Ch. 26.5 - (www.ramsey.k12.nj.us).
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
Universe and Stars Project Final Due Date
... 2. Describe scientific explanations and conditions that explain and contributed to the origin of life on Earth (give at least 3 examples of conditions that contributed to life on Earth). http://www.ecology.com/2011/09/10/earths-beginnings-origins-life/ 3. Describe how the universe is organized and w ...
... 2. Describe scientific explanations and conditions that explain and contributed to the origin of life on Earth (give at least 3 examples of conditions that contributed to life on Earth). http://www.ecology.com/2011/09/10/earths-beginnings-origins-life/ 3. Describe how the universe is organized and w ...
Active Galactic Nuclei
... Since quasars can be seen 90% of the way across the universe, they allow us to detect gas throughout the universe. We can therefore examine galaxies (and proto-galaxies) that we can’t even see! Any time the light from a quasar goes through a galaxy that has hydrogen gas, there will be absorption at ...
... Since quasars can be seen 90% of the way across the universe, they allow us to detect gas throughout the universe. We can therefore examine galaxies (and proto-galaxies) that we can’t even see! Any time the light from a quasar goes through a galaxy that has hydrogen gas, there will be absorption at ...
Astro-2: History of the Universe
... like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
... like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
Lecture6
... like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
... like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
![cosmology[1] - KarenConnerEnglishIV](http://s1.studyres.com/store/data/002375580_1-efbe19cf7c791439d3765f11461d68f5-300x300.png)
cosmology[1] - KarenConnerEnglishIV
... idea that the space between the stars was filled with invisible stuff she called dark matter. Scientists now believe that dark matter could make up an unbelievable 99% of the universe. The density of the universe determines whether it will expand forever or eventually shrink back in a reverse of the ...
... idea that the space between the stars was filled with invisible stuff she called dark matter. Scientists now believe that dark matter could make up an unbelievable 99% of the universe. The density of the universe determines whether it will expand forever or eventually shrink back in a reverse of the ...
Time From the Perspective of a Particle Physicist
... (early shape) Cosmology. Hubble law Universe is expanding, gives universe’s age, depends on Hubble “constant” changes with time. Closed universe has gravity slowing the expansion so it starts to contract. Open universe expands forever. Early universe was very hot and when matter was created. First ...
... (early shape) Cosmology. Hubble law Universe is expanding, gives universe’s age, depends on Hubble “constant” changes with time. Closed universe has gravity slowing the expansion so it starts to contract. Open universe expands forever. Early universe was very hot and when matter was created. First ...
The Expanding Universe
... Hubble Expansion Law 1929, Edwin Hubble announced that almost all galaxies appeared to be moving away from us. This phenomenon was observed as a redshift of a galaxy's spectrum. This redshift appeared to have a larger displacement for faint, presumably further, galaxies. Hence, the farther a galaxy ...
... Hubble Expansion Law 1929, Edwin Hubble announced that almost all galaxies appeared to be moving away from us. This phenomenon was observed as a redshift of a galaxy's spectrum. This redshift appeared to have a larger displacement for faint, presumably further, galaxies. Hence, the farther a galaxy ...
TA`s solution set
... with objects (galaxies), then every possible line of sight in the sky would “hit” a star in some galaxy. If the universe were also infinitely old, then light would have had time to reach us along all of these sightlines! (If the universe had finite age, the light from sufficiently distant stars woul ...
... with objects (galaxies), then every possible line of sight in the sky would “hit” a star in some galaxy. If the universe were also infinitely old, then light would have had time to reach us along all of these sightlines! (If the universe had finite age, the light from sufficiently distant stars woul ...
Mass Outflow in the Seyfert 1 Galaxy NGC 4151
... How can we determine the curvature? • Count galaxies – if the number increases proportional to r3, Universe is “flat” – if the number increases more quickly with radius, the Universe is “open”, if more slowly, it’s closed Also: both open and flat cases – Universe is infinite; closed case – Universe ...
... How can we determine the curvature? • Count galaxies – if the number increases proportional to r3, Universe is “flat” – if the number increases more quickly with radius, the Universe is “open”, if more slowly, it’s closed Also: both open and flat cases – Universe is infinite; closed case – Universe ...
Ch. 21 notes-1
... They contain billions of stars but have little gas and dust. So they cannot form new star. They contain old stars. Irregular Galaxies Some galaxies do not have regular shapes. The Large Magellanic Cloud is an irregular galaxy about 160,000 light-years away from our galaxy. It is one of our clos ...
... They contain billions of stars but have little gas and dust. So they cannot form new star. They contain old stars. Irregular Galaxies Some galaxies do not have regular shapes. The Large Magellanic Cloud is an irregular galaxy about 160,000 light-years away from our galaxy. It is one of our clos ...
Expansion of the Universe
... 1. Scattering of blue and green light - i.e. why the sky appears blue, and why some sunrises or sunsets may appear red. Dust, smoke from forest fires, or other intervening material between the source and the observer can scatter (remove) the higher frequency colors (blue, green, yellow, and orange) ...
... 1. Scattering of blue and green light - i.e. why the sky appears blue, and why some sunrises or sunsets may appear red. Dust, smoke from forest fires, or other intervening material between the source and the observer can scatter (remove) the higher frequency colors (blue, green, yellow, and orange) ...
Big Bang
... • Lasts from 10-10 until 0.001 seconds after Big Bang • Quarks, electrons, neutrinos formed • Quarks started to make protons and neutrons and antiprotons and antineutrons ...
... • Lasts from 10-10 until 0.001 seconds after Big Bang • Quarks, electrons, neutrinos formed • Quarks started to make protons and neutrons and antiprotons and antineutrons ...
Ch. 26.5: The Expanding Universe
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
Word
... Universes were impossible (by static we mean not expanding or contracting). Such a notion was so outlandish in 1917 that he added the so-called cosmological constant, so as to permit static solutions. We now know that the Universe is expanding and that is extremely small and probably exactly ze ...
... Universes were impossible (by static we mean not expanding or contracting). Such a notion was so outlandish in 1917 that he added the so-called cosmological constant, so as to permit static solutions. We now know that the Universe is expanding and that is extremely small and probably exactly ze ...
Wh t i C l ? What is Cosmology?
... doesn’t work: dust will heat up over time until it reaches the same temperature as the stars that illuminate it ...
... doesn’t work: dust will heat up over time until it reaches the same temperature as the stars that illuminate it ...
CosmologyL1
... billion years to us. In this "baby picture" of the universe, the red and yellow patches are regions that are just a few millionths of a degree hotter than the blue and black areas. This tiny difference helped seed the formation of galaxies out of the shapeless gas that filled the early universe. CMB ...
... billion years to us. In this "baby picture" of the universe, the red and yellow patches are regions that are just a few millionths of a degree hotter than the blue and black areas. This tiny difference helped seed the formation of galaxies out of the shapeless gas that filled the early universe. CMB ...
Document
... There should be left over a background radiation with a temperature of ~ 5 Kelvin Hoyle scoffed at this theory and coined the term “Big Bang” ...
... There should be left over a background radiation with a temperature of ~ 5 Kelvin Hoyle scoffed at this theory and coined the term “Big Bang” ...
LECTURE 2: I.Our Place in the Universe
... • A list of previously known facts about nature • A list of equations handed down from Ancient times • A set of laws that were discovered by Dead White ...
... • A list of previously known facts about nature • A list of equations handed down from Ancient times • A set of laws that were discovered by Dead White ...
Document
... Andromeda, and determined their distance. Andromeda contains a spiral-shaped galaxy that, at a distance of 2.2 million light-years, is the farthest object visible to the naked eye. He calculated that Andromeda must be at least 10 times farther away than the farthest stars in the Milky Way. The Andro ...
... Andromeda, and determined their distance. Andromeda contains a spiral-shaped galaxy that, at a distance of 2.2 million light-years, is the farthest object visible to the naked eye. He calculated that Andromeda must be at least 10 times farther away than the farthest stars in the Milky Way. The Andro ...
Image Credit - Northwestern University
... time, we can see the last scattering surface (opaque boundary). Doppler shift: observed radiation will be highly redshifted because of universe expansion. ...
... time, we can see the last scattering surface (opaque boundary). Doppler shift: observed radiation will be highly redshifted because of universe expansion. ...
PowerPoint Presentation - The Origin of the Universe
... 3.6% is baryonic matter About 30% is dark matter Rest (about 70%) is dark energy! ...
... 3.6% is baryonic matter About 30% is dark matter Rest (about 70%) is dark energy! ...
Chapter 1 - El Camino College
... The scientific method is a systematic way of testing new ideas. ...
... The scientific method is a systematic way of testing new ideas. ...
Universe Standards - Harvard
... to form countless trillions of stars. Billions of galaxies, each of which is a gravitationally bound cluster of billions of stars, now form most of the visible mass in the universe.” 4. Component Concept: The universe began as being very uniform and has gotten more “lumpy” with time. i. matter was n ...
... to form countless trillions of stars. Billions of galaxies, each of which is a gravitationally bound cluster of billions of stars, now form most of the visible mass in the universe.” 4. Component Concept: The universe began as being very uniform and has gotten more “lumpy” with time. i. matter was n ...