Chitah: Strong-gravitational-lens hunter in imaging surveys

Journal Article · Fri Jul 10 04:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/807/2/138· OSTI ID:22879457

Chan, James H. H.; Chiueh, Tzihong ^[1]; Suyu, Sherry H. ^[2]; More, Anupreeta ^[3]; Marshall, Philip J. ^[4]; Coupon, Jean ^[5]; Oguri, Masamune ^[6]; Price, Paul ^[7]

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1. Department of Physics, National Taiwan University, 10617 Taipei, Taiwan (China)
2. Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan (China)
3. Kavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583 (Japan)
4. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94035 (United States)
5. Astronomical Observatory of the University of Geneva, ch. d’Ecogia 16, 1290 Versoix (Switzerland)
6. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8583 (Japan)
7. Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States)

Strong gravitationally lensed quasars provide powerful means to study galaxy evolution and cosmology. Current and upcoming imaging surveys will contain thousands of new lensed quasars, augmenting the existing sample by at least two orders of magnitude. To find such lens systems, we built a robot, Chitah, that hunts for lensed quasars by modeling the configuration of the multiple quasar images.

• OSTI ID: 22879457
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 807; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
CONFIGURATION
COSMOLOGY
CURRENTS
DATA ANALYSIS
EVOLUTION
GALAXIES
GRAVITATIONAL LENSES
IMAGES
QUASARS
ROBOTS
SIMULATION