Astronomy Curriculum
... Astronomy is an observational science that deals with the origin, evolution, and interactions of our universe, galaxies, our solar system, and the various objects found therein. Astronomy is a high level elective, with elements of physics and mathematics, intended for those students who wish to furt ...
... Astronomy is an observational science that deals with the origin, evolution, and interactions of our universe, galaxies, our solar system, and the various objects found therein. Astronomy is a high level elective, with elements of physics and mathematics, intended for those students who wish to furt ...
Andrew Sonnenschein: The level of poetry…
... When we look at the sun through dark glasses, we see a ball of fire that has a precise size, and yet there is gas around it. AG: If on a different scale I could stand at the centre of the sky, at the centre of the Universe, and see the sun, and see the stars, clearly there would be a distance betwee ...
... When we look at the sun through dark glasses, we see a ball of fire that has a precise size, and yet there is gas around it. AG: If on a different scale I could stand at the centre of the sky, at the centre of the Universe, and see the sun, and see the stars, clearly there would be a distance betwee ...
The James Webb Space Telescope: A Vision for the Future
... These two close-up images by the Hubble Space Telescope reveal how different the star-forming nebula NGC 2174 appears in visible and near-infrared light. On the top is a visible-light view, revealing a rugged landscape, with ridges and tall pillars of gas. The near-infrared image below shows how inf ...
... These two close-up images by the Hubble Space Telescope reveal how different the star-forming nebula NGC 2174 appears in visible and near-infrared light. On the top is a visible-light view, revealing a rugged landscape, with ridges and tall pillars of gas. The near-infrared image below shows how inf ...
Stars
... together by gravity The Hurtzsprung-Russel relates brightness to temperature of stars There are three main classifications of stars There are three models for the origin of the universe, the leading model is the big ...
... together by gravity The Hurtzsprung-Russel relates brightness to temperature of stars There are three main classifications of stars There are three models for the origin of the universe, the leading model is the big ...
The 2dF QSO Redshift Survey
... QSO candidates selected from multiband optical images Identity confirmed (+ redshift measured) by spectroscopy At z<2.5 QSOs typically blue stellar objects Main contaminants include stars (inc. WDs) + NL galaxies At low z, host galaxy may make QSO appear extended/redder z>2.5 Ly forest makes QSO re ...
... QSO candidates selected from multiband optical images Identity confirmed (+ redshift measured) by spectroscopy At z<2.5 QSOs typically blue stellar objects Main contaminants include stars (inc. WDs) + NL galaxies At low z, host galaxy may make QSO appear extended/redder z>2.5 Ly forest makes QSO re ...
Option E Sum Pages
... near us, we can measure the max which with Wiens law gives the temperature T and observe the chemical absorption lines of a more distant star, and place it in the appropriate spectral class, or on the horizontal axis of the H-R diagram. If its chemical composition fits the main sequence stars of th ...
... near us, we can measure the max which with Wiens law gives the temperature T and observe the chemical absorption lines of a more distant star, and place it in the appropriate spectral class, or on the horizontal axis of the H-R diagram. If its chemical composition fits the main sequence stars of th ...
Beyond Our Solar System
... • Galactic Interactions – Collisions between galaxies – Driven by one galaxy’s gravity disturbing another – A large galaxy may engulf a dwarf satellite galaxy – Two dwarf satellite galaxies are currently merging with the Milky Way ...
... • Galactic Interactions – Collisions between galaxies – Driven by one galaxy’s gravity disturbing another – A large galaxy may engulf a dwarf satellite galaxy – Two dwarf satellite galaxies are currently merging with the Milky Way ...
answers2006_07_BC
... This mass is confined within a volume smaller than the solar system (from the orbits and evidence of sudden flares in x-ray and radio). Therefore it must be a black hole (anything else of this mass would be much larger) ...
... This mass is confined within a volume smaller than the solar system (from the orbits and evidence of sudden flares in x-ray and radio). Therefore it must be a black hole (anything else of this mass would be much larger) ...
Unit P1 - Universal Physics 2
... Our sun is believed to be a “______ ______ star” – this is because it contains some __________ elements along with hydrogen and ________. These heavier elements would have been the products of a previous star that have been thrown out by a ________. These heavier elements are also found on planets, ...
... Our sun is believed to be a “______ ______ star” – this is because it contains some __________ elements along with hydrogen and ________. These heavier elements would have been the products of a previous star that have been thrown out by a ________. These heavier elements are also found on planets, ...
Section 6 The Expanding Universe The Doppler Effect
... universe (originally suggested by Friedmann, but advocated by Einstein and Richard Tolman) and Fritz Zwicky’s tired light hypothesis. After World War II, two distinct possibilities emerged. One was Fred Hoyle’s steady-state model, whereby new matter would be created as the universe seemed to expand. ...
... universe (originally suggested by Friedmann, but advocated by Einstein and Richard Tolman) and Fritz Zwicky’s tired light hypothesis. After World War II, two distinct possibilities emerged. One was Fred Hoyle’s steady-state model, whereby new matter would be created as the universe seemed to expand. ...
