PPT-Circum-galactic Medium Around Local Spiral Galaxies – A N

Li JiangTao 1 Service dAstrophysique CEA Saclay France 2 Department of Astronomy University of Michigan Ann Arbor USA Outline 1 Introduction 2 Diffuse Xray observation. a prospect from galaxy evolution. Cosmic Microwave Background Radiation and Its Foreground Interstellar Components, Tokyo. , . 17. th. February, 2010. Tsutomu T. TAKEUCHI. Institute for Advanced Research, Nagoya University, Japan. iPTF. Eric . Bellm. , . Frank . Masci. , Gandalf Saxe, . Sumin. Tang . [Tom Prince]. 27 Aug 2014. Galactic plane data is new. BEFORE. 2013 July 2nd. Galactic plane data is new. 2014 August 20th. AFTER. 年. 6. 月　. Cairns, . Austrilia. 8th Circum Pan-Pacific Spin Symposium. 8. th. Circum-Pan-Pacific Symposium on High Energy Spin Physics. Higher Twist Contributions. to the . Azimuthal. Asymmetries . Ms. Cordaro . SMHS . Earth Science. Review/Warm up – Write this in your journal. (Do not fill in the blanks yet!!). A light year = How far _ _ _ _ _ travels in _ _ _ year.. The electromagnetic spectrum is made up of different size _ _ _ _ _ that produce _ _ _ _ _ _ in the form of radiation.. . Why Spiral Arms?. Why not just an undisturbed uniform disk?. Well, remember that . the innermost parts rotate faster than those farther out.. This suggests . one . obvious possibility: some linear structure forms, then . Spiral Structure. . The Astronomical Context. By the 1920’s, we knew that the once-mysterious spiral nebulae were flattened galaxies. . Our Milky . Way is . also. flattened. . Two obvious . questions arose:. and Earth. Which phase of the Moon would. be seen by people on Earth?. Earth. Moon. Sun. New Moon. MYP Unit Question. : What’s out there?. Area of Interaction. : Human Ingenuity. Learner profile:. Galaxies are . not. . alike. For every general rule I give, one can find exceptions. Classifying galaxies is difficult. They look different in different wavelengths. If the galaxy is moving, you have to correct for red-shift. in the Universe?. What is the solar system?. The solar system consists of:. The sun (which is the name of our star). Planets . Asteroids . Comets . Space rocks . Measurement in Astronomy. Scientists find it hard to work with the measurements we use on earth, like kilometers and miles, because the distances are so great it is hard for us to comprehend such enormous numbers. . Chapter 2. Stars. Section 1 Vocabulary. Spectrum. Apparent Magnitude. Absolute Magnitude. Light-Year. Parallax. Color of Stars. Red and Yellow. Cool. Blue . Warm. Blue flame hotter than yellow flame. The Hubble Deep Field. 10 day exposure –field located in the Big Dipper. Edwin Hubble. Edwin . Hubble. Hubble’s Galaxy Classification . Spiral Galaxies. galaxies like the Milky Way with arcing structures lying in a plane and emanating from the nuclear bulge. Here’s the Story We’ll Unfold for You…. Hubble’s galaxy classifications: Spirals, . ellipticals. , irregulars. . Structural parts of galaxies: disk, halo, nucleus, bulge. Spiral arms – tracers of star formation. 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 . The Universe. The big bang theory. Happened approximately 13.5 billion years ago. The Big Bang was caused by the density of the compressed galaxies. It was in a very high density state, then it expanded. After the beginning expansion, it cool to let subatomic particles and later on, simple atoms to form. .