The HN Tau Jet in Various Emission Lines
Images of emission lines in HN Tau, taken from the 2000 epoch.
The horizontal line denotes the stellar position measured from the continuum,
which has been subtracted from these data. Adjacent contours differ by a factor
of two, and range from 20 ADU to 2560 ADU for all images except He I 5876A,
where the lowest contour is 10 ADU. A level of 20 ADU ranges from
3.2x10^-17 erg cm^-2 s^-1 per pixel at [O I] 6300A
5.6x10^-17 erg cm^-2 s^-1 per pixel at Ca II 8662A.