The Origin of Matter-Antimatter Asymmetry Ning Bao Prashant Saraswat
... momentum of a particle in χ space Consider a potential with flat directions: ...
... momentum of a particle in χ space Consider a potential with flat directions: ...
ppt file - Particle Theory
... Axion Dark Matter eXperiment (ADMX) @ LLNL Upgrade based on quantum-limited SQUID amplifiers ...
... Axion Dark Matter eXperiment (ADMX) @ LLNL Upgrade based on quantum-limited SQUID amplifiers ...
The Big Bang
... • How is the initial state of the universe different from a black hole? • Did the universe start expanding immediately after the big bang? • What started the big bang anyway? • Will the universe expand forever? • Will the universe ever completely cool down? ...
... • How is the initial state of the universe different from a black hole? • Did the universe start expanding immediately after the big bang? • What started the big bang anyway? • Will the universe expand forever? • Will the universe ever completely cool down? ...
List of Illustrations
... Invention of the vacuum tube – ‘Cathode rays’ and ‘canal rays’ – William Crookes: the Crookes tube and the corpuscular interpretation of cathode rays – Cathode rays are shown to move far slower than light – The discovery of the electron – Wilhelm Röntgen & the discovery of X-rays – Radioactivity; Be ...
... Invention of the vacuum tube – ‘Cathode rays’ and ‘canal rays’ – William Crookes: the Crookes tube and the corpuscular interpretation of cathode rays – Cathode rays are shown to move far slower than light – The discovery of the electron – Wilhelm Röntgen & the discovery of X-rays – Radioactivity; Be ...
Slide 1
... supernova is an exploding star that can become three times as bright as the sun. When a supernova occurs. All the dust particles, gas, and Dupree collect up. Creating a Nebula. These Nebulas can create many stars like our sun. Some stars can be brighter then others. This is an example of a Supernova ...
... supernova is an exploding star that can become three times as bright as the sun. When a supernova occurs. All the dust particles, gas, and Dupree collect up. Creating a Nebula. These Nebulas can create many stars like our sun. Some stars can be brighter then others. This is an example of a Supernova ...
PDF sample
... basic elements. The idea was basically correct; it was the details that were wrong. Their ‘earth, air, fire, and water’ are made of what today we know as the chemical elements. Pure water is made from two: hydrogen and oxygen. Air is largely made from nitrogen and oxygen with a dash of carbon and arg ...
... basic elements. The idea was basically correct; it was the details that were wrong. Their ‘earth, air, fire, and water’ are made of what today we know as the chemical elements. Pure water is made from two: hydrogen and oxygen. Air is largely made from nitrogen and oxygen with a dash of carbon and arg ...
paper - Dimi Chakalov`s web site
... define their energy with reference to the "background" or undisturbed geometry, which is there before the wave arrives and after it passes (emphasis added – D.C.)." [9, p. 317] Any usage of temporal (‘before’ and ‘after’) and spatial notions to distinguish between GWs (Manhattan) and the "background ...
... define their energy with reference to the "background" or undisturbed geometry, which is there before the wave arrives and after it passes (emphasis added – D.C.)." [9, p. 317] Any usage of temporal (‘before’ and ‘after’) and spatial notions to distinguish between GWs (Manhattan) and the "background ...
Edwin Hubble (1889
... smaller, were part of our galaxy. His opponent, Heber Curtis, argued that the galaxy could be as large as Shapley said, yet still be only one of many island universes, if it happened by chance to be several times larger than the average. Ultimately observations would prove Curtis correct, but in 192 ...
... smaller, were part of our galaxy. His opponent, Heber Curtis, argued that the galaxy could be as large as Shapley said, yet still be only one of many island universes, if it happened by chance to be several times larger than the average. Ultimately observations would prove Curtis correct, but in 192 ...
Non-standard cosmology
A non-standard cosmology is any physical cosmological model of the universe that has been, or still is, proposed as an alternative to the Big Bang model of standard physical cosmology. In the history of cosmology, various scientists and researchers have disputed parts or all of the Big Bang due to a rejection or addition of fundamental assumptions needed to develop a theoretical model of the universe. From the 1940s to the 1960s, the astrophysical community was equally divided between supporters of the Big Bang theory and supporters of a rival steady state universe. It was not until advances in observational cosmology in the late 1960s that the Big Bang would eventually become the dominant theory, and today there are few active researchers who dispute it.The term non-standard is applied to any cosmological theory that does not conform to the scientific consensus, but is not used in describing alternative models where no consensus has been reached, and is also used to describe theories that accept a ""big bang"" occurred but differ as to the detailed physics of the origin and evolution of the universe. Because the term depends on the prevailing consensus, the meaning of the term changes over time. For example, hot dark matter would not have been considered non-standard in 1990, but would be in 2010. Conversely, a non-zero cosmological constant resulting in an accelerating universe would have been considered non-standard in 1990, but is part of the standard cosmology in 2010.