Origins of the Universe
... us the more it is red shifted • The only explanation for that is if everything is moving away from us. • This means the universe is expanding ...
... us the more it is red shifted • The only explanation for that is if everything is moving away from us. • This means the universe is expanding ...
The Universe and Big Bang Theory Review Sheet
... 8. How does gravity play a role in the forming of stars? - gravity causes the gas and dust clouds to clump up, forming larger balls of gas and dust molecules. 9. A star is born how? (step 3 in Star Origin notes) -When the mass becomes slightly larger than Jupiter, the gravitational contraction cause ...
... 8. How does gravity play a role in the forming of stars? - gravity causes the gas and dust clouds to clump up, forming larger balls of gas and dust molecules. 9. A star is born how? (step 3 in Star Origin notes) -When the mass becomes slightly larger than Jupiter, the gravitational contraction cause ...
Origins of the Universe (FIB)
... 1. _________ causes the matter of the nebula to _________ and __________ 2. The contracting nebula begins to ___________ into a spinning pancake shape with a bulge at the center. This bulge became the ________. 3. Some of the cooler material also clumped together because of gravity to form the _____ ...
... 1. _________ causes the matter of the nebula to _________ and __________ 2. The contracting nebula begins to ___________ into a spinning pancake shape with a bulge at the center. This bulge became the ________. 3. Some of the cooler material also clumped together because of gravity to form the _____ ...
Dark Matter and Dark Energy
... • Inference from observations of – the motions of stars and gas in galaxies, cluster galaxy radial velocities, hot gas properties of clusters, and gravitational lensing of distant, background galaxies by foreground galaxy clusters all suggest large amounts of Dark Matter exist. – Radial velocity is ...
... • Inference from observations of – the motions of stars and gas in galaxies, cluster galaxy radial velocities, hot gas properties of clusters, and gravitational lensing of distant, background galaxies by foreground galaxy clusters all suggest large amounts of Dark Matter exist. – Radial velocity is ...
More detailed notes
... cooled sufficiently to allow deuterium (2H) nuclei to be stable (at higher temperatures, deuterium nuclei are broken up by the process 2H + γ → p + n). At this time, the universe consists mostly of protons and free neutrons (free neutrons are unstable and decay, but their half-life is about 10 minut ...
... cooled sufficiently to allow deuterium (2H) nuclei to be stable (at higher temperatures, deuterium nuclei are broken up by the process 2H + γ → p + n). At this time, the universe consists mostly of protons and free neutrons (free neutrons are unstable and decay, but their half-life is about 10 minut ...
Probing the Edge of the Solar System: Formation of
... •At t=10-6 second, the temperature in the universe dropped to the threshold temperature of 1013 K, at which the photons can not produce proton and anti-proton pairs (and neutron and antineutron pairs) •At about t = 1 second, temperature fell below 6 X 109 K, electrons and positions annihilated to fo ...
... •At t=10-6 second, the temperature in the universe dropped to the threshold temperature of 1013 K, at which the photons can not produce proton and anti-proton pairs (and neutron and antineutron pairs) •At about t = 1 second, temperature fell below 6 X 109 K, electrons and positions annihilated to fo ...
Star Formation 1/18/2015
... ___________ - the fusing together of atoms to create energy (Not fission the breaking apart of atoms) More energy, less waste than fission Why not do it on the Earth? Requirements Densities around 100 gm/cc, Temperature over 13 million K ...
... ___________ - the fusing together of atoms to create energy (Not fission the breaking apart of atoms) More energy, less waste than fission Why not do it on the Earth? Requirements Densities around 100 gm/cc, Temperature over 13 million K ...
Age, Evolution, and Size of the Cosmos
... • All forces are carried by particles (photons, gluons, W/Z) • Gravity must be carried by gravitons. Quantum effects are small at low energies, but they dominate when field is strong. • QG is still being developed (string theory, loop gravity, etc) • Main applications of QG: Early Universe, black ho ...
... • All forces are carried by particles (photons, gluons, W/Z) • Gravity must be carried by gravitons. Quantum effects are small at low energies, but they dominate when field is strong. • QG is still being developed (string theory, loop gravity, etc) • Main applications of QG: Early Universe, black ho ...
Document
... • A scientific model must do two things: – Explain what is seen. – Predict what will happen accurately. – Or, predict what can be seen before one thinks to look. ...
... • A scientific model must do two things: – Explain what is seen. – Predict what will happen accurately. – Or, predict what can be seen before one thinks to look. ...
Ejecta from neutron star mergers and the role of
... The merger of a binary system of neutron stars is among the most extreme events happening in the Universe. In addition to be intense gravitational wave emitters and presumably the progenitor of a subclass of Gamma-Ray Bursts (GRBs), the so-called “short GRBs”, these events are expected to eject matt ...
... The merger of a binary system of neutron stars is among the most extreme events happening in the Universe. In addition to be intense gravitational wave emitters and presumably the progenitor of a subclass of Gamma-Ray Bursts (GRBs), the so-called “short GRBs”, these events are expected to eject matt ...
Where Did the Elements Come From?
... • Most atoms in living things come from six elements: carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur • It is believed all 93 elements were created in the centers of stars billions of years ago. ...
