The First Detection of Diffuse Interstellar [OII] Emission and Confirmation That Variations in [NII]/Hα Trace Variations in Temperature

Authors

R. J. Reynolds, University of Wisconsin-MadisonFollow
E. J. Mierkiewicz, University of Wisconsin-MadisonFollow
F. L. Roesler, University of Wisconsin-MadisonFollow
J. M. Harlander, Saint Cloud State University
K. P. Jaehnig, University of Wisconsin-MadisonFollow

Submitting Campus

Daytona Beach

Department

Physical Sciences

Document Type

Poster

Publication/Presentation Date

6-2007

Abstract/Description

Using a newly developed Spatial Heterodyne Spectrometer (SHS), we have obtained the first radial velocity resolved emission-line profiles of diffuse [OII] λ3726 and λ3729 doublet emission from the warm (104 K) ionized component of our Galaxy's interstellar medium (WIM). These [OII] lines are a principal coolant for this widespread, photoionized gas and are a tracer of variations in the gas temperature resulting from unidentified heating processes that appear to be acting within the Galaxy's disk and halo.

Sponsorship/Conference/Institution

The Milky Way Halo - Stars and Gas Conference

Location

Bonn, Germany

Paper Number

Poster 2

Additional Information

Dr. Mierkiewicz was not affiliated with Embry-Riddle Aeronautical University at the time this poster was presented.

Scholarly Commons Citation

Reynolds, R. J., Mierkiewicz, E. J., Roesler, F. L., Harlander, J. M., & Jaehnig, K. P. (2007). The First Detection of Diffuse Interstellar [OII] Emission and Confirmation That Variations in [NII]/Hα Trace Variations in Temperature. , (). Retrieved from https://commons.erau.edu/publication/873