Spectral Response of the OII Spatial Heterodyne Spectrometer

Details Spectral Response of the OII Spatial Heterodyne Spectrometer Spectral Response of the OII Spatial Heterodyne Spectrometer

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942605r&link_type=abstract

American Astronomical Society, AAS Meeting #219, #426.05

Astronomy and Astrophysics

Astronomy

Scientific paper

This paper describes spectral and intensity calibration of a Spatial Heterodyne Spectrometer (SHS) designed to observe radial velocity resolved profiles of diffuse [OII] 3726 Å and 3729 Å emission lines from the warm (104 K), low-density (10-1 cm-3), ionized component of our Galaxy's interstellar medium. Measurements were carried out using calibration lamp and sky data in order to assess the [OII] SHS's sensitivity as a function of input aperture, a necessary step in the analysis of planetary nebula (PNe) datasets to be used in the instrument's final intensity calibration. Fully calibrated [OII] line intensities will help quantify variations in temperature and in ionization state within the WIM. This work was supported by the National Science Foundation's REU program through NSF Award AST-1004881.

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