The local interstellar medium toward the center of Loop I

Details The local interstellar medium toward the center of Loop I The local interstellar medium toward the center of Loop I

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..494c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 10, 1991, p. 494-504.

Other

40

Interstellar Gas, Ultraviolet Spectra, Abundance, Ionized Gases, Milky Way Galaxy, Radial Velocity, Visible Spectrum

Scientific paper

The present study of the local insterstellar medium toward the center of Loop I analyzes optical and UV spectra of nearby stars within the l = 310-330 deg, b = 15-25 deg area. The analysis of the UV spectra reveals a sudden gas-column density increase as a function of distance from 10 to the 18th to 10 to the 20th/sq cm, suggesting the presence of a wall of gas 40 + or - 25 pc from the sun; this constrains the distance to the boundary of the soft X-ray emitting cavity around the sun, or 'Local Bubble', in the direction toward the Loop I center. At greater distances, the approximately constant N(H I), in conjunction with the lack of interstellar components in the optical spectra, are suggestive of the presence of another low-density gas column which can be identified with the Loop I Bubble.

Affiliated with

Also associated with

No associations

Rating

The local interstellar medium toward the center of Loop I 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 The local interstellar medium toward the center of Loop I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The local interstellar medium toward the center of Loop I will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1036536