HST far-ultraviolet imaging of DG Tauri - Fluorescent molecular hydrogen emission from the wide opening-angle outflow

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Table 2

Contribution of strong atomic lines to the observed counts in the difference images estimated from the IUE spectra.

Line	Wavelength	Flux	Count fraction in
	(Å)	10^-15 erg s^-1	difference image

Si iv^a	1388−1409	38 (≲4.5)	F140−F150:	30% (4%)
C iv	1542−1557	55 (20)	F150−F165:	18% (9%)
He ii	1634−1646	29	F150−F165:	5% (6%)
[O iii]	1657−1669	36	F150−F165:	3% (3%)

Notes.Values in brackets are derived from the STIS E140H or GHRS spectra. The filters are abbreviated as F plus cutoff wavelength.

^(a)

Includes emission from [O iv].

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