Optical emission line studies and the warm, ionized component of the local interstellar medium

Details Optical emission line studies and the warm, ionized component of the local interstellar medium Optical emission line studies and the warm, ionized component of the local interstellar medium

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2345...97r&link_type=abstract

In NASA. Goddard Space Flight Center Local Interstellar Medium, No. 81 p 97-108 (SEE N85-15539 06-90)

Computer Science

6

Galactic Radiation, Interstellar Gas, Ionized Gases, Line Spectra, Background Radiation, Electron Density (Concentration), Sun

Scientific paper

Observations of diffuse, galactic H alpha, N2 lambda 6583, and S2 6716 emission lines provide evidence for a warm (10,000K), primarily ionized component of the interstellar medium distribution throughout the galactic disk. This component of the interstellar gas has an electron density approximately equals 0.1-0.2/cu cm and occupies about 10 to 30% of the interstellar volume. Interstellar H alpha emission near the galactic poles, the dispersion measure of a nearby pulsar, and observations of interstellar gas flowing into the solar system indicate that this ionized component is an important constituent of the interstellar medium in the solar neighborhood. The intensity of the H alpha background at high galactic latitudes implies that this component is maintained by an average hydrogen ionization rate in the vicinity of the Sun of (2-4) x 100,000 s(-1) per square cm of galactic disk. The emission measure is 1.3 to 2.3 cm (-6) pc toward the galactic poles. The sources of this ionization were not identified but may include escaping Lyman continuum radiation from planetary nebulae, hot white dwarfs, and early type stars.

Affiliated with

Also associated with

No associations

Rating

Optical emission line studies and the warm, ionized component of the local interstellar medium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical emission line studies and the warm, ionized component of the local interstellar medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical emission line studies and the warm, ionized component of the local interstellar medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1755796