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Cosmic genesis Physical Laws Drive the Formation of Structure in the Universe

Cosmic genesis Physical Laws Drive the Formation of Structure in the Universe. Fred C. Adams Physics Department, University of Michigan. SATURDAY MORNING PHYSICS. How did we get here?. Four Forces of Nature. Strong. Gravity. Weak. Electromagnetism. Classical (19th century) Physics.

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Cosmic genesis Physical Laws Drive the Formation of Structure in the Universe

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  1. Cosmic genesis Physical Laws Drive the Formation of Structure in the Universe Fred C. Adams Physics Department, University of Michigan SATURDAY MORNING PHYSICS

  2. How did we get here?

  3. Four Forces of Nature Strong Gravity Weak Electromagnetism

  4. Classical (19th century) Physics Quantum Mechanics Relativity Chaos Our Universe

  5. Cosmic Timeline (uchicago.edu)

  6. GSWE

  7. The Inflationary Universe (Guth/Wudka) (G vs G) Time in seconds

  8. Matter > Antimatter S vs G (members.aol.com)

  9. time t < 1 second: Dark Matter Freezes Out Dark matter abundance freezes before the universe is 1 second old W vs G

  10. The synthesis of light elements begins when the universe is one second old S vs E vs G (physics.uoregon.edu)

  11. Helium Deuterium Lithium (Schramm)

  12. COBE Blackbody T = 2.723 Kelvin Intensity frequency E

  13. WMAP:Cosmic Background Radiation E vs G

  14. G The VIRGO consortium

  15. Andromeda: Our sister galaxy

  16. Cosmological Parameters

  17. Fates of the Universe

  18. Fates of the Universe Accelerating G

  19. 14 Gyr 54 Gyr Island Universe 92 Gyr Busha, Adams, Evrard, and Wechsler 2003

  20. Every galaxy has a supermassive black hole anchoring its center Mbh = millions to billions of Suns Gravity wins! G (astro.cf.ac.uk)

  21. Every galaxy produces about one million stellar mass black holes (Gravity wins again) G (life-enhancement.com)

  22. EM radiation

  23. Stars are still forming today The Eagle Nebula (Hester et al.)

  24. Orion

  25. The Stages of Star Formation Gravity vs Pressure

  26. C Luminosity B A Spectral Class (Faulkes)

  27. The fifty (50) nearest stars Our Sun is the fourth largest!

  28. The Periodic Table of Elements S,W (aether.lbl.edu)

  29. S,W vs E

  30. Late Nuclear Burning Stages of a Massive Star - just before IGNITION G,E,S,W (Faulkes)

  31. Distribution of Stellar Masses Stars that explode Stars that become white dwarfs Brown dwarfs

  32. Galaxy continues to • make new stars. • Time scales are • lengthened by: • Recycling • Infall onto disk • Reduced SF rate

  33. Star formation continues until the galaxy runs out of gas (trillions of years from now) The smallest, longest lived stars last for tens of trillions of years

  34. Star formation continues until the galaxy runs out of gas (trillions of years from now) The smallest, longest lived stars last for tens of trillions of years Our universe is young: Only one tenth of one percent of the Stelliferous Era has taken place so far!

  35. Extrasolar Planets! California planet search

  36. California planet search

  37. Planets form out of circumstellar disks G. Bryden G,E

  38. Comets can carry water to newborn terrestrial planets

  39. But most water for Earth probably came from hydrogenated rocks

  40. Galilean Satellites: Icy worlds are easy to make Ganymede Callisto Io Europa

  41. E

  42. Our universe seems to have just the right version of the laws of physics so thatLIFE CAN EMERGE

  43. Our universe seems to have just the right version of the laws of physics so thatLIFE CAN EMERGE WHY?

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