class 1,S11
... —No, the observable portion of the universe is about 14 billion light-years in radius because the universe is about 14 billion years old. ALSO (not in Ch. 1 of the book), we can “see” only about 4% of the universe, 96% is made of “dark matter” and “dark energy”. ...
... —No, the observable portion of the universe is about 14 billion light-years in radius because the universe is about 14 billion years old. ALSO (not in Ch. 1 of the book), we can “see” only about 4% of the universe, 96% is made of “dark matter” and “dark energy”. ...
The Early Universe PowerPoint
... • Universe expanded by a factor of ~ 1050 – During this time interval, the cosmological constant was huge ...
... • Universe expanded by a factor of ~ 1050 – During this time interval, the cosmological constant was huge ...
Cosmology – The Origin and Evolution of the Universe
... firecrackers. And at a single moment in cosmic time, every firecracker went off. • What would you hear? • --- one GiNormous ear-splitting “BANG”? • --- or, a continous ROAR that would never end? ...
... firecrackers. And at a single moment in cosmic time, every firecracker went off. • What would you hear? • --- one GiNormous ear-splitting “BANG”? • --- or, a continous ROAR that would never end? ...
Week 10 - Galaxies and Universe Expansion
... rock that move about within the solar system are known as meteoroids. When a chunk of rock strikes the surface of a planet or moon it is known as a meteorite. ...
... rock that move about within the solar system are known as meteoroids. When a chunk of rock strikes the surface of a planet or moon it is known as a meteorite. ...
10.1
... Visible light is a spectrum of energy ranging from higher-energy, shorter-wavelength, violet-coloured light to lower-energy, longer-wavelength, red-coloured light. A spectroscope is an instrument that can separate white light into its wavelengths of colour. If a star is moving toward you, its wavele ...
... Visible light is a spectrum of energy ranging from higher-energy, shorter-wavelength, violet-coloured light to lower-energy, longer-wavelength, red-coloured light. A spectroscope is an instrument that can separate white light into its wavelengths of colour. If a star is moving toward you, its wavele ...
Written in the stars THE NOBEL PRIZE IN PHYSICS 2011
... The coming and going of the cosmological constant What was observed in space had already been suggested by theoretical calculations. In 1915, Albert Einstein published his General Theory of Relativity, which has been the foundation of our understanding of the Universe ever since. The theory describe ...
... The coming and going of the cosmological constant What was observed in space had already been suggested by theoretical calculations. In 1915, Albert Einstein published his General Theory of Relativity, which has been the foundation of our understanding of the Universe ever since. The theory describe ...
January 28
... • Gravitationally bound group of galaxies that the Milky Way is a member of • Contains more than 30 galaxies ...
... • Gravitationally bound group of galaxies that the Milky Way is a member of • Contains more than 30 galaxies ...
teachers version.
... b) There is a very clear pattern here. Describe how speed and distance are related. The farther away a galaxy is, the faster it appears to be moving away from us. c) A galaxy is 2 billion light-years away. How fast is it moving? Label this on the graph. 32 million m/s d) A galaxy is 5 billion light- ...
... b) There is a very clear pattern here. Describe how speed and distance are related. The farther away a galaxy is, the faster it appears to be moving away from us. c) A galaxy is 2 billion light-years away. How fast is it moving? Label this on the graph. 32 million m/s d) A galaxy is 5 billion light- ...
class 1,F10
... —No, the observable portion of the universe is about 14 billion light-years in radius because the universe is about 14 billion years old. ALSO (not in Ch. 1 of the book), we can “see” only about 4% of the universe, 96% is made of “dark matter” and “dark energy”. ...
... —No, the observable portion of the universe is about 14 billion light-years in radius because the universe is about 14 billion years old. ALSO (not in Ch. 1 of the book), we can “see” only about 4% of the universe, 96% is made of “dark matter” and “dark energy”. ...
Wilmslow Guild Lecture 2008
... possible to establish absolute distances and the size our galaxy. Many astronomers were involved in this process, and the final shape and distribution emerged in the 1930’s. Our Galaxy has a lens-shaped spiral construction, 16,000 light years thick at the centre and 3,000 light years thick at the po ...
... possible to establish absolute distances and the size our galaxy. Many astronomers were involved in this process, and the final shape and distribution emerged in the 1930’s. Our Galaxy has a lens-shaped spiral construction, 16,000 light years thick at the centre and 3,000 light years thick at the po ...
1_Introduction
... The reason for Doppler shifts: Wave crests are “bunched up” ahead of wave source, “stretched out” behind wave source. ...
