BVRI CCD-Photometry of Comparison Stars in the Neighborhoods of Galaxies with Active Nuclei. Iстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Results are presented from CCD BVRI observations of comparison stars in the neighborhoods of 22 galaxies with active nuclei having right ascensions ranging from 0 to 12 hours, of which 19 are Seyfert galaxies. The observed stars have magnitudes ranging from V=11 to V=17. For stars brighter than V=14 the typical photometic error is 0.01m. The B, V, Rc, and Ic magnitudes of most of these stars were not known previously. 14′×14′ finding charts are included. These results can be used for differential photometry of the AGNs in the B, V, Rc, and Ic bands.