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A deep redshift survey of field galaxies. comments on the reality of the butcher-oemler effect
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Koo, David C. Kron, Richard G. |
| Copyright Year | 1987 |
| Description | A spectroscopic survey of over 400 field galaxies has been completed in three fields for which we have deep UBVI photographic photometry. The galaxies typically range from B=20 to 22 and possess redshifts z from 0.1 to 0.5 that are often quite spiky in distribution. Little, if any, luminosity evolution is observed up to redshifts z approx 0.5. By such redshifts, however, an unexpectedly large fraction of luminous galaxies has very blue intrinsic colors that suggest extensive star formation; in contrast, the reddest galaxies still have colors that match those of present-day ellipticals. |
| File Size | 623609 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880021174 |
| Archival Resource Key | ark:/13960/t9770ch61 |
| Language | English |
| Publisher Date | 1987-09-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Surveys Spectroscopy Red Shift Star Formation Elliptical Galaxies Galaxies Galactic Evolution Color Ubv Spectra Luminosity Photometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
