PPT-18 - Structure of the Universe

Extragalactic Distance Scale Cepheids M V 335logΠ213213BV Π period days Novae M V max996231log Δm day first 2 mags Planetary Nebulae Luminosity Function M. Different theories. What are your thoughts so far?. A theory based on. The philosophy of time travel. - . Roberta . sparrow. There are two separate Universes. Primary Universe – the Universe we exist in now. perfectly. uniform, then how come the microwave background isn’t uniform?. Where did all the structure(galaxies, clusters, etc.) come from?. Density Fluctuations. Why we need them:. Can we understand where these variations come from?. Quasars. Quasars were . discovered by the . radio waves that they give off. Scientists at first had no idea what to these disruptions could possibly be. They still really don’t know.. Because of the initial ambiguity surrounding the Quasars they . Chapter 17 Cosmology. © 2017 Pearson Education, Inc.. Units of Chapter 17. The Universe on the Largest Scales. The Expanding Universe. Cosmic Dynamics and the Geometry of Space. The Fate of the Cosmos. !. Donna Kubik. Rolfsenfest. . CIRM 2013. Interdependence . of all things in the phenomenal world. “This knot (7. 4. in the table) is one of the eight glorious emblems in Tibetan Buddhism. Just as a knot does not exist without reference to its embedding in space, this emblem is a reminder of the interdependence of all things in the phenomenal world.” . Chapter 17 Cosmology. © 2017 Pearson Education, Inc.. Units of Chapter 17. The Universe on the Largest Scales. The Expanding Universe. Cosmic Dynamics and the Geometry of Space. The Fate of the Cosmos. 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 universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. 2nd Millennium BCE. BC. . . Mesopotamian cosmology . has a flat,circular Earth enclosed in a cosmic Ocean. 12. th. century BCE. C. . Rigveda. has some cosmological hymns, most notably the Nasadiya Sukta. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. 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?. The Last Epoch Cosmic Structure Formation Today we have a matter-dominated universe ruled by the force of gravity. Slight variations in density produces formation regions for stars and galaxies. 1 st html. Instructor: Witold Nazarewicz and guest stars. Assistants. : . Yannen. . Jaganathen. and Bastian . Schütrumpf. TA. : Jennifer Glick . (. patte399. @. msu.edu. ). Recommended textbooks: . Nuclear Physics: Exploring the Heart of Matter.