Gravitational lensing by isothermal spheres with finite core radii - Galaxies and dark matter
1987; IOP Publishing; Volume: 320; Linguagem: Inglês
10.1086/165564
ISSN1538-4357
AutoresG. Hinshaw, Lawrence M. Krauss,
Tópico(s)Cosmology and Gravitation Theories
Resumoview Abstract Citations (105) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Gravitational Lensing by Isothermal Spheres with Finite Core Radii: Galaxies and Dark Matter Hinshaw, Gary ; Krauss, Lawrence M. Abstract The authors calculate the gravitational lensing properties of an isothermal sphere in which the singularity at the origin is replaced by a finite core and contrast this with the usual singular case. This can significantly alter the statistics of the lensing of distant quasars by both the known distribution of intervening galaxies and also by a possible distribution of "dark" galaxies, as might be predicted in biased galaxy formation models. For example, it is found that the mean angular separation predicted to result from galactic lenses can be much larger than previously estimated. Publication: The Astrophysical Journal Pub Date: September 1987 DOI: 10.1086/165564 Bibcode: 1987ApJ...320..468H Keywords: Dark Matter; Galaxies; Gravitational Lenses; Isothermal Processes; Elliptical Galaxies; Luminosity; Quasars; Red Shift; Spiral Galaxies; Astrophysics; GRAVITATION full text sources ADS |
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