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The azimuthal and radial distributions of hi and h2 in ngc 6946
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Young, Judith S. Tacconi-Garman, Linda J. |
| Copyright Year | 1987 |
| Description | A study was completed of the atomic and molecular components of the ISM in NGC 6946. The distribution of molecular clouds was determined from a fully sampled CO map of the inner disk using the 14-meter telescope of the FCRAO. The distribution of atomic gas was derived from VLA observations at 40" resolution in the D configuration. When comparing the global CO and HI properties with other components of the galaxy, it was found that the azimuthally averaged radial distributions of CO, H-alpha, radio continuum and blue light all exhibit similar roughly exponential falloffs, while the azimuthally averaged HI surface densities vary by only a factor of 2 out to R = 16 kpc. This indicates that while the H-alpha/CO ratio is approximately constant with radius, the CO/HI ratio decreases by a factor of 30 from the center of the galaxy to R = 10 kpc. |
| File Size | 300684 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870014902 |
| Archival Resource Key | ark:/13960/t1ng9j71f |
| Language | English |
| Publisher Date | 1987-05-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Stellar Spectra Azimuth Radial Distribution Star Formation Monatomic Gases Molecular Clouds Disk Galaxies H Alpha Line Carbon Monoxide Stellar Luminosity Interstellar Matter Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
