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Hubble constant | H0 | 70 km/s/Mpc |
Dark Energy (Cosmological Constant) | WL | 0.70 |
Non-baryonic Cold Dark Matter | Wc | 0.26 |
Baryons (ordinary atomic matter) | Wb | 0.04 |
Hot Dark Matter (Neutrinos) | Wn | < 0.01 |
Radiation (Cosmic Microwave Background) | Wg | 6 × 10-5 |
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Þ H0 = 73 ± 4 (statistical) ± 5 (systematic) km/s/Mpc |
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Saul Perlmutter et al. (1998) | ||
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Kirshner (1998) | ||
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Perlmutter & Schmidt (2003) | ||
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Riess et al (2004) |
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Þ T0 = 2.725 ± .001 K |
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WMAP total
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WMAP including dipole
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Þ Universe is flat to 1% |
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syllabus | timetable | projects | homework | clicker questions | weekly summaries | books, movies | images |
Updated 2006 Dec 13