PPT-Microlensing

in Globular Clusters Margarita Safonova Ancient Greeks knew that light travels in a straight line Or you wouldnt be able to cross the road Gravitational Lensing Astronomical Mirages. only 2 50-day observing windows per year. The bulge must be observed whenever it can be. Significant “edge effect” penalties for regular interruptions. 0.5 year . SNe. program. Must sample high-. Microlensing. Planetary Systems.. Scott Gaudi. Matthew Penny. (OSU). WFIRST . Microlensing. Survey.. Microlensing. Survey Dataset. . Properties.. . ~. 3. sq. deg.. ~432 days.. ~80% of the area will have 2 million seconds of integration time.. DRAFT. 1. Multiple surveys with different requirements to implement the various science programs. High Latitude Survey (HLS): ~2,400 deg. 2. imaging and spectroscopic sky survey for BAO/RSD & WL (dark energy science), also used for archival studies by guest investigators. David . Bennett. University of Notre Dame. WFIRST. Unique Science from Space-based Survey. Exoplanet Survey Question #1: How do planetary systems form and evolve?. complementary to . Kepler. Exoplanet sensitivity down to sub-Earth masses at 0.5 AU - ∞. Figure of Merit . David . Bennett. University of Notre Dame. WFIRST. WFIRST Microlensing Figure of Merit. Primary FOM1 - # of planets detected for a particular mass and separation range. Cannot be calculated analytically – must be simulated. . Microlens. Detection of a Massive Remnant in a Well-separated Binary . . Yossi . Shvartzvald. . Jet Propulsion Laboratory, . California Institute of Technology. . Yossi Shvartzvald NPP Fellow @ JPL. . Microlensing . Geometry.  .  .  . Microlensing . Geometry.  .  .  .  .  . Microlensing . Geometry.  .  .  .  .  . Microlensing . Geometry. Y. K. Jung. OGLE, MOA, . KMTNet. collaborations. What We did. Analyze two microlensing events. OGLE-2016-BLG-0733. OGLE-2016-BLG-1003. OGLE-2016-BLG-0733. Deviate . from the symmetric form of an event produced by a single . The Ohio State University. (with the WFIRST SDTs and on behalf of the WFIRST . μSIT. ). Completing the Census of . Exoplanetary. Systems . with WFIRST.. 21. st. International . Microlnesing. Conference. Daisuke Suzuki. ISAS / JAXA. the MOA collaboration. August . 8. , 2017 . 2017 Sagan Summer Workshop. Microlensing in the Era of WFIRST . a. snow. . = 2.7 (. M. /. M. Sun. ) AU. http://. exoplanet.eu. C249: Planetary Astrophysics. September 6, 2017. What does a microlensing event look like?. Gaudi 2012. What are caustics?. Gaudi 2012. s = instantaneous projected separation of star & planet (in Einstein radii). 6. Extragalactic Microlensing. Wambsganss. . 2001. /sharp caustic crossing. /2,3-pt lens. Local Group vs. Extragalactic Microlensing. =k. Local Group Microlensing – . very very low optical depth. OGLE . microlenses. with . astrometric. . microlensing. Noé. Kains . (. STScI. ). with . Kailash. . Sahu. , . Jay Anderson, . Andrzej. . Udalski. , . Annalisa . Calamida. , . Stefano . Casertano. Jennifer Yee. &. Etienne . Bachelet. Big Picture. Using simulated WFIRST light curves, explore the kinds of . microlensing. planets WFIRST will find.. Goals. Identify planetary perturbations in light curves.