... The reason for Doppler shifts: Wave crests are “bunched up” ahead of wave source, “stretched out” behind wave source. ...
Universe and Galaxy Short Study Guide
... instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass ...
... instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass ...
30galaxies and the universe
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
SPACE EXPLORATION UNIT
... The diameter of the Earth’s orbit is the baseline and we view the star from one point on the Earth 6 months apart (i.e. in December and then again in June), lining up the star to distant stars as the frame of reference. ...
... The diameter of the Earth’s orbit is the baseline and we view the star from one point on the Earth 6 months apart (i.e. in December and then again in June), lining up the star to distant stars as the frame of reference. ...
Chapter 12 Our Place in the Universe
... This means that if the distance to a light source is doubled the brightness will fall to a quarter of its original value. So, brighter stars are nearer, dimmer stars are further, right? Wrong. This only works if all stars are the same, but they’re not. Some stars are simply brighter than others. The ...
... This means that if the distance to a light source is doubled the brightness will fall to a quarter of its original value. So, brighter stars are nearer, dimmer stars are further, right? Wrong. This only works if all stars are the same, but they’re not. Some stars are simply brighter than others. The ...
Science Implications of Various Servicing Options
... The light at the wavelength of this line is the color it is when it is absorbed (in this case, yellow). This same line is shifted to redder wavelengths when observed by someone moving away from the absorber. ...
... The light at the wavelength of this line is the color it is when it is absorbed (in this case, yellow). This same line is shifted to redder wavelengths when observed by someone moving away from the absorber. ...
How Far is far ?
... both ends of the baseline. The angles to the object from each starting point are different. • A little trigonometry shows how far out each line of sight meets the other. ...
... both ends of the baseline. The angles to the object from each starting point are different. • A little trigonometry shows how far out each line of sight meets the other. ...
Albert Einstein
... where v = velocity from spectral line measurements d = distance to object Ho = Hubble constant in km s-1 Mpc -1 z is the redshift ...
... where v = velocity from spectral line measurements d = distance to object Ho = Hubble constant in km s-1 Mpc -1 z is the redshift ...
FUAP:
FAR
UNIVERSE
ADVISORY
PANEL
Bob
Nichol
(ICG
Portsmouth)
... “It is likely that large surveys of the Universe will continue to drive cosmology in the coming decades. The UK has a rich history in this field (e.g. APM, 2dFGRS, UKIDSS/VISTA), and should continue to play a leading role in forthcoming international CMB, radio, optical and infrared imaging and spec ...
... “It is likely that large surveys of the Universe will continue to drive cosmology in the coming decades. The UK has a rich history in this field (e.g. APM, 2dFGRS, UKIDSS/VISTA), and should continue to play a leading role in forthcoming international CMB, radio, optical and infrared imaging and spec ...
Lecture 22 - Center for Astrophysics and Space Astronomy CASA
... How Can It Expand Faster than Light? • Einstein’s Law says nothing can travel faster than light. • Particles in the inflationary universe aren’t traveling. • More space comes into existence between them. • Before inflation could see whole universe. • Since then, can only see a small part. ...
... How Can It Expand Faster than Light? • Einstein’s Law says nothing can travel faster than light. • Particles in the inflationary universe aren’t traveling. • More space comes into existence between them. • Before inflation could see whole universe. • Since then, can only see a small part. ...
Theories
... Bang is still considered by most astronomers to be the best theory we have. As with any scientific hypothesis, however, more observation and experimentation are needed to determine its credibility. ...
... Bang is still considered by most astronomers to be the best theory we have. As with any scientific hypothesis, however, more observation and experimentation are needed to determine its credibility. ...
Chap 18 Cosmology v2
... nuclear force, and the weak nuclear force— explain the interactions observed in the universe. According to current theory, all four forces were identical just after the Big Bang. At the end of the Planck time (about 10-43 s after the Big Bang), gravity became a separate force. A short time later, th ...
... nuclear force, and the weak nuclear force— explain the interactions observed in the universe. According to current theory, all four forces were identical just after the Big Bang. At the end of the Planck time (about 10-43 s after the Big Bang), gravity became a separate force. A short time later, th ...
Button Text
... remember that is not miles, that is light years. So take 2,538,000 times ten trillion and you get the amount of miles. This distance in space, while a number we cannot possibly fathom, is minuscule. The furthest objects in space are the objects at the farthest reaches of the known universe, some 13 ...
... remember that is not miles, that is light years. So take 2,538,000 times ten trillion and you get the amount of miles. This distance in space, while a number we cannot possibly fathom, is minuscule. The furthest objects in space are the objects at the farthest reaches of the known universe, some 13 ...