... • Most atoms in living things come from six elements: carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur • It is believed all 93 elements were created in the centers of stars billions of years ago. ...
Exam 4 Study Guide
... and the strong force. Based on supernovae data the Universe will keep expanding at a faster rate. We have about 120 meteorites from Mars. Of the soil samples studied by Viking, 3 of 4 showed compatibility with the presence of life. The moons of Jupiter that might host life are Europa, Ganymede ...
... and the strong force. Based on supernovae data the Universe will keep expanding at a faster rate. We have about 120 meteorites from Mars. Of the soil samples studied by Viking, 3 of 4 showed compatibility with the presence of life. The moons of Jupiter that might host life are Europa, Ganymede ...
Abundances - Michigan State University
... As matter is electrically neutral, for each nucleus with charge number Z there are Z electrons: ...
... As matter is electrically neutral, for each nucleus with charge number Z there are Z electrons: ...
Astrobiology 101
... In the very beginning, both space and time were created in the Big Bang. It happened 13.7 billion years ago. Afterwards, the universe was a very hot, expanding soup of fundamental particles. The universe expanded rapidly during inflation and expands at a more or less constant rate now. As it grows, ...
... In the very beginning, both space and time were created in the Big Bang. It happened 13.7 billion years ago. Afterwards, the universe was a very hot, expanding soup of fundamental particles. The universe expanded rapidly during inflation and expands at a more or less constant rate now. As it grows, ...
Slides on Big Bang nucleosynthesis
... (requires 3-body collisions) à Deuterium bottleneck - Nucleosynthesis waits until D forms. - Then nuclei immediately form up to 4He. ...
... (requires 3-body collisions) à Deuterium bottleneck - Nucleosynthesis waits until D forms. - Then nuclei immediately form up to 4He. ...
Going to the End of the Earth to Learn About the Beginning of the
... ever taken Over 10,000 galaxies in this image! ...
... ever taken Over 10,000 galaxies in this image! ...
What is the Big Bang Theory?
... Lemaître was the first to propose that the universe began with the explosion Edwin Hubble supported this theory also. found experimental evidence to help justify Lemaître's theory. He found that distant galaxies in every direction are going away from us with speeds proportional to their distance. ...
... Lemaître was the first to propose that the universe began with the explosion Edwin Hubble supported this theory also. found experimental evidence to help justify Lemaître's theory. He found that distant galaxies in every direction are going away from us with speeds proportional to their distance. ...
document
... NUCLEOSYNTHESIS ENDED AT THIS POINT. A CLOUD OF NUCLEI, ELECTRONS, PROTONS, AND PHOTONS EXISTED AT THIS POINT - A ...
... NUCLEOSYNTHESIS ENDED AT THIS POINT. A CLOUD OF NUCLEI, ELECTRONS, PROTONS, AND PHOTONS EXISTED AT THIS POINT - A ...
CDFS Lecture
... Two nuclei of Deuterium fuse to form a Helium nucleus. Mass is lost and energy released, according to E = mc2 ...
... Two nuclei of Deuterium fuse to form a Helium nucleus. Mass is lost and energy released, according to E = mc2 ...
Nuclear and Particle Physics - Lecture 26 Nucleosynthesis 1
... The critical difference from nucleosynthesis in the early Universe was the absence of neutrons. The early neutrons had decayed soon after the Big Bang and so the stars which formed were effectively made from hydrogen with some helium. At the temperatures which were reached, these gases form a plasma ...
... The critical difference from nucleosynthesis in the early Universe was the absence of neutrons. The early neutrons had decayed soon after the Big Bang and so the stars which formed were effectively made from hydrogen with some helium. At the temperatures which were reached, these gases form a plasma ...
Star Factories: Nuclear Fusion and the Creation of the Elements
... pellets in a shot gun shell that has been fired. These neutrons pass through the outer regions of the star, colliding with the atoms already there (mostly hydrogen). The collisions happen very rapidly and quickly build up very large atoms. ...
... pellets in a shot gun shell that has been fired. These neutrons pass through the outer regions of the star, colliding with the atoms already there (mostly hydrogen). The collisions happen very rapidly and quickly build up very large atoms. ...
The big bang left the universe with its first atoms
... In the very beginning, both space and time were created in the Big Bang. It happened 13.7 billion years ago. Afterwards, the universe was a very hot, expanding soup of fundamental particles. The universe expanded rapidly during inflation and expands at a more or less constant rate now. As it grows, ...
... In the very beginning, both space and time were created in the Big Bang. It happened 13.7 billion years ago. Afterwards, the universe was a very hot, expanding soup of fundamental particles. The universe expanded rapidly during inflation and expands at a more or less constant rate now. As it grows, ...
Earth Science
... Earth’s axis? 10. Match the following terms with their definitions. ___ Big Bang theory ___ steady-state theory ___ cosmic background radiation ___ inflationary universe A. background noise caused by weak radiation that comes from all directions in space B. model that proposes that the universe bega ...
... Earth’s axis? 10. Match the following terms with their definitions. ___ Big Bang theory ___ steady-state theory ___ cosmic background radiation ___ inflationary universe A. background noise caused by weak radiation that comes from all directions in space B. model that proposes that the universe bega ...