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A small source in Q2237+0305 ?
J. S. B. Wyithe, R. L. Webster, E. L. Turner
Microlensing in Q2237+0305 between 1985 and 1995 (eg. Irwin et al. 1989; Corrigan et al. 1991; Ostensen et al. 1996) has been interpreted in two different ways; as microlensing by…
The rate of caustic crossing microlensing events for Q2237+0305
J. S. B. Wyithe, R. L. Webster, E. L. Turner
Spectrophotometric observation of the gravitationally microlensed quasar Q2237+0305 during a High Magnification Event (HME) is potentially a very powerful tool for probing the stru…
A gravitational microlensing determination of continuum source size in Q2237+0305
J. S. B. Wyithe, R. L. Webster, E. L. Turner +1
Following the detection of a gravitational microlensing high magnification event (HME) in Q2237+0305A attempts have been made to place limits on the dimensions of the quasar contin…
Limits on the microlens mass function of Q2237+0305
J. S. B. Wyithe, R. L. Webster, E. L. Turner
Gravitational microlensing at cosmological distances is potentially a powerful tool for probing the mass functions of stars and compact objects in other galaxies. In the case of mu…
Application of the Contouring Method to Extended Microlensed Sources
J. S. B. Wyithe, R. L. Webster
The method devised by Lewis et al. (1993) for calculating the light curve of a microlensed point source is expanded to two dimensions to enable the calculation of light curves of e…
A measurement of the transverse velocity of Q2237+0305
J. S. B. Wyithe, R. L. Webster, E. L. Turner
Determination of microlensing parameters in the gravitationally lensed quasar Q2237+0305 from the statistics of high magnification events will require monitoring for more than 100…