LAST YEAR`S EXAM
... Q6 Estimate the temperature of the Universe at the time of decoupling if it assumed that decoupling occurs when the energy of a typical photon is the same as the ionization energy of hydrogen (13.6eV). Explain why this does not give the correct answer. Given that the microwave background was formed ...
... Q6 Estimate the temperature of the Universe at the time of decoupling if it assumed that decoupling occurs when the energy of a typical photon is the same as the ionization energy of hydrogen (13.6eV). Explain why this does not give the correct answer. Given that the microwave background was formed ...
Science, 4th 9 weeks
... Moon, Sun, other planets, asteroids, comets, stars, other solar systems and galaxies. ...
... Moon, Sun, other planets, asteroids, comets, stars, other solar systems and galaxies. ...
Survey of the Universe
... sea of low energy photons that fill the Universe The Cosmic Microwave Background Radiation • Hence they will reach the earth with a reduced energy • So particles with energy greater than 1019 eV must originate within 150 Million Light Years from earth In the Bottom Up scenario, we expect primary cos ...
... sea of low energy photons that fill the Universe The Cosmic Microwave Background Radiation • Hence they will reach the earth with a reduced energy • So particles with energy greater than 1019 eV must originate within 150 Million Light Years from earth In the Bottom Up scenario, we expect primary cos ...
All these different energies are classified according to wavelength
... blue or red? If a galaxy is moving away from earth, is it blue or red? ...
... blue or red? If a galaxy is moving away from earth, is it blue or red? ...
IDS 102
... This web page is designed to give everyone an idea of what our universe actually looks like. There are nine main maps on this web page, each one approximately ten to twenty times the scale of the previous one. The first map shows the nearest stars and then the other maps slowly expand out until we h ...
... This web page is designed to give everyone an idea of what our universe actually looks like. There are nine main maps on this web page, each one approximately ten to twenty times the scale of the previous one. The first map shows the nearest stars and then the other maps slowly expand out until we h ...
How big is the Universe? - Contemporary Science Issues
... • The Greeks and religions thought the universe was static, its size was constant. • Is this possible? • Gravity would cause the universe to collapse in on itself! • Do we see this happening? • The only solution to this was for the galaxies to be moving away from each other. The universe was expandi ...
... • The Greeks and religions thought the universe was static, its size was constant. • Is this possible? • Gravity would cause the universe to collapse in on itself! • Do we see this happening? • The only solution to this was for the galaxies to be moving away from each other. The universe was expandi ...
ISP 205 Final Exam Seating Chart SIT IN CORRECT ROW
... Slide 3: You must work your way out rung by rung, starting with the parallax method. How does the parallax method work? Pulsating variables used to get position of center of our galaxy + distance to M31, etc. What are pulsating variables and how are they used? Hubble’s law: v is measured from Dopple ...
... Slide 3: You must work your way out rung by rung, starting with the parallax method. How does the parallax method work? Pulsating variables used to get position of center of our galaxy + distance to M31, etc. What are pulsating variables and how are they used? Hubble’s law: v is measured from Dopple ...
Cosmic distance scale
... 1B11 Tully-Fisher relationship In 1977, Tully and Fisher found that the width of the 21cm emission line from a galaxy, was broader when the galaxy was brighter. ...
... 1B11 Tully-Fisher relationship In 1977, Tully and Fisher found that the width of the 21cm emission line from a galaxy, was broader when the galaxy was brighter. ...
Formation of Universe
... The Inflationary Theory: predicts that there was a sudden expansion when the universe was very young, more extreme than predicted by the big bang Considered to be a “revised” Big Band Theory universe expanded until about 10-35 seconds after the big bang when it became so cool that the forces of natu ...
... The Inflationary Theory: predicts that there was a sudden expansion when the universe was very young, more extreme than predicted by the big bang Considered to be a “revised” Big Band Theory universe expanded until about 10-35 seconds after the big bang when it became so cool that the forces of natu ...
Star Planet - Stony Brook Astronomy
... A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10,000 Earth years. C. The image of the supernova dispersing will not reach us for ano ...
... A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10,000 Earth years. C. The image of the supernova dispersing will not reach us for ano ...
ASTR 105 Intro Astronomy: The Solar System
... group; located 2.6 million ly away). The remnants from such explosions disperse in about 10,000 years. A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it dispers ...
... group; located 2.6 million ly away). The remnants from such explosions disperse in about 10,000 years. A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, but we will watch it dispers ...
Introduction to the Earth
... Black holes If the star was bigger than 30 times the mass of the sun The left over core becomes so dense that light can’t escape its gravity. Becomes a black hole. Grab any nearby matter and get bigger As matter falls in, it gives off x-rays. That’s how they find them ...
... Black holes If the star was bigger than 30 times the mass of the sun The left over core becomes so dense that light can’t escape its gravity. Becomes a black hole. Grab any nearby matter and get bigger As matter falls in, it gives off x-rays. That’s how they find them ...
Astro Review - Blank - Mayfield City Schools
... 3. ___d_ apparent shift toward shorter wavelengths of light when a luminous object moves toward the Viewer 5. ___a_ sum of all space, matter and energy 6. ___g_ matter not visible through current methods, but observable through gravitational interactions between galaxies 7. ___b_ apparent shift towa ...
... 3. ___d_ apparent shift toward shorter wavelengths of light when a luminous object moves toward the Viewer 5. ___a_ sum of all space, matter and energy 6. ___g_ matter not visible through current methods, but observable through gravitational interactions between galaxies 7. ___