Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-28T08:47:54.175Z Has data issue: false hasContentIssue false
  • English
  • Français

Gravitational Telescopes

Published online by Cambridge University Press:  25 May 2016

R. D. Blandford  and
D. W. Hogg
R. D. Blandford
Affiliation:
Caltech, Pasadena, CA 91125, USA
D. W. Hogg
Affiliation:
Caltech, Pasadena, CA 91125, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Some ways in which gravitational lenses can act as crude telescopes are reviewed. Magnification limits associated with finite source size, corrugation of the gravitational potential and finite wavelength are specified. It should be possible to obtain rotation curves for a small sample of ultra-faint galaxies imaged as giant arcs. There is an appreciable chance of eventually observing a radio jet component cross a caustic. The successful observation of microlensing in 2237+031 suggests that the continuum emission from this source at blue wavelengths is at least partly non-thermal. The maximum possible magnification observable, granted existing constraints is argued to be from γ-ray pulsars crossing caustic sheets formed by galaxies or a hypothetical population of intergalactic massive objects.

Type
Chapter 10: Emerging Applications
Information
Symposium - International Astronomical Union , Volume 173: Astrophysical Applications of Gravitational Lensing , 1996 , pp. 355 - 364
Copyright
Copyright © Kluwer 1996 

References

Antonucci, R., 1993, ARAA, 31, 473 Google Scholar
Blandford, R. D. & Kovner, I., 1988, Phys Rev A, 38, 4028 Google Scholar
Connor, S., Léhar, J. & Burke, B., 1992, ApJ, 387, L61 Google Scholar
Gould, A., 1992, ApJ, 386, L5 Google Scholar
Harms, R. J. et al., 1994, ApJ, 435, L35 Google Scholar
Kayser, R. et al. 1990, ApJ, 364, 15 Google Scholar
Kneib, J.-P. et al., 1995, ApJ, in press Google Scholar
Kovner, I. & Paczyński, B., 1988, ApJ, 335, L9 Google Scholar
Levinson, A. & Blandford, R. D., 1995, MNRAS, in press Google Scholar
Levy, G. S. et al., 1989, ApJ, 336, 1098 CrossRefGoogle Scholar
Miralda-Escudé, J., 1991, ApJ, 379, 94 Google Scholar
Miyoshi, M. et al., 1995, Nature, 373, 127 Google Scholar
Netzer, H., 1991, in Active Galactic Nuclei, eds. Blandford, R. D. Netzer, H. & Woltjer, L., (Berlin: Springer-Verlag)Google Scholar
Pello, R. et al., 1991, ApJ, 366, 405 Google Scholar
Peterson, B. M. et al., 1995, ApJ, 425, 622 Google Scholar
Rauch, K. P., 1993, in Gravitational Lenses in the Universe, eds. Surdej, J. et al. (Liège: Université de Liège) 385 Google Scholar
Rauch, K. P. & Blandford, R. D., 1994, MNRAS, 421, 46 Google Scholar
Rickett, B. J., et al., 1995, A&A, 293, 479 Google Scholar
Schneider, P., Ehlers, J. & Falco, E. E., 1992, Gravitational Lensing (Berlin: Springer-Verlag)Google Scholar
Smail, I. R., Hogg, D. W., Yan, L. & Cohen, J. G., 1995, ApJ, in press Google Scholar
Tanaka, Y. et al., 1995, Nature, 375, 659 Google Scholar
Tyson, J. A., 1988, AJ, 96, 1 Google Scholar
Ulmer, A. & Goodman, J., 1995, ApJ, 442, 67 Google Scholar
Wambsganss, J., Paczyński, B., 1994, AJ, 108, 1156 Google Scholar
Weymann, R. J., Morris, S. L., Foltz, C. B. & Hewett, P. C., 1991, ApJ, 373, 23 Google Scholar
Zensus, J. A. & Pearson, T. J., 1990, in Parsec Scale Radio Jets (Cambridge: Cambridge University Press)Google Scholar