Chapter 30 Study Notes
... dwarf is a hot, extremely dense core collapses of matter left after a star _________. ...
... dwarf is a hot, extremely dense core collapses of matter left after a star _________. ...
2. Velocity dispersions of galaxies
... 7. Accelerated expanding Universe • Cosmology is the scientific study of the large scale properties of the Universe as a whole. • It endeavors to use the scientific method to understand the origin, evolution and ultimate fate of the entire Universe. • Cosmology involves the formation of theories or ...
... 7. Accelerated expanding Universe • Cosmology is the scientific study of the large scale properties of the Universe as a whole. • It endeavors to use the scientific method to understand the origin, evolution and ultimate fate of the entire Universe. • Cosmology involves the formation of theories or ...
Chapter105.ppt
... • Planets are made from planetesimals; originally the rings of gas and dusk surrounding a protostar. The Moon formed when another celestial body collided with the Earth to create a massive cloud of dust and debris that coalesced to form the Moon. ...
... • Planets are made from planetesimals; originally the rings of gas and dusk surrounding a protostar. The Moon formed when another celestial body collided with the Earth to create a massive cloud of dust and debris that coalesced to form the Moon. ...
Solutions - UC Berkeley Astronomy w
... The expectation was that the velocities should be decreasing (deceleration) because of the attractive force of gravity. In fact, what the supernova measurements showed was that the Universe is now accelerating, consistent with the repulsive aspect of the cosmological constant. Chapter 19 (14) page 4 ...
... The expectation was that the velocities should be decreasing (deceleration) because of the attractive force of gravity. In fact, what the supernova measurements showed was that the Universe is now accelerating, consistent with the repulsive aspect of the cosmological constant. Chapter 19 (14) page 4 ...
The New Cosmology: Our Expanding Universe
... are from us, the faster they move away. This is the Hubble Law; the ration between distance and velocity is 0.72, and is the so-called Hubble Constant. THE UNIVERSE IS EXPANDING The universe expands, like if you blow up a balloon, or set a raisin bread to rise. In the form of the raisins, you have c ...
... are from us, the faster they move away. This is the Hubble Law; the ration between distance and velocity is 0.72, and is the so-called Hubble Constant. THE UNIVERSE IS EXPANDING The universe expands, like if you blow up a balloon, or set a raisin bread to rise. In the form of the raisins, you have c ...
The New Cosmology: Our Expanding Universe
... are from us, the faster they move away. This is the Hubble Law; the ration between distance and velocity is 0.72, and is the so-called Hubble Constant. THE UNIVERSE IS EXPANDING The universe expands, like if you blow up a balloon, or set a raisin bread to rise. In the form of the raisins, you have c ...
... are from us, the faster they move away. This is the Hubble Law; the ration between distance and velocity is 0.72, and is the so-called Hubble Constant. THE UNIVERSE IS EXPANDING The universe expands, like if you blow up a balloon, or set a raisin bread to rise. In the form of the raisins, you have c ...
Dark matter
... The universe is flat on large scales; there isn’t enough mass to do the flattening, so there must be energy. If the energy emitted light, we’d have seen it by now, so it must be dark energy. ...
... The universe is flat on large scales; there isn’t enough mass to do the flattening, so there must be energy. If the energy emitted light, we’d have seen it by now, so it must be dark energy. ...
E:\2012-2013\SSU\PHS 207spring 2013\3rd test 4
... stars much older than 10 billion years and that others are 2nd and 3rd generation stars that could NOT have developed in just 10 billion years ...
... stars much older than 10 billion years and that others are 2nd and 3rd generation stars that could NOT have developed in just 10 billion years ...
PPT - Wayne State University Physics and Astronomy
... •In the intervening time, the universe has expanded, but this original energy can be seen in the cosmic microwave background. ...
... •In the intervening time, the universe has expanded, but this original energy can be seen in the cosmic microwave background. ...
Name________________ Astronomy I cans 1. What is the Big Bang
... galaxy compare to other galaxies? 11. How does our galaxy move? ...
... galaxy compare to other galaxies? 11. How does our galaxy move? ...
Higher Hubble`s Law and the Big Bang Answers
... We are certain the universe had a beginning. Presence of cosmic microwave background radiation. Doppler Effect The abundance of light elements such as Hydrogen and Helium. ...
... We are certain the universe had a beginning. Presence of cosmic microwave background radiation. Doppler Effect The abundance of light elements such as Hydrogen and Helium. ...
Hubblecast Episode 68: The Hubble time machine Visual notes 00
... 10. Hubble is still searching the distant Universe for clues about how the Universe formed, and how it has evolved. Several of Hubble’s surveys, for example CANDELS, CLASH, and GOODS, are scanning for distant supernova explosions, objects that are good celestial distance markers. Observations of dis ...
... 10. Hubble is still searching the distant Universe for clues about how the Universe formed, and how it has evolved. Several of Hubble’s surveys, for example CANDELS, CLASH, and GOODS, are scanning for distant supernova explosions, objects that are good celestial distance markers. Observations of dis ...
WHERE DO ELEMENTS COME FROM?
