Study Guide 4 Part A Outline
... o The Hubble Law implies Universe is expanding The expansion started at some definite time in the past (the Big Bang)Universe expands away from every galaxy. Every galaxy would see its own version of the Hubble Law. Quasars & Active Galactic Nuclei o Quasars and other active galaxies emit large ...
... o The Hubble Law implies Universe is expanding The expansion started at some definite time in the past (the Big Bang)Universe expands away from every galaxy. Every galaxy would see its own version of the Hubble Law. Quasars & Active Galactic Nuclei o Quasars and other active galaxies emit large ...
ppt
... (b) far away (Galactic) (c) really far away (extragalactic) (d) really, really far away (cosmological) ...
... (b) far away (Galactic) (c) really far away (extragalactic) (d) really, really far away (cosmological) ...
Galaxies and the Universe
... What are • Meteoroid—chunk of the different rock IN SPACE stages of a • Meteor—same ...
... What are • Meteoroid—chunk of the different rock IN SPACE stages of a • Meteor—same ...
How many galaxies are there in the Universe?
... This worksheet is adapted from an undergraduate exercise at http://cosmos.phy.tufts.edu/~zirbel/laboratories/HDF.pdf This picture was taken with the Hubble Space Telescope, and it is known as the Hubble ultra-deep field. The image results from an observation taken with the telescope trained on one t ...
... This worksheet is adapted from an undergraduate exercise at http://cosmos.phy.tufts.edu/~zirbel/laboratories/HDF.pdf This picture was taken with the Hubble Space Telescope, and it is known as the Hubble ultra-deep field. The image results from an observation taken with the telescope trained on one t ...
A-Temporal Universe
... to space and created space-time where time represents fourth coordinate. Let’s look at the relationship between physical time and linear time of Newton by carrying out an experiment. Take a ball and allow it to roll down an incline. You can perceive only the movement of the ball in space, but you ex ...
... to space and created space-time where time represents fourth coordinate. Let’s look at the relationship between physical time and linear time of Newton by carrying out an experiment. Take a ball and allow it to roll down an incline. You can perceive only the movement of the ball in space, but you ex ...
Answers - Physics and Astronomy
... QUESTION 1: Some recent measurements of the expansion rate of the universe suggest a problem with our old ideas about how the universe should be expanding. What is the problem? a. The measurements suggest that the universe may be shrinking rather than expanding. b. The measurements indicate that the ...
... QUESTION 1: Some recent measurements of the expansion rate of the universe suggest a problem with our old ideas about how the universe should be expanding. What is the problem? a. The measurements suggest that the universe may be shrinking rather than expanding. b. The measurements indicate that the ...
The Cosmic Microwave Background and the Big Bang Theory of the
... Remember, now, that the balloon has positive curvature, but the curvature is into the third dimension, which we 3-dimensional beings can visualize but is not part of the 2dimensional universe that is the surface of the balloon. As the balloon expands, the 2dimensional universe starts from a very sm ...
... Remember, now, that the balloon has positive curvature, but the curvature is into the third dimension, which we 3-dimensional beings can visualize but is not part of the 2dimensional universe that is the surface of the balloon. As the balloon expands, the 2dimensional universe starts from a very sm ...
Perimeter Dark Matter Online Game Worksheet #1 1. Match the
... 10. Dark matter is called “dark” because it: a. Only emits high-energy radiation such as X-rays and gamma rays. b. Only emits low-energy radiation such as microwaves and radio waves c. Reflects light but does not emit other radiation like stars do d. Does not emit or reflect any type of radiation or ...
... 10. Dark matter is called “dark” because it: a. Only emits high-energy radiation such as X-rays and gamma rays. b. Only emits low-energy radiation such as microwaves and radio waves c. Reflects light but does not emit other radiation like stars do d. Does not emit or reflect any type of radiation or ...
wk11
... • Highest temperature and lowest density of the three gaseous phases (hot, tenuous phase of the ISM): T ~ 103 to 106 K; n ~ 10-5 to 10-3 ions/cm3 • Weak degree of concentration to the plane of the Galactic disk: scale height z is a few kpc. Also seen in dense knots known as “HII regions” marking are ...
... • Highest temperature and lowest density of the three gaseous phases (hot, tenuous phase of the ISM): T ~ 103 to 106 K; n ~ 10-5 to 10-3 ions/cm3 • Weak degree of concentration to the plane of the Galactic disk: scale height z is a few kpc. Also seen in dense knots known as “HII regions” marking are ...
A Cosmic End: From the Earth to the Universe
... the accelerating expansion of the universe through observations of distant supernovae. – The Cosmic Microwave Background Radiation. It is the radiation released when the universe was about 380,000 years old. It was detected by Arno Penzias and Robert Wilson in 1965 and observed by NASA’s satellites ...
... the accelerating expansion of the universe through observations of distant supernovae. – The Cosmic Microwave Background Radiation. It is the radiation released when the universe was about 380,000 years old. It was detected by Arno Penzias and Robert Wilson in 1965 and observed by NASA’s satellites ...
The Copernican revolution
... and any group of stars ect. Describe your observations. You can observe that there are several small and unusually bright starlike that do not keep pace with stars. These objects are called planets. The moon and the sun also move at a different pace from the stars. From such observations, most peopl ...
... and any group of stars ect. Describe your observations. You can observe that there are several small and unusually bright starlike that do not keep pace with stars. These objects are called planets. The moon and the sun also move at a different pace from the stars. From such observations, most peopl ...
