The Very Small Array (VSA) - Department of Physics
... These fluctuations in the CMB are tiny, only one 10,000th of a degree centigrade at most. I am now the Project Manager of the Very Small Array (VSA). The VSA is a custom-built radio telescope (operating between 26-36 GHz), designed expressly to make highsensitivity observations of the CMB on angular ...
... These fluctuations in the CMB are tiny, only one 10,000th of a degree centigrade at most. I am now the Project Manager of the Very Small Array (VSA). The VSA is a custom-built radio telescope (operating between 26-36 GHz), designed expressly to make highsensitivity observations of the CMB on angular ...
powerpoint
... • WIMPs – weakly interactive massive particles. • These are atomic particles much heavier than a proton that would not emit much ...
... • WIMPs – weakly interactive massive particles. • These are atomic particles much heavier than a proton that would not emit much ...
Topic 4 - The University of Sheffield
... from BBNS with our measurements of Ω0 we can tell what fraction of the Universe we expect to be Baryons. ‣ The nuclear reactions that occur in the early Universe are very interesting. It is covered more fully in other courses. Here we just show the main reaction equations (opposite) and give the mos ...
... from BBNS with our measurements of Ω0 we can tell what fraction of the Universe we expect to be Baryons. ‣ The nuclear reactions that occur in the early Universe are very interesting. It is covered more fully in other courses. Here we just show the main reaction equations (opposite) and give the mos ...
dark matter. - Gordon State College
... must occur. Fusion only occurs when matter is very hot and very dense. • Scientists predict that if the Big Bang occurred, there would not have been enough time to form any heavy elements due to the rapidly expanding universe; only hydrogen and helium could have been formed. • Strong evidence for th ...
... must occur. Fusion only occurs when matter is very hot and very dense. • Scientists predict that if the Big Bang occurred, there would not have been enough time to form any heavy elements due to the rapidly expanding universe; only hydrogen and helium could have been formed. • Strong evidence for th ...
- Life`s Big Questions
... 1. Physical laws that we know today are unchanged 2. The laws are constant throughout universe 3. Red shift is caused by light source moving away from us If universe is expanding & we roll back time, everything goes back to a point in space time from which it all started - The “Big Bang” ...
... 1. Physical laws that we know today are unchanged 2. The laws are constant throughout universe 3. Red shift is caused by light source moving away from us If universe is expanding & we roll back time, everything goes back to a point in space time from which it all started - The “Big Bang” ...
uncorrected page proofs
... others the universe would expand for a time and then collapse back on itself. It is interesting to note that this theoretical work was established before Hubble measured the recession of the galaxies. Georges Lemaitre (1894–1966) was both a Catholic priest and professor of physics who was fascinated ...
... others the universe would expand for a time and then collapse back on itself. It is interesting to note that this theoretical work was established before Hubble measured the recession of the galaxies. Georges Lemaitre (1894–1966) was both a Catholic priest and professor of physics who was fascinated ...
Dark Matter in the Universe
... From the temperature of the cosmic microwave backtle through space, astronomers can figure out the gravitational forces required to sustain their motions—and the amount of ground—which has been measured—the number of photons is invisible matter they must contain. now known. Therefore, to determine t ...
... From the temperature of the cosmic microwave backtle through space, astronomers can figure out the gravitational forces required to sustain their motions—and the amount of ground—which has been measured—the number of photons is invisible matter they must contain. now known. Therefore, to determine t ...
- California State University
... With (3), known as Hubble’s Law, inferred from the observational data, the implication was that the Universe was expanding, and therefore has a finite age. The best estimate currently is (13.799 ± 0.021) × 109 years [6]. The concept of an expanding Universe with time had been considered theoreticall ...
... With (3), known as Hubble’s Law, inferred from the observational data, the implication was that the Universe was expanding, and therefore has a finite age. The best estimate currently is (13.799 ± 0.021) × 109 years [6]. The concept of an expanding Universe with time had been considered theoreticall ...
Pop Goes the Universe
... Agency held an international press conference to announce new results from a satellite called Planck. The spacecraft had mapped the cosmic microwave background (CMB) radiation, light emitted more than 13 billion years ago just after the big bang, in better detail than ever before. The new map, scien ...
... Agency held an international press conference to announce new results from a satellite called Planck. The spacecraft had mapped the cosmic microwave background (CMB) radiation, light emitted more than 13 billion years ago just after the big bang, in better detail than ever before. The new map, scien ...