... • 1918 - some spiral nebula were observed to have “red shift” (few had “blue shift”) • Maybe red shift could be caused by “tired light” • Or red shift can be caused by object moving away The further distant, the faster it move away! ...
... • 1918 - some spiral nebula were observed to have “red shift” (few had “blue shift”) • Maybe red shift could be caused by “tired light” • Or red shift can be caused by object moving away The further distant, the faster it move away! ...
1. a) Astronomers use the parallax method to measure
... b) Instead of the parallax method, we use the standard candle method to measure the distance to stars in other galaxies. In particular, we use the standard candle method to measure the distances to Cepheid variable stars in other galaxies. What is special about Cepheid variable stars that makes them ...
... b) Instead of the parallax method, we use the standard candle method to measure the distance to stars in other galaxies. In particular, we use the standard candle method to measure the distances to Cepheid variable stars in other galaxies. What is special about Cepheid variable stars that makes them ...
The “Big Bang” Theory
... and is part of all life as we know it. • It may have been lightning that made these compounds become “alive”. • Water was necessary for life to evolve and this may have come from comets • Oxygen in the atmosphere was given off by early organisms that were very abundant ...
... and is part of all life as we know it. • It may have been lightning that made these compounds become “alive”. • Water was necessary for life to evolve and this may have come from comets • Oxygen in the atmosphere was given off by early organisms that were very abundant ...
Theory of the Infinite Universe
... Stars provide vast amounts of energy for millions of years through the process of nuclear fusion. Nuclear fusion occurs when two elements are fused together to form a heavier element. This process r ...
... Stars provide vast amounts of energy for millions of years through the process of nuclear fusion. Nuclear fusion occurs when two elements are fused together to form a heavier element. This process r ...
Review 1 Solutions
... 7. Jupiter’s moon Callisto has lots and lots of craters, whereas another moon, Io, has almost none. What does this tell us about Io and Callisto? Io has a younger surface than Callisto. From other observations, we know this is because of volcanic activity on Io that constantly replenishes its surfac ...
... 7. Jupiter’s moon Callisto has lots and lots of craters, whereas another moon, Io, has almost none. What does this tell us about Io and Callisto? Io has a younger surface than Callisto. From other observations, we know this is because of volcanic activity on Io that constantly replenishes its surfac ...
Astronomy Quiz #1 Answers
... 7. What are the two important discoveries made by Edwin Hubble? -many galaxies existed beyond the Milky Way -almost all galaxies are moving away from each other ...
... 7. What are the two important discoveries made by Edwin Hubble? -many galaxies existed beyond the Milky Way -almost all galaxies are moving away from each other ...
Lecture082602 - Florida State University
... The Universe is isotropic – it looks the same in all directions The Universe is homogeneous – any large volume looks the same as any other large volume at the same distance ...
... The Universe is isotropic – it looks the same in all directions The Universe is homogeneous – any large volume looks the same as any other large volume at the same distance ...
SUFFOLK COUNTY COMMUNITY COLLEGE
... It is a introduction to astronomical objects and events that are associated with extremely high-energy such as Neutron stars, Black holes, and Cosmology. Throughout the course emphasis will be placed on the both of Albert Einstein’s Special and General Theories of Relativity ...
... It is a introduction to astronomical objects and events that are associated with extremely high-energy such as Neutron stars, Black holes, and Cosmology. Throughout the course emphasis will be placed on the both of Albert Einstein’s Special and General Theories of Relativity ...
Universe and Galaxy Short Study Guide
... 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 ...
Our Place In the Universe
... the Milky Way Galaxy, which is a member of the Local Group of galaxies in the Local Supercluster. ...
... the Milky Way Galaxy, which is a member of the Local Group of galaxies in the Local Supercluster. ...
Physical cosmology
Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate. For most of human history, it was a branch of metaphysics and religion. Cosmology as a science originated with the Copernican principle, which implies that celestial bodies obey identical physical laws to those on Earth, and Newtonian mechanics, which first allowed us to understand those physical laws.Physical cosmology, as it is now understood, began with the development in 1915 of Albert Einstein's general theory of relativity, followed by major observational discoveries in the 1920s: first, Edwin Hubble discovered that the universe contains a huge number of external galaxies beyond our own Milky Way; then, work by Vesto Slipher and others showed that the universe is expanding. These advances made it possible to speculate about the origin of the universe, and allowed the establishment of the Big Bang Theory, by Georges Lemaitre, as the leading cosmological model. A few researchers still advocate a handful of alternative cosmologies; however, most cosmologists agree that the Big Bang theory explains the observations better.Dramatic advances in observational cosmology since the 1990s, including the cosmic microwave background, distant supernovae and galaxy redshift surveys, have led to the development of a standard model of cosmology. This model requires the universe to contain large amounts of dark matter and dark energy whose nature is currently not well understood, but the model gives detailed predictions that are in excellent agreement with many diverse observations.Cosmology draws heavily on the work of many disparate areas of research in theoretical and applied physics. Areas relevant to cosmology include particle physics experiments and theory, theoretical and observational astrophysics, general relativity, quantum mechanics, and plasma physics.