filmov
tv
'The Dark History of the Early Universe' - Tracy Slatyer
Показать описание
"The Dark History of the Early Universe: Seeking Imprints of Dark Matter Interactions on the Cosmic Dawn" by Tracy Slatyer, Junior Visiting Professor in the IAS School of Natural Sciences.
November 20, 2018 at the Institute for Advanced Study
Abstract: "84% of the matter in the universe is 'dark,' presently invisible to us except through its gravitational interactions. However, even tiny interactions between dark and visible matter could have striking effects on the primordial history of our universe: ionizing, heating and/or cooling the intergalactic gas, and modifying the spectrum of low-energy background photons. Recent claims of a detection of 21cm line emission from the epoch of cosmic dawn, when the first stars were formed, would have striking implications for such interactions if confirmed; at the same time, constraints from even earlier epochs circumscribe the possible interpretations. I will discuss these implications—including the interplay between current constraints, the possible signal, and future probes—and describe work in progress on improved techniques to map out the possible signals of dark matter annihilation and decay in this epoch."
November 20, 2018 at the Institute for Advanced Study
Abstract: "84% of the matter in the universe is 'dark,' presently invisible to us except through its gravitational interactions. However, even tiny interactions between dark and visible matter could have striking effects on the primordial history of our universe: ionizing, heating and/or cooling the intergalactic gas, and modifying the spectrum of low-energy background photons. Recent claims of a detection of 21cm line emission from the epoch of cosmic dawn, when the first stars were formed, would have striking implications for such interactions if confirmed; at the same time, constraints from even earlier epochs circumscribe the possible interpretations. I will discuss these implications—including the interplay between current constraints, the possible signal, and future probes—and describe work in progress on improved techniques to map out the possible signals of dark matter annihilation and decay in this epoch."
1:05:45
The Dark History Behind Trump's Immigration Crackdown | The Mona Charen Show
0:15:41
the entire history of the dark web, I guess
0:06:08
The dark history of arsenic - Neil Bradbury
0:05:14
The dark history of Mount Rushmore - Ned Blackhawk and Jeffrey D. Means
0:18:06
The Dark History of Autism
0:05:44
The dark history of Graham crackers - Stephanie Honchell Smith
0:06:03
The dark history of bananas - John Soluri
0:10:33
Dark History of the Panama Railroad | U.S. History | Extra History
0:00:58
The Dark History of 'Little Dancer Aged Fourteen'#facts #history #story
0:05:10
The dark history of zombies - Christopher M. Moreman
0:05:21
The dark history of werewolves - Craig Thomson
0:05:58
The dark history of the Chinese Exclusion Act - Robert Chang
0:00:53
The Real Reason Prisons Exist: A Dark History of Mass Incarceration
0:00:32
The Dark History Of Genghis Khan's Funeral
0:05:47
The dark history of the overthrow of Hawaii - Sydney Iaukea
0:01:05
The dark history of Teflon pans
1:00:50
The Mass Murderer Nobody Talks About: Joseph Stalin Part 1 | Dark History with Bailey Sarian
0:08:12
the dark history and purpose of the wiener dog.
1:05:13
The Secret Lives of America’s Founding Fathers | Dark History with Bailey Sarian
0:01:01
The DARK HISTORY of Indigo. ☠️🔵 #arthistory #facts #history #art #painting #interesting
0:01:16
The Dark History of Cold Palace in Ancient China
0:24:37
The Dark History of the Jaws Ride at Universal Studios Florida
0:47:35
Half Man… Half Pig?! The Bloody Truth Behind Organ Transplants | Dark History
0:47:00
Ep #3: The Rosewood Massacre | Dark History Podcast
Комментарии