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Search and Photographic Photometry of Ultraviolet Excess Objects in the Region of the 5C1 Radio Survey
Author(s) -
Notni P.
Publication year - 1980
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2103010203
Subject(s) - photometry (optics) , ultraviolet , physics , astrophysics , galaxy , astronomy , optics , stars
A sample of ultraviolet excess objects in a 12.56 square degree field near α = 9 h 40 m , δ = +50° (5C1‐radio survey) is presented. In addition to starlike or and nearly starlike objects a sample of more diffuse ones is listed, presumably containing many Markarjan‐type galaxies. UBV ‐photometry and first spectroscopic results are communicated; the number magnitude relation and the projected number‐density of the objects are shortly discussed.