Cosmology W13 - Physics Department, UCSB
Cosmology W13 - Physics Department, UCSB Cosmology W13 - Physics Department, UCSB
Basic Phenomenology: LSS Galaxies are clustered:
Basic Phenomenology: galaxies • Galaxies are: – Self gravita^ng sets of stars, gas, and dark maZer • Typical size is kpc for the baryons 100s of kpc for the halo – Most of the mass is in dark maZer (so called halo) • Halo mass ranges from >10 7 to 10 13 solar masses • Upper limit set by collapse of structures • Lower limit set by ?? Dark maZer physics? – Mass in stars is at most a few percent – Majority of baryons are in gas (cold and hot), the so-called interstellar medium – Galaxies are believed to have many satellites and dark subhalos
- Page 1 and 2: Lecture 1: January 9 2013 Cosm
- Page 3 and 4: Physics 236 • Textbook: - Gala
- Page 5 and 6: Physics 236: the big ques^on
- Page 7 and 8: Physics 236: more specifically
- Page 9 and 10: Tradi^onal Observa^onal Founda^on
- Page 11 and 12: Physics 236: open problems with
- Page 13 and 14: Cosmological Principle • Physic
- Page 15 and 16: Some useful concepts/units • P
- Page 17 and 18: Olbers’ paradox. The night sky
- Page 19 and 20: Olbers’ paradox. What does the sk
- Page 21 and 22: Olbers’ paradox. The Big-Bang sol
- Page 23 and 24: Cosmic Microwave Background
- Page 25 and 26: Cosmic Microwave Background
- Page 27 and 28: Anisotropies of the CMB BenneZ
- Page 29: Basic Phenomenology: LSS
- Page 33 and 34: Basic Phenomenology: galaxies
- Page 35 and 36: Spiral galaxies • Like our ve
- Page 37 and 38: Luminosity func^on
- Page 39 and 40: Stellar mass func^on What about
- Page 41 and 42: Examples of cluster in the op^
- Page 43 and 44: Examples of cluster in the X-
- Page 45: The end
Basic Phenomenology: LSS <br />
Galaxies are clustered:
Change language