.7	21.64 $\pm$ 12.9	14.89 $\pm$ 9.14
Algol	354.0 $\pm$ 25.4	120.3 $\pm$ 19.4	145.3 $\pm$ 19.9	77.86 $\pm$ 14.3
Capella	1086. $\pm$ 43.1	501.7 $\pm$ 33.9	362.0 $\pm$ 36.6	69.97 $\pm$ 21.1
EK Dra	52.02 $\pm$ 10.4	28.27 $\pm$ 11.5	9.360 $\pm$ 12.1	-
HR1099	386.8 $\pm$ 25.6	156.4 $\pm$ 19.6	142.3 $\pm$ 22.2	63.43 $\pm$ 15.4
UX Ari	167.6 $\pm$ 19.3	71.58 $\pm$ 17.6	35.31 $\pm$ 17.0	55.07 $\pm$ 13.0
YY Gem	46.10 $\pm$ 10.5	29.74 $\pm$ 10.7	8.531 $\pm$ 9.01	17.86 $\pm$ 7.87

^aISM transmission using N(H I) = 10¹⁸, N(He II)/N(H I) = 0.09, N(He II)/N(H I) = 0.01.

Source LaTeX | All tables | In the text