This is an old revision of the document!
Table of Contents
The Virginia Tech Spectral-Line Survey (VTSS)
The VTSS is a wide-field image survey of the Galaxy's warm ionized interstellar medium (a 10,000 K plasma).
The survey is carried out using the Virginia Tech Spectral Line Imaging Camera (SLIC),
specially designed for obtaining sensitive, arcminute-resolution,
10-degree wide images of the 6563Å H-alpha recombination line of hydrogen,
and the [SII]6717,6731Å doublet emission of singly ionized sulfur.
This survey will cover the northern hemisphere (declinations greater than -15 degrees).
The resolution of the map is 1.6' and units are Rayleighs (R).
The Continuum-Corrected H-alpha images are produced by a process including the alignment and subtraction of a suitably scaled version of a continuum image from the H-alpha image.
Reference
| VTSS Halpha | VTSS Continuum corrected Halpha |
|---|---|