Open AccessOn gravitomagnetic time‐delay by extended lenses
Author(s) -
Sereno M.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.08709.x
Subject(s) - physics , gravitational lens , lens (geology) , gravitation , strong gravitational lensing , spin (aerodynamics) , classical mechanics , optics , astrophysics , galaxy , redshift , thermodynamics
Gravitational lensing by rotating extended deflectors is discussed. The lens is modelled as a singular isothermal sphere. Because of spin, corrections on image positions, caustics and critical curves can be significant. Gravitomagnetic time‐delays of ∼0.2 d between different images of background sources can occur.