Photometric Monitoring of 2237+0305
Abstract
Images are analyzed of a high-redshift quasar, which were taken before and after a significant brightness variation indicative of a microlensing event occured in the quasar's brightest component (A). A modeling technique is employed and is found to be effective because the magnitude estimates of the four quasar components agree with those reported by Yee (1988). The brightening of A is confirmed by the image analysis, and both the procedures and results agree with Irwin et al. (1989).
- Publication:
-
Gravitational Lensing
- Pub Date:
- 1990
- DOI:
- 10.1007/BFb0009257
- Bibcode:
- 1990LNP...360..206C
- Keywords:
-
- Astronomical Photometry;
- Gravitational Lenses;
- Quasars;
- Spiral Galaxies;
- Galactic Nuclei;
- Light Curve;
- Optical Thickness;
- Red Shift;
- Astronomy