Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II

Details Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241..132l&link_type=abstract

Astrophysical Journal, Part 1, vol. 241, Oct. 1, 1980, p. 132-146. Research supported by the University of California and NASA

Physics

177

Fine Structure, Galactic Nuclei, Infrared Spectra, Interstellar Gas, Ionized Gases, Mass Distribution, Milky Way Galaxy, Abundance, Cloud Physics, Gas Ionization, Line Spectra

Scientific paper

Observations of infrared fine-structure line emission from compact clouds of ionized gas within Sgr A West are presented. These clouds have diameters of 0.1-0.5 pc, internal velocity dispersions of 100 km/s (FWHM), and line center velocities up to + or - 260 km/s. Their masses are not accurately determined but are probably between 0.1 and 10 solar masses. They are ionized by radiation like that of stars of effective temperature not greater than 35,000 K. The clouds are shown to have lifetimes of 10,000 yr and so must be generated and dissipated at a rate of a few per 1000 yr. From analysis of the distribution of the velocities of the clouds, a most probable mass distribution is derived which includes a central pointlike mass of several x 10 to the 6th solar masses in addition to several x 10 to the 6th solar masses of stars within 1 pc of the center.

Affiliated with

Also associated with

No associations

Rating

Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II 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 Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of the motion and distribution of the ionized gas in the central parsec of the Galaxy. II will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-947391