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Mid-Infrared Imaging of the Einstein Cross QSO

Published online by Cambridge University Press:  05 March 2013

Eric Agol ,
Stuart Wyithe ,
Barbara Jones  and
Chris Fluke
Eric Agol
Affiliation:
Caltech, MS 130-33, Pasadena, CA, 91125, USA; agol@tapir.caltech.edu
Stuart Wyithe
Affiliation:
School of Physics, University of Melbourne, Parkville, VIC 3052, Australia; swyithe@physics.unimelb.edu.au Princeton University Observatory, Peyton Hall, Princeton, NJ 08544
Barbara Jones
Affiliation:
Centre for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, CA 92093, USA; b2jones@ucsd.edu
Chris Fluke
Affiliation:
Center for Astrophysics and Supercomputing, Mail number 31, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia; cfluke@swin.edu.au
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Abstract

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Observations 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:generalinfrared: general
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 18 , Issue 2 , 2001 , pp. 166 - 168
Copyright
Copyright © Astronomical Society of Australia 2001

References

Agol, E., Jones, B., & Blaes, O. M. 2000, ApJ, 545, 647 CrossRefGoogle Scholar
Barvainis, R. 1992, ApJ, 400, 502 CrossRefGoogle Scholar
Edelson, R., & Malkan, M. 1986, ApJ, 308, 59 CrossRefGoogle Scholar
Nelson, B. O. 1996, ApJ, 465, L87 CrossRefGoogle Scholar
Neugebauer, G., Green, R. F., Matthews, K., Schmidt, M., Soifer, B. T., & Bennett, J. 1987, ApJS, 63, 615 CrossRefGoogle Scholar
Neugebauer, G., & Matthews, K. 1999, AJ, 118, 35 CrossRefGoogle Scholar
Sanders, D. B., Phinney, E. S., Neugebauer, G., Soifer, B. T., & Matthews, K. 1989, ApJ, 347, 29 CrossRefGoogle Scholar
Schmidt, R., Webster, R. L., & Lewis, G. F. 1998, MNRAS, 295, 488 (SWL)CrossRefGoogle Scholar
Wyithe, S. W., Agol, E., & Fluke, C. J. 2001, MNRAS, submittedGoogle Scholar
Wills, B. J. 1987, in Observational Cosmology, Proceedings of the IAU Symposium 124, Beijing, People's Republic of China, August 25–30, 1986, ed. A. Hewitt, G. Burbidge, & L.-Z. Fang Reidel Publishing Co., Dordrecht, D., p. 665 Google Scholar
Wozniak, P. R., Udalski, A., Szymanski, M., Kubiak, M., Pietrzynski, G., Soszynski, I., & Zebrun, K. 2000, ApJ, 540, L65 CrossRefGoogle Scholar