Mid-Infrared Imaging of the Einstein Cross QSO
Publications of the Astronomical Society of Australia
18(2) 166 - 168
Published: 2001
Abstract
Received 2001 January 21, accepted 2001 March 7Observations of the Einstein Cross QSO reveal that the mid-infrared region is unaffected by microlensing. Thus, the infrared emission region must be extended on a scale >1017 cm, ruling out synchrotron models, but consistent with dust emission models. Other constraints rule out starburst models. The flux ratios greatly constrain the lens model.
Keywords: quasars: individual (Q2237+0305)— gravitational lensing— radiation mechanisms: general — infrared: general
https://doi.org/10.1071/AS01015
© ASA 2001
