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NonMicrolensing Science from WFIRST Microlensing Data Andy PDF
Preview NonMicrolensing Science from WFIRST Microlensing Data Andy
NonMicrolensing Science from WFIRST Microlensing Data Andy Gould (Ohio State) WFIRST Seeing Better In Space (also weather) Bennett & Rhie 2002, ApJ, 574, 985 WFIRST Microlensing Field WFIRST “Microlensing” Survey Characteristics 40,000 images (52 sec) ● 2.8 sq.deg. ● 6 continuous 72day campaigns (at quadrature) ● 100 images per day ● SNR = 10^{0.4(HzeroH)} Hzero = 26.1 ● Gould 2014 JKAS, (almost) in press WFIRST vs. GAIA WFIRST vs GAIA Parallax Precision NonMicrolensing WFIRST Science: Ultraprecise Parallaxes H<14.0; < 0.3as; 1,000,000 stars ● H<19.6; < 3.7 as; 40,000,000 stars ● H<21.6; ) < 10as; 120,000,000 stars ● Gould, Huber, Penny, Stello, 2014 JKAS, sub. WFIRST Astrometric Information Flow