VRI comparison stars for selected active galaxies

Details VRI comparison stars for selected active galaxies VRI comparison stars for selected active galaxies

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..147..175b&link_type=abstract

Astronomy and Astrophysics Supplement, v.147, p.175-180

Astronomy and Astrophysics

Astrophysics

10

Galaxies: Seyfert

Scientific paper

We present V (Johnson) and RI (Cousins) magnitudes of field comparison stars for 12 bright Seyfert galaxies. These stars are closer than 6 arcmin (typically 3 arcmin - 4 arcmin) to the galaxy and have V magnitudes between 10m and 6m. The sequences could be used for CCD monitoring and differential photometry of these active galaxies, aimed to better understanding the physics of their variability. Photometric errors of measured stars are in the range 0fm03 - 0fm06 . Finding charts (15arcminx15 arcmin ) are also included.

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