The gravitational lens as an astronomical diagnostic

Details The gravitational lens as an astronomical diagnostic The gravitational lens as an astronomical diagnostic

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...292..348s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 292, May 15, 1985, p. 348-356.

Astronomy and Astrophysics

Astronomy

21

Gravitational Lenses, Imaging Techniques, Pulsars, Radio Astronomy, Very Long Base Interferometry, Angular Distribution, Brightness Distribution, Diffuse Radiation, Isophotes, Point Sources

Scientific paper

How a point gravitational lens images a diffuse background source is examined, and it is shown that under a wide range of circumstances the image contains a 'gravity ring.' The chief criterion for producing this phenomenon is that the angular scale of brightness variation in the source be smaller than the angular radius of the cone of inversion of the image. The observation of gravity rings, which should soon become resolvable with very long baseline radio interferometry, would provide a useful astronomical diagnostic. It would give an independent (or unique) estimate of fundamental quantities such as the mass or distance of the deflector star and the distance of the source. A variety of astronomical examples, such as nebulae and pulsars, where the phenomenon may be especially useful is described.

Affiliated with

Also associated with

No associations

Rating

The gravitational lens as an astronomical diagnostic does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The gravitational lens as an astronomical diagnostic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The gravitational lens as an astronomical diagnostic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1631209