A Simple Method to Find All Lensed Quasars | Zendy

C. S. Kochanek | Zendy; B. J. Mochejska | Zendy; N. D. Morgan | Zendy; K. Z. Stanek | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A Simple Method to Find All Lensed Quasars

Author(s) -

C. S. Kochanek,

B. J. Mochejska,

N. D. Morgan,

K. Z. Stanek

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/500559

Subject(s) - quasar , astrophysics , physics , variable (mathematics) , population , variable star , astronomy , galaxy , stars , mathematics , mathematical analysis , demography , sociology

We demonstrate that gravitationally lensed quasars are easily recognizedusing image subtraction methods as time variable sources that are spatiallyextended. For Galactic latitudes |b|>20 deg, lensed quasars dominate thepopulation of spatially extended variable sources, although there is somecontamination from variable star pairs, variable star-quasar pairs and binaryquasars that can be easily controlled using other information in the surveysuch as the object light curves and colors. This will allow planned large-scalesynoptic surveys to find lensed quasars almost down to their detection limitswithout the need for extensive follow-up observations.Comment: 11 pages, 4 figures, submitted to ApJ

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research