BVRI CCD-Photometry of Comparison Stars in the Neighborhoods of Galaxies with Active Nuclei. II

Results are presented from CCD BVRI-observations of 145 comparison stars in the neighborhoods of 14 Seyfert galaxies, 3 quasars, and 5 BL Lac objects with right ascensions of 12 to 24 hours. The magnitudes of the observed stars ranged from V=11 to V=17. The typical photometric error for stars bright...

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Bibliographic Details
Published inAstrophysics Vol. 48; no. 3; pp. 304 - 320
Main Authors Doroshenko, V T, Sergeev, S G, Merkulova, N I, Sergeeva, E A, Golubinsky, Yu V, Pronik, V I, Okhmat, N N
Format Journal Article
LanguageEnglish
Published New York Springer 01.07.2005
Springer Nature B.V
Subjects
Astronomical photometry
Astrophysics
Measurement
Methods
Observations
Properties
Quasars
Seyfert galaxies
Stars & galaxies
Ukraine
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Summary:Results are presented from CCD BVRI-observations of 145 comparison stars in the neighborhoods of 14 Seyfert galaxies, 3 quasars, and 5 BL Lac objects with right ascensions of 12 to 24 hours. The magnitudes of the observed stars ranged from V=11 to V=17. The typical photometric error for stars brighter V=14 is 0m.01. The B, V, Rc, and Ic magnitudes of most of these stars were not known previously. 14' x 14' finding charts are provided. These results can be used for differential photometry of the nuclei of active galaxies in the B, V, Rc, and Ic bands.
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ISSN:0571-7256
1573-8191
DOI:10.1007/s10511-005-0029-0