Nucleosynthesis in the Early Universe.
... interpretation of the overall curvature of the spacetime continuum. Later we will use it to consider the question of whether the Universe is “closed or open”. •Overall there are three possibilities which we can see as being similar to the question of “Escape velocity” for an object leaving a plane ...
... interpretation of the overall curvature of the spacetime continuum. Later we will use it to consider the question of whether the Universe is “closed or open”. •Overall there are three possibilities which we can see as being similar to the question of “Escape velocity” for an object leaving a plane ...
Our Star, the Sun - Solar Physics and Space Weather
... supported by magnetic field in the corona •Prominence: the same as filament when viewed above the limb; it appears bright because it is against the dark background of space. •Plage: bright areas associated with sunspots. ...
... supported by magnetic field in the corona •Prominence: the same as filament when viewed above the limb; it appears bright because it is against the dark background of space. •Plage: bright areas associated with sunspots. ...
Test 2 - Physics@Brock
... (a) a high concentration of swimming pools, sports cars, and affected accents. (b) more than one million galaxies. (c) more than one thousand galaxies. (d) more than one hundred galaxies. 18. A common result of a galaxy collision is (a) the creation of several “child” galaxies. (b) the formation of ...
... (a) a high concentration of swimming pools, sports cars, and affected accents. (b) more than one million galaxies. (c) more than one thousand galaxies. (d) more than one hundred galaxies. 18. A common result of a galaxy collision is (a) the creation of several “child” galaxies. (b) the formation of ...
Debris Belts Around Vega
... No planets have yet been detected around Vega, but if the star were eventually found to have several giant planets in orbit, this may suggest a common model for how stars form planets and how their planetary systems evolve. ...
... No planets have yet been detected around Vega, but if the star were eventually found to have several giant planets in orbit, this may suggest a common model for how stars form planets and how their planetary systems evolve. ...
Dark Matter— More Than Meets The Eye
... Enter the WIMPs? At least some of dark matter must be made of familiar baryonic MACHO stuff, but most of it may be of an exotic nature as yet unknown. Remember that in “The Spongy Universe” activity, we found that large voids exist in the cosmos. We do not even know IF anything is present in the voi ...
... Enter the WIMPs? At least some of dark matter must be made of familiar baryonic MACHO stuff, but most of it may be of an exotic nature as yet unknown. Remember that in “The Spongy Universe” activity, we found that large voids exist in the cosmos. We do not even know IF anything is present in the voi ...
Get ready for quiz # 7
... Ellipticals also contain very little, if any, cool gas and dust, and show no evidence of ongoing star formation. Many do, however, have large clouds of hot gas, extending far beyond the visible boundaries of the galaxy. ...
... Ellipticals also contain very little, if any, cool gas and dust, and show no evidence of ongoing star formation. Many do, however, have large clouds of hot gas, extending far beyond the visible boundaries of the galaxy. ...
New layout
... no cost. This however is dependent on recovering costs from other sources. If this is not possible then a small cover charge would have to be charged. Five dollars has been suggested. As a club we cannot absorb the entire cost, as the budget is approximately half of our annual operating budget. Ther ...
... no cost. This however is dependent on recovering costs from other sources. If this is not possible then a small cover charge would have to be charged. Five dollars has been suggested. As a club we cannot absorb the entire cost, as the budget is approximately half of our annual operating budget. Ther ...
Dynamics and Space Problem Booklet 1
... 9. In an experiment, the acceleration of a ball is found by dropping it through two light gates connected to a timer. The change in speed of the ball and the time taken for the ball to pass between both light gates are measured. The spacing between the light gates are altered and the experiment ...
... 9. In an experiment, the acceleration of a ball is found by dropping it through two light gates connected to a timer. The change in speed of the ball and the time taken for the ball to pass between both light gates are measured. The spacing between the light gates are altered and the experiment ...
PoS(AASKA14)174 - Proceeding of science
... For most of human history it was believed that our Solar system, surrounded by its starry firmament, made up the entire Universe. It wasn’t until 1734 that the suggestion was made that our Sun was just one of many stars which together make up our Galaxy, an Island Universe within an otherwise empty ...
... For most of human history it was believed that our Solar system, surrounded by its starry firmament, made up the entire Universe. It wasn’t until 1734 that the suggestion was made that our Sun was just one of many stars which together make up our Galaxy, an Island Universe within an otherwise empty ...
Chapter 21: Energy and Matter in the Universe
... four fundamental forces, gravity is effective in binding matter together when large amounts of matter are present. But because the gravitational force is so weak, the effects of gravity did not become important until the Universe had cooled considerably to decrease the average kinetic energy of part ...
... four fundamental forces, gravity is effective in binding matter together when large amounts of matter are present. But because the gravitational force is so weak, the effects of gravity did not become important until the Universe had cooled considerably to decrease the average kinetic energy of part ...
The Dark Age of the Universe
... overview of these events z ⬵ 1200. Later, when the first stars formed and emitted ionizing radiation, ionized regions formed around the sources will be described, with re- that eventually overlapped, filling all of space. The size of the HII regions should be much smaller on the redshift scale spect t ...
