PPT-Fermi/LAT observations of Dwarf Galaxies highly constrain a Dark Matter interpretation

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. 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. This . powerpoint. will show you the basics of dark matter and dark energy . Their place in the universe . By Jordan . Ilori. . DARK MATTER. Dark matter is a type of matter hypothesized in astronomy and cosmology to account for a large part of the mass that appears to be missing from the universe. Dark matter cannot be seen directly with telescopes; evidently it neither emits nor absorbs light or other electromagnetic radiation at any significant level. Instead, the existence and properties of dark matter are inferred from its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the known universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Thus, dark matter is estimated to constitute 84.5% of the total matter in the universe and 26.8% of the total content of the universe.. Li Jiang-Tao. 1. Service d’Astrophysique, CEA, Saclay, France. 2. . Department. of . Astronomy. , . University. of Michigan, Ann Arbor, USA. Outline. 1. Introduction. 2. Diffuse X-ray . observation. Giuseppina. . Battaglia. Instituto. de . Astrofisica. de Canarias, Tenerife. Credit. : ESO/. H.H.Heyer. Credit. : ESO/L. . Calçada. Karachentsev. et al. 2014. Individual . Red . Giant Branch . stars. 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 . New discoveries and follow up observations. University of Hertfordshire. Joana Gomes. Outline. New binaries. T dwarf search and summer student. Follow up observations. White dwarf observations. L dwarfs. Let’s look back at the rotational velocity equation:. v = (M. interior. G/r). 0.5. The rotational velocity is constant at big r values.. What must we conclude?. The mass interior to the orbit is still increasing. Even after the radius r has gone beyond the last of the stars. It must be increasing in order to hold v constant.. 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. Who is This Fermi and Why Does He Ask Questions?. . . Fermi questions receive their name from Enrico Fermi (1901-1954). He was an Italian physicist known for his participation in the Los Alamos atomic bomb project (code named the “Manhattan Project”) during World War II. Fermi is best known for his contributions to nuclear physics and the development of quantum theory. In addition to his contribution to theory, he is also noted as an experimentalist.. Fermi National Accelerator Lab December 13, 2017 . How we usually think of him. Or perhaps . l. ike . t. his . How I think of him. There’s a story behind that orange line on the right of the image…... Laura . Magrini. INAF- . Osservatorio. . Astrofisico. di . Arcetri. In Our Galaxy. Open clusters (disc population): . Many (~2200 known clusters). . even more new candidates in the inner disc from infrared surveys . indistinguishability of the electrons. ,. electron wave nature. ,. the Pauli exclusion principle. .. (4.6). The function . f. (E). called . the . Fermi-Dirac distribution function. gives the probability that an available energy . How Galaxies form Stars – August 24 2016 . Robbert. Verbeke. 1. Bert . Vandenbroucke. Sven De . Rijcke. Ghent University. 1. Robbert.verbeke@ugent.be. @. Rbhfd. Λ. CDM. Standard model for cosmology.