The Hamburg Quasar Monitoring Program (HQM) at Calar Alto. II. Lightcurves of weakly variable objects

Details The Hamburg Quasar Monitoring Program (HQM) at Calar Alto. II. Lightcurves of weakly variable objects The Hamburg Quasar Monitoring Program (HQM) at Calar Alto. II. Lightcurves of weakly variable objects

1994-03-23

arxiv.org/abs/astro-ph/9403049v1

Astronomy and Astrophysics

Astrophysics

Astron. & Astrophys. (Supplements), in press, 7 pages, Latex laa-Style (A&A 1990), including figures, HH-HQM-JS-94-2

Scientific paper

HQM is an optical broad-band photometric monitoring program carried out since Sept.~1988. We use a CCD camera equipped to the MPIA 1.2$\,$m telescope. Fully automatic photometric reduction relative to stars in the frames is done within a few minutes after each exposure, thus interesting brightness changes can be followed in detail. The typical photometric error is 1--2\,\% for a 17.5\,mag quasar. We here present lightcurves already evaluated but not shown in Paper I. We also discuss existing literature data.

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