Longslit spectroscopy with HDS

Longslit spectroscopy can be performed with HDS by the use of order-blocking filters. A single echelle order can therefore be dispersed over the full slit length (up to 60''). The following five filters are available.

Filter Centre (A) Width (A)
He4686 4688 28.4
O5007 5010 31.7
O6300 6307 29.7
Halpha 6580 54.6
S6717 6728 42.3

A sample data set of HDS longslit mode is aveirable here.

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