Special Notice #262: Long-term monitoring of AGN targets extended

November 2, 2011:  The observing campaign described in AAVSO Alert Notice 443 (M. Templeton) has been extended through the end of November 2011. One of the original targets, NGC 6814, has been removed from the target list for the remainder of the campaign.

Briefly, Dr. Misty Bentz of Georgia State University requests observations of three active galactic nuclei (AGN) for a study of variability in these sources by the STARE Collaboration. She requests BVRcIc filtered photometry of NGC 7213, NGC 7469, and NGC 1566 through November 2011 in support of a spectroscopic monitoring campaign to run concurrently using the SMARTS 1.5-meter telescope at CTIO in Chile.  

Although the nuclei are bright, the background galaxian light will be significant, and observers are asked to follow the observing protocols outlined in Alert Notice 443. Full details regarding the targets, finder charts, and observer support are also found in Alert Notice 443.

Galaxy      RA(J2000)      Dec(J2000)    V(mag)   Ap.   Sky ann.
NGC 7213    22 09 16.24    -47 10 00.4    15.0    4"    120"-135"
NGC 7469    23 03 15.75    +08 52 25.8    14.5    4"    120"-135"
NGC 1566    04 20 00.40    -54 56 16.0    14.5    5"    120"-135"

Please report all observations to the AAVSO International Database as NGC 7213, NGC 7469, or NGC 1566, respectively.

Dr. Bentz reports that she is very happy with the amount of data AAVSO observers have been contributing on these targets. Please continue to observe them as best you can through November to provide Dr. Bentz with more good data!

This AAVSO Special Notice was compiled by Elizabeth O. Waagen.



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