Data on the UBV system are presented for 14 quasistellar
radio sources, 8 N galaxies,39 radio galaxies and 19 radioquiet
galaxies south of +20° declination. Their positions in the two -
color diagram show that the integrated colors of the radio
galaxies are similar to those of the radioquiet galaxies of the
same morphological type. In an absolute radio magnitude - radio
index diagram a linear relation exists between M158 and ím158 Boo
for radio galaxies of all classes. The QSO:s, however, do not
follow this relation, and possible explanations are considered.
The brightness and color distributions in the larger galaxies
are described in detail. Our results are combined with other data
for a discussion of the compositions of these systems. It is
suggested that a fairly high amount of reddening occurs in the
central regions of several galaxies, as for instance, in NGC 1068
and NGC 1316.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/623842 |
| Date | 12 1900 |
| Creators | Westerlund, B. E., Wall, J. V. |
| Contributors | Univ Arizona, Steward Observ |
| Publisher | Steward Observatory, The University of Arizona (Tucson, Arizona) |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Article |
| Source | Steward Observatory Parker Library SO QB 4 .S752 ARCH |
| Rights | Copyright © All Rights Reserved. |
| Relation | Preprints of the Steward Observatory #16, http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1969AJ.....74..335W&db_key=AST&data_type=HTML&format=&high=3ed65e9cd003926 |
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