Energy - Monday Munchees
... A dark, unseen energy permeating space is pushing the universe apart just as Albert Einstein predicted it would in 1917, according to striking new measurements of distant exploding stars by the orbiting Hubble Space Telescope. The energy whose source remains unknown, was named the cosmological const ...
... A dark, unseen energy permeating space is pushing the universe apart just as Albert Einstein predicted it would in 1917, according to striking new measurements of distant exploding stars by the orbiting Hubble Space Telescope. The energy whose source remains unknown, was named the cosmological const ...
WINNING STORY - Atlantis Short Story Contest
... I was slowly floating, completely at ease, when I realized I had just gone past the two most conspicuous of the stars that make up the Orion constellation. I was taken aback by how large, mighty and bright they were. From people’s viewpoint on Earth, it looks like these celestial bodies are located ...
... I was slowly floating, completely at ease, when I realized I had just gone past the two most conspicuous of the stars that make up the Orion constellation. I was taken aback by how large, mighty and bright they were. From people’s viewpoint on Earth, it looks like these celestial bodies are located ...
Radiation: The Key to Understanding the Universe
... from the Milky Way, but the velocity of recession is directly proportional to the distance of the galaxy from us; this relation is named Hubble’s law after him. The only way this phenomenon can be explained assuming an isotropic and homogeneous universe is to assume that the fabric of the universe ( ...
... from the Milky Way, but the velocity of recession is directly proportional to the distance of the galaxy from us; this relation is named Hubble’s law after him. The only way this phenomenon can be explained assuming an isotropic and homogeneous universe is to assume that the fabric of the universe ( ...
Astronomy 401 Lecture 1 Overview of the Universe 1 Class overview
... distant stars might be less numerous or less luminous than nearby stars. • Assumed that universe is infinitely large. If universe extends to a maximum distance rmax λ, then only a fraction F ∼ rmax /λ of the sky will be covered with stars. Note that this result will also be found if the universe i ...
... distant stars might be less numerous or less luminous than nearby stars. • Assumed that universe is infinitely large. If universe extends to a maximum distance rmax λ, then only a fraction F ∼ rmax /λ of the sky will be covered with stars. Note that this result will also be found if the universe i ...
Spring 2014 Astronomy Exam Study Guide (Co-Taught)
... 4. How is looking at faraway objects equivalent to looking back in time? 5. What is the cosmic microwave background radiation a relic of? 6. How does Einstein’s concept of gravity differ from Newton’s concept of gravity? 7. Is there a center to the Universe? If so, where is it? 8. What is a light ye ...
... 4. How is looking at faraway objects equivalent to looking back in time? 5. What is the cosmic microwave background radiation a relic of? 6. How does Einstein’s concept of gravity differ from Newton’s concept of gravity? 7. Is there a center to the Universe? If so, where is it? 8. What is a light ye ...
Catherine Cress - CHPC Conference
... * Luminous red galaxies (for SALT cosmology expt using age-dating) * Infra-red bright galaxies which contaminate CMB experiments * Radio galaxies detectable with MeerKAT/SKA (AGN not HI) ...
... * Luminous red galaxies (for SALT cosmology expt using age-dating) * Infra-red bright galaxies which contaminate CMB experiments * Radio galaxies detectable with MeerKAT/SKA (AGN not HI) ...
Acquisition brochure - Big History Project
... Solar System (normally studied within geology and astronomy) and even the history of the Universe (cosmology). Clearly, Big History cannot rely just on written documents, as writing itself began just a few thousand years ago and became widespread just a century or two ago. So Big History uses whatev ...
... Solar System (normally studied within geology and astronomy) and even the history of the Universe (cosmology). Clearly, Big History cannot rely just on written documents, as writing itself began just a few thousand years ago and became widespread just a century or two ago. So Big History uses whatev ...
Beyond the Big Bang - Physics Department, Princeton University
... Douglas Adams, The Restaurant at the End of the Universe Theories of the universe have abounded throughout human history, but the last forty years have been exceptional. A single theory, the hot big bang picture, has dominated scientific and public discourse and has even become part of the standard ...
... Douglas Adams, The Restaurant at the End of the Universe Theories of the universe have abounded throughout human history, but the last forty years have been exceptional. A single theory, the hot big bang picture, has dominated scientific and public discourse and has even become part of the standard ...
Record: 1 Will dark energy TEAR the universe apart? Page 1 of 8
... could change over time or from one place to another in the universe. Vacuum energy gets its name from its role as the energy of "empty" space. Space is filled with a smooth energy density of virtual particles (particle-antiparticle pairs) that pop in and out of existence. Vacuum energy can be repres ...
... could change over time or from one place to another in the universe. Vacuum energy gets its name from its role as the energy of "empty" space. Space is filled with a smooth energy density of virtual particles (particle-antiparticle pairs) that pop in and out of existence. Vacuum energy can be repres ...
Core Theme 3: The Solar System
... realize that our present theories must be continually tested and modified because new theories frequently arise as we learn more through our observations. That is why most physicists and astronomers today are so inclined to accept the Big Bang Theory as the most plausible explanation for the origin ...
... realize that our present theories must be continually tested and modified because new theories frequently arise as we learn more through our observations. That is why most physicists and astronomers today are so inclined to accept the Big Bang Theory as the most plausible explanation for the origin ...
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.