PPT-Early Universe

Chapter 38 Reminders Complete last Mallard based reading quiz before class on Thursday Ch 39 I will be sending out last weekly reflection and sample final on Thursday Final exam Thursday . Szydagis. 02.02.2015. 1. /10. Flammarion engraving (1888). Pondering an Ultimate Question. Originally domain of religion. . and philosophy alone, followed by science and religion mixing, then slowly separating. Secs. 37.1-37.3. Reminders. Lab . D1-LFA: . Light from Atoms . due Friday @ 4 (this will be the last lab for the semester). In-class Quiz #6 Thursday, November 20???. Keep, reschedule, or delete . will address chapter 37 only. Introduction: What is particle astrophysics?. 1. What is particle astrophysics?. Particle astrophysics is the use of particle physics techniques (experimental or theoretical) to address astrophysical questions.. Akrami. Modern Cosmology: Early Universe, CMB and LSS/ . Benasque. / August 17, 2012. Postdoctoral Fellow. Institute of Theoretical Astrophysics. University of Oslo, Norway. (Hans . Kristian. . Eriksen. Universe. ”. From. BRICKS . to. BITS. h. ugo.baldioti@engenharia.ufjf.br. Early. . History. Wooden. . toys. – 1932. Name. . Origin. :. LEg. . GOdt. (. Danish. ) = Play . Well. Coincidentally. Pankaj Jain . I.I.T. Kanpur. Introduction. Universe is assumed to be homogeneous and isotropic at large distance scales. No preferred position or direction . . From t=0 to the CBR Era. The CBR. Universe hotter & denser in the past. For T high enough - ionized & opaque – blackbody. and. Currently T=2.726 K. z(opaque. . transparent)~1100 K. The universe is the sum of all energy, matter, space and time.. But there. ’. s a difference between the universe we see (the observable universe) . and the universe as it really exists.. This gets complicated….. The time since the beginning of the universe is 1/H years or about 13.8 billion years.. The Big Bang started off immensely hot!. Radiation dominated the early universe.. Matter dominance occurs after radiation “cools” enough for matter to condense per the relationship E=mc. The Night Sky. The Milky Way. Stars (individual, binary, variable). Clusters (globular and open). Nebulae (reflection, emission, dark, planetary). SNRs, Neutron Stars, & Black Holes. Galaxies. The Universe. © 2015 Pearson Education, Inc.. 17.1 The Big Bang Theory. Our goals for learning:. What were conditions like in the early universe?. How did the early universe change with time?. © 2015 Pearson Education, Inc.. If the universe was 1 year old . . .. Science/religion – either/or?. How do we predict the conditions of the early universe?. What are the different eras in the early universe?. What key lines of evidence support the Big Bang model?. homgeneity. of the universe.. 2. understand how Hubble’s law is used to map the universe, and look back in time.. 3. Know each of the major predictions of the Big Bang theory, and corresponding confirmations by observation.. The Big Bang. Currently the most accepted, most supported theory for the early development of the Universe. In the 1920s, Edwin Hubble determined that galaxies further away from us appear to be moving away from us faster than those that are closer.