PPT-Probing Dark Dwarf Galaxies with Gravitational Lensing

Kaiki Taro Inoue KINDAI U Seminar Osaka U 22 Feb 2017 Outline Missing Satellite Problem Gravitational Lensing Substructure vs Lineofsight Halos ALMA Observations SDP81 MG04140534. Adam Leroy. National Radio Astronomy Observatory. HERITAGE (. Meixner. et al.). Dust in Dwarf Galaxies. Adam Leroy. National Radio Astronomy Observatory. HERITAGE (. Meixner. et al.). SAGE (. Meixner. Rich Dwarf Galaxies. . Sambit. . Roychowdhury. (NCRA), . Jayaram. . N. . Chengalur. . (. NCRA. ), . . Igor . D. . Karachentsev. (SAO. ), Margarita . Sharina. (SAO). Ayesha Begum . Boot Camp. Robert Nemiroff. Michigan Tech . Abstract. What is gravitational lensing, what has it told us about the universe, and what more can it tell us about the universe? Lenses such as black holes, stars, galaxies, clusters of galaxies, and the universe as a whole will be covered. Concepts such as Einstein rings, photon spheres, image pair creation events, and shear will be defined and briefly discussed. The intersection of gravitational lensing with current research frontiers will be reviewed including how microlensing is being used to search for extra-solar planets, how radio telescopes are being used to probe galaxy-center black holes, and how weak lensing is being used to probe galaxy evolution in the early universe. Possible lensing signals in continuing and upcoming missions such as Planck, DES, LSST, Euclid, and WFIRST will be reviewed. Relevant parts of the lecturer's own research will also be briefly mentioned. . and. Quasars . “A man should look for what is, and not what he thinks should be.” – Albert Einstein . Arvind. Haran and David Johnston. What is Gravitational Lensing?. Let’s take a step back to the Einstein days…. D.S. . Hajdukovic. GBAR Collaboration Meeting. 18. th. April 2012. Our best physics . The Standard Model of Particles and Fields. +. . General Relativity . is . considered. as insufficient to explain the observed phenomena in Astrophysics and Cosmology.. Examples of Lens Systems. about 1 arcminute. about 1 arcsecond. Galaxy Clusters. Galaxies. More examples. Clusters of galaxies as lenses. T. Johnson . (U Michigan). Many examples. are known, but. strong lensing. Dwarf Galaxies in . Fornax. . Shed . Light on a Cosmological Mystery. National Science Foundation • Division of Astronomical Sciences . Prepared by the . Association of Universities for Research in Astronomy . D.S. . Hajdukovic. GBAR Collaboration Meeting. 18. th. April 2012. Our best physics . The Standard Model of Particles and Fields. +. . General Relativity . is . considered. as insufficient to explain the observed phenomena in Astrophysics and Cosmology.. DARK MATTER &DARK ENERGY. We know about only normal matter which is only 5% of the composition of universe and the rest is . DARK MATTER & DARK ENERGY. DARK MATTER. Dr. Simona . Murgia. (UC, Irvine). Dr. Will Dawson (Lawrence Livermore National Laboratory). Carolyn Slivinski (STScI). Facilitator: Dr. Emma Marcucci (STScI). Science Briefing. October . 5. , 2017. John . Moffat. Perimeter Institute. Miami 2015 Conference. Fort Lauderdale, December 16, 2015. 2015-12-21. 1. 2. 2015-12-21. 3. https://angel.co/mog. 2015-12-21. Introduction. Observations of the dynamics of galaxies as well as the dynamics. DPF 2015 – University of Michigan, Ann Arbor. . Alejandro Lopez . in collaboration with: C. Savage, D. Spolyar and D. Adams. Outline:. Brief Introduction. Goal. Technique. Results. Conclusion. Future Work. Gravity . and Light. Black Holes. What is Dark Matter?. Recap. Midterm . Friday . 11/. 1: summary review sheet posted. Canvas homework : . due Wednesday. Lab this week. Using . gravity to measure . masses.