Modification of Newton`s law of gravity at very large distances
... the homogeneity of the dark matter in the Universe is consistent with a fractal distribution of baryons in space, in which the luminous matter is located on thin two-dimensional surfaces separated by empty regions of ever growing size. 2002 Elsevier Science B.V. All rights reserved. ...
... the homogeneity of the dark matter in the Universe is consistent with a fractal distribution of baryons in space, in which the luminous matter is located on thin two-dimensional surfaces separated by empty regions of ever growing size. 2002 Elsevier Science B.V. All rights reserved. ...
Lecture 5: Matter Dominated Universe: CMB Anisotropies and Large
... and Large Scale Structure Today, matter is assembled into structures: filaments, clusters, galaxies, stars, etc. Galaxy formation is not completely understood. Main mechanism is gravitational instability: ρthen θ ρnow θ ...
... and Large Scale Structure Today, matter is assembled into structures: filaments, clusters, galaxies, stars, etc. Galaxy formation is not completely understood. Main mechanism is gravitational instability: ρthen θ ρnow θ ...
The origin of elements For life we need some complexity, and
... Why is this, though? Fusion takes place when combining nuclei can make them more energetically bound than they had been. The problem here is that (1) 4 He is by far the most bound of the light elements, so that (2) essentially only hydrogen and 4 He were around after a couple of minutes. Yes, there ...
... Why is this, though? Fusion takes place when combining nuclei can make them more energetically bound than they had been. The problem here is that (1) 4 He is by far the most bound of the light elements, so that (2) essentially only hydrogen and 4 He were around after a couple of minutes. Yes, there ...
In Search of the Dark Matter in the Universe
... interact with matter and the universe became transparent for electromagnetic radiation. This radiation from the early universe was first discovered by R. Wilson and A. Penzias in 1965. They received the Nobel prize for this finding in 1978. Their discovery was made by chance, since they were on a mi ...
... interact with matter and the universe became transparent for electromagnetic radiation. This radiation from the early universe was first discovered by R. Wilson and A. Penzias in 1965. They received the Nobel prize for this finding in 1978. Their discovery was made by chance, since they were on a mi ...
Taking “The Road Not Taken”: On the Benefits
... circumstances, we should allow ourselves to think from time to time outside the (simulation) box. It is always prudent to allocate some limited resources to innovative ideas beyond any dogmatic “mainstream,” because even if only one out of a million such ideas bears fruit, it could transform our vie ...
... circumstances, we should allow ourselves to think from time to time outside the (simulation) box. It is always prudent to allocate some limited resources to innovative ideas beyond any dogmatic “mainstream,” because even if only one out of a million such ideas bears fruit, it could transform our vie ...
Cosmic Hide and Seek: the Search for the Missing Mass
... to compute the mass of the same cluster of galaxies, he came up with a number that was 400 times his original estimate (1). This discrepancy in the observed and computed masses is now known as "the missing mass problem." Nobody did much with Zwicky's finding until the 1970's, when scientists began t ...
... to compute the mass of the same cluster of galaxies, he came up with a number that was 400 times his original estimate (1). This discrepancy in the observed and computed masses is now known as "the missing mass problem." Nobody did much with Zwicky's finding until the 1970's, when scientists began t ...
Dark Matter in the Universe
... turns out, gravity from our galaxy is pulling apart this dwarf tems exist because we have no observational data either to galaxy, which will cease to exist as a separate entity after sever- confirm or to deny their presence. al orbits. Our galaxy itself may be made up of dozens of such previous acq ...
... turns out, gravity from our galaxy is pulling apart this dwarf tems exist because we have no observational data either to galaxy, which will cease to exist as a separate entity after sever- confirm or to deny their presence. al orbits. Our galaxy itself may be made up of dozens of such previous acq ...
Eternal Inflation
... The standard big bang theory is, of course, a very significant scientific theory. It describes how the early universe expanded and cooled from an initially very hot dense state. It describes how the light chemical elements that we observe today were synthesized during the first 200 seconds or so of ...
... The standard big bang theory is, of course, a very significant scientific theory. It describes how the early universe expanded and cooled from an initially very hot dense state. It describes how the light chemical elements that we observe today were synthesized during the first 200 seconds or so of ...
1-structure-of-the-universe-and-the-big-bang
... A) red shift in the light from distant galaxies B) change in the swing direction of a Foucault pendulum on Earth C) parallelism of Earth's axis in orbit D) spiral shape of the Milky Way Galaxy 16. According to the big bang theory, the universe began as an explosion and is still expanding. This theor ...
... A) red shift in the light from distant galaxies B) change in the swing direction of a Foucault pendulum on Earth C) parallelism of Earth's axis in orbit D) spiral shape of the Milky Way Galaxy 16. According to the big bang theory, the universe began as an explosion and is still expanding. This theor ...
Syllabus - University of Texas Rio Grande Valley
... State the three main types of galaxies. State the two main components of spiral galaxies (disk, spheroidal). State the two main parts of the spheroidal component of spiral galaxies (bulge, halo). State which type(s) of galaxies present a spheroidal component. State the different methods used to dete ...
... State the three main types of galaxies. State the two main components of spiral galaxies (disk, spheroidal). State the two main parts of the spheroidal component of spiral galaxies (bulge, halo). State which type(s) of galaxies present a spheroidal component. State the different methods used to dete ...
The Teleological Argument - University of Colorado Boulder
... that its several parts are framed and put together for a purpose, e.g., that they are so formed and adjusted as to produce motion, and that motion so regulated as to point out the hour of the day; that if the different parts had been differently shaped …, of a different size …, or placed after any o ...
... that its several parts are framed and put together for a purpose, e.g., that they are so formed and adjusted as to produce motion, and that motion so regulated as to point out the hour of the day; that if the different parts had been differently shaped …, of a different size …, or placed after any o ...
An Alternative Cosmology to the Big Bang–Dispersive Extinction
... 2. Fundamental Inconsistencies of the Big Bang Theory 2.1 The Geocentric Nature of Hubble Law In 1920s, Hubble discovered that the spectroscopic red shift of a star or galaxy is by and large linearly proportional to its distance from the earth (Hubble, 1926, 1929, 1936). Hubble proposed that the red ...
... 2. Fundamental Inconsistencies of the Big Bang Theory 2.1 The Geocentric Nature of Hubble Law In 1920s, Hubble discovered that the spectroscopic red shift of a star or galaxy is by and large linearly proportional to its distance from the earth (Hubble, 1926, 1929, 1936). Hubble proposed that the red ...
File - Philosophy, Theology, History, Science, Big
... 1) If we did observe a universe to human scale, then that would be strong disconfirmation of the fine-tuning argument, and thus further evidence for the argument from scale. Moreover, we wouldn't be embodied moral agents in a universe to human scale, and thus more evidence for the argument for natur ...
... 1) If we did observe a universe to human scale, then that would be strong disconfirmation of the fine-tuning argument, and thus further evidence for the argument from scale. Moreover, we wouldn't be embodied moral agents in a universe to human scale, and thus more evidence for the argument for natur ...
Priestly Contributions to Modern Science: The
... closed, but not bounded. However, the astronomer Edwin Hubble observed spiral nebulae were retreating from the Earth at velocities proportional to their distance, thereby suggesting an expanding universe. The mathematician Willem de Sitter developed a mathematically interesting model that includes e ...
... closed, but not bounded. However, the astronomer Edwin Hubble observed spiral nebulae were retreating from the Earth at velocities proportional to their distance, thereby suggesting an expanding universe. The mathematician Willem de Sitter developed a mathematically interesting model that includes e ...
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model accounts for the fact that the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and Hubble's Law. If the known laws of physics are extrapolated beyond where they are valid, there is a singularity. Modern measurements place this moment at approximately 13.8 billion years ago, which is thus considered the age of the universe. After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, and later simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies.Since Georges Lemaître first noted, in 1927, that an expanding universe might be traced back in time to an originating single point, scientists have built on his idea of cosmic expansion. While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, accumulated empirical evidence provides strong support for the former. In 1929, from analysis of galactic redshifts, Edwin Hubble concluded that galaxies are drifting apart, important observational evidence consistent with the hypothesis of an expanding universe. In 1965, the cosmic microwave background radiation was discovered, which was crucial evidence in favor of the Big Bang model, since that theory predicted the existence of background radiation throughout the universe before it was discovered. More recently, measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to dark energy's existence. The known physical laws of nature can be used to calculate the characteristics of the universe in detail back in time to an initial state of extreme density and temperature.