UBVr SEQUENCES AND OBSERVATIONS OF OPTICALLY IDENTIFIED RADIO SOURCES

UBVr SEQUENCES AND OBSERVATIONS OF OPTICALLY IDENTIFIED RADIO SOURCES

Photoelectric observations of eight optically identified radio sources and comparison stars in nearby fields are presented. Six of these objects have continuous spectra and may belong to the BL Lac class of variables. The reported observations indicate possible short-term, smallamplitude variations...

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Veröffentlicht in:Publ. Astron. Soc. Pac., v. 87, no. 515, pp. 123-130 v. 87, no. 515, pp. 123-130, 1975-02, Vol.87 (515), p.123-130
Hauptverfasser: CRAINE, ERIC R., JOHNSON, KEITH, TAPIA, S.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomical magnitude
Astronomical objects
BL Lacertae objects
COSMIC RADIO SOURCES- SPECTROPHOTOMETRY
Finding charts
Histograms
N56300 -Physics (Astrophysics & Cosmology)-Quasi-stellar, Radio & X-Ray Sources
Observational astronomy
Optical observation
Radio sources
Radio stars
Stars
VARIATIONS
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Beschreibung
Zusammenfassung:Photoelectric observations of eight optically identified radio sources and comparison stars in nearby fields are presented. Six of these objects have continuous spectra and may belong to the BL Lac class of variables. The reported observations indicate possible short-term, smallamplitude variations in some of the optical counterparts of the radio sources.
ISSN:0004-6280
1538-3873
DOI:10.1086/129733