Flux variations of QSO 0957+561 A, B and image splitting by stars near the light path

Details Flux variations of QSO 0957+561 A, B and image splitting by stars near the light path Flux variations of QSO 0957+561 A, B and image splitting by stars near the light path

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.282..561c&link_type=abstract

Nature, vol. 282, Dec. 6, 1979, p. 561-564.

Physics

301

Binary Stars, Gravitational Lenses, Optical Paths, Quasars, Radiant Flux Density, Point Sources, Star Distribution

Scientific paper

If the double QSO 0957+561 A, B is the result of gravitational lens
actions by a massive galaxy, stars in its outer parts and close to the
light paths may cause significant flux changes in one year. One star can
split a QSO image into two to four images with angular separations of
approximately 0.00001 arc sec.

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