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Nuclear infrared emission and the colors of iras galaxies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hill, Gary J. |
| Copyright Year | 1987 |
| Description | J, H, K, L', and N observations of galaxies detected at 12 microns by IRAS are combined with IRAS flux densities to investigate the relationship between the infrared sizes and colors of galaxian infrared sources. It is found that typical IRAS galaxies have 10 micron radii of 0.5 to 2.0 kpc, while active galaxies and galaxies with higher 25 to 60 micron color temperatures are smaller. One unusal object, 23060+0505, is at high redshift and has an infrared luminosity of 1.5 x 10 to the 12th power L sub 0. Its 1 to 100 micron energy distribution resembles that of a Seyfert 1 galaxy, but it shows very little sign of broad line emission in the visible. Its properties suggest that it may be a prototype for a class of highly obscured active galaxy. |
| File Size | 427136 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870014923 |
| Archival Resource Key | ark:/13960/t73v4g45s |
| Language | English |
| Publisher Date | 1987-05-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Red Shift Spectral Energy Distribution Infrared Astronomy Satellite Stellar Luminosity Galactic Nuclei Active Galaxies Stellar Color Astronomical Photometry Stellar Temperature Star Formation Flux Density Irregular Galaxies Spectrum Analysis Infrared Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
