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LECTURES ON DARK MATTER LECTURE
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WHAT DO WE ACTUALLY EMPIRICALLY KNOW ABOUT DARK MATTER?
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WE KNOW HOW MUCH REGULAR MATTER THERE IS RELATIVE TO PHOTONS
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BIG BANG NUCLEOSYNTHESIS BBN TELLS US HOW MUCH ORDINARY MATTER THERE IS RELATIVE TO RADIATION
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RECOMBINATION AND BARYON-TO-PHOTON RATIO
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Surface of last scattering recombination Too hot for atoms
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BARYON-TO-PHOTON RATIO VS. MATTER-RADIATION EQUALITY
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UPSHOT: A NON-BARYONIC COMPONENT OF MATTER WAS PRESENT IN THE EARLY UNIVERSE. ... WHAT WAS IT DOING?
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WHAT IS THE DARK MATTER THERMAL HISTORY?
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BBN CONSTRAINTS ON N AND DARK MATTER THERMAL HISTORY
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THERMAL HISTORY FROM SMALL DARK MATTER HALOS
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DARK MATTER DECOUPLING WHILE RELATIVISTIC
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THERMAL HISTORY EFFECTS ON COSMOLOGY
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A PROBE OF SMALL-SCALE CLUSTERING: LY-A FOREST
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FINDING NEW DWARF GALAXIES
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UNDERSTANDING GALAXY-HALO CONNECTION EMPIRICALLY
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OTHER PROBES OF SMALL-SCALE DARK MATTER SUB-HALOS
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UPSHOT: ALL OBSERVATIONS SO FAR ARE CONSISTENT WITH COLD DARK MATTER
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BEHAVIOUR OF PERTURBATIONS IN PRE-RECOMBINATION FLUID
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DARK MATTER DECOUPLING WHILE RELATIVISTIC
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DOES THE DARK MATTER INTERACT MUCH IN THE EARLY UNIVERSE?
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FLUCTUATIONS IN THE PLASMA
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THE CMB AND DARK MATTER-BARYON DRAG
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TESTING DARK MATTER BARYON SCATTERING WITH SMALL-SCALE DARK MATTER
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BEHAVIOUR OF PERTURBATIONS IN PRE-RECOMBINATION FLUID
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UPSHOT: DARK MATTER IS NOT INTERACTING VERY MUCH IN EARLY UNIVERSE
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RECAP OF DARK MATTER REQUIREMENTS SO FAR
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CONSTRAINTS ON THE DARK MATTER CONSTITUENT MASS
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LIGHTEST KNOWN DARK MATTER-DOMINATED SYSTEMS CAN'T BE A FRACTION, OF A DARK MATTER "PARTICLE"
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IF DARK MATTER IS A BOSON. .. EXHIBITS MACROSCOPIC WAVE BEHAVE
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IF DARK MATTER IS A FERMION. .. PAULI EXCLUSION
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DARK MATTER MASS
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HOW TO APPROACH THIS HUGE SPACE OF POSSIBILITIES?
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THERMAL DARK MATTER PRODUCTION
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FLUCTUATIONS IN THE PLASMA
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BEHAVIOUR OF PERTURBATIONS IN PRE-RECOMBINATION FLUID
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Q&A
Description:
Explore the mysteries of dark matter in this comprehensive lecture from the Physics of the Early Universe program. Delve into empirical knowledge about dark matter, its thermal history, and constraints from Big Bang nucleosynthesis. Examine the effects of dark matter on cosmology, including small-scale clustering and the Lyman-alpha forest. Investigate the behavior of perturbations in the pre-recombination fluid and the interactions of dark matter in the early universe. Learn about constraints on dark matter constituent mass, considering both bosonic and fermionic possibilities. Discover approaches to understanding the vast range of dark matter possibilities, including thermal production mechanisms. Gain insights into cutting-edge research on dark matter's role in the formation and evolution of the universe.

Dark Matter: Properties and Behavior in the Early Universe - Lecture 1

International Centre for Theoretical Sciences
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#Science #Astronomy #Astrophysics #Dark Matter #Cosmology
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