... overview of these events z ⬵ 1200. Later, when the first stars formed and emitted ionizing radiation, ionized regions formed around the sources will be described, with re- that eventually overlapped, filling all of space. The size of the HII regions should be much smaller on the redshift scale spect t ...
Astro-2: History of the Universe
... was filled with an absorbing medium, like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
... was filled with an absorbing medium, like fog However, if light is absorbed it will also re-radiate, producing light albeit at different wavelengths, so this doesn’t work! ...
The galaxies that host powerful radio sources
... • Faint at radio and IR wavelengths. These facts suggest they are distant and dusty. ...
... • Faint at radio and IR wavelengths. These facts suggest they are distant and dusty. ...
Primordial Planet Formation - University of California San Diego
... Given the present temperature of the universe and the rate the temperature falls with redshift, we easily calculate that the remnant Big Bang radiation and hence the temperature of the universe fell below the 13.8 degree hydrogen triple point temperature at redshift z = 6.0. It has already been ...
... Given the present temperature of the universe and the rate the temperature falls with redshift, we easily calculate that the remnant Big Bang radiation and hence the temperature of the universe fell below the 13.8 degree hydrogen triple point temperature at redshift z = 6.0. It has already been ...
Stellar Physics - Craigie High School
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
Intro To The Solar System
... Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than ...
... Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than ...
Review for Astronomy 3 Midterm #2
... always present) Sun’s composition is 69% Hydrogen, 29% Helium, 2% Other elements Solar Cycle -- lasts for 22 years and is due to magnetic fields in the sun -- activities include: * sunspots and prominences (which are related) * solar flares * coronal mass ejections The sun exhibits differentia ...
... always present) Sun’s composition is 69% Hydrogen, 29% Helium, 2% Other elements Solar Cycle -- lasts for 22 years and is due to magnetic fields in the sun -- activities include: * sunspots and prominences (which are related) * solar flares * coronal mass ejections The sun exhibits differentia ...
superbubbles vs super-galactic winds
... properties of stellar clusters, given an IMF and a stellar mass range. These are the so called synthesis models of starbursts (Mas-Hesse and Kunth 1991, Leitherer & Heckman 1995) which predict a variety of observable quantities, as well as the energetics that one is to expect from a stellar cluster, ...
... properties of stellar clusters, given an IMF and a stellar mass range. These are the so called synthesis models of starbursts (Mas-Hesse and Kunth 1991, Leitherer & Heckman 1995) which predict a variety of observable quantities, as well as the energetics that one is to expect from a stellar cluster, ...
AV_Paper1_TheAgeOfTheUniverse
... universe. This being the case, they reveal a great deal about the early universe plus the origin of galaxies and large scale structure in the universe. (NASA 3). By detecting polarized protons, WMAP was able to reveal the ionization history of the universe. Since ionized gas can interact with CMB ph ...
... universe. This being the case, they reveal a great deal about the early universe plus the origin of galaxies and large scale structure in the universe. (NASA 3). By detecting polarized protons, WMAP was able to reveal the ionization history of the universe. Since ionized gas can interact with CMB ph ...
Article “What Astronomers Do” (appendix C) one per student
... century later that an appropriate explanation was given for the mysterious lines seen in the stars' spectra. In 1859, the German physicist Gustav Kirchoff (in collaboration with the German chemist Robert Bunsen) suggested that Fraunhofer's lines were due to the presence of specific chemical elements ...
... century later that an appropriate explanation was given for the mysterious lines seen in the stars' spectra. In 1859, the German physicist Gustav Kirchoff (in collaboration with the German chemist Robert Bunsen) suggested that Fraunhofer's lines were due to the presence of specific chemical elements ...
Universe Discovery Guides: November — What is the Fate of the
... The universe has been constantly changing since it began about 14 billion years ago, and the ultimate fate of the universe is trillions of years in the future. By observing and collecting data today to construct models of the future, we can make predictions about how the universe will change in the ...
... The universe has been constantly changing since it began about 14 billion years ago, and the ultimate fate of the universe is trillions of years in the future. By observing and collecting data today to construct models of the future, we can make predictions about how the universe will change in the ...
Winter Interim Assessment Review - Aventura Waterways K-8
... • The sun is the center of the solar system , with many objects orbiting around it. • The force of gravity holds the solar system together. • Distances in the solar system are measured in astronomical units (AU). • One AU equals the average distance between Earth and the sun; about 150 million km. E ...
... • The sun is the center of the solar system , with many objects orbiting around it. • The force of gravity holds the solar system together. • Distances in the solar system are measured in astronomical units (AU). • One AU equals the average distance between Earth and the sun; about 150 million km. E ...
Readings for Prof. Michael J. Crowe`s Two Sessions on The
... these materials specifically for these two classes. In addition, I will show a PowerPoint presentation in the two classes drawing these materials together. Our topic is a challenging one, but it should be accessible to you. This unit will give you an up-to-date understanding of what may be the most ...
... these materials specifically for these two classes. In addition, I will show a PowerPoint presentation in the two classes drawing these materials together. Our topic is a challenging one, but it should be accessible to you. This unit will give you an up-to-date understanding of what may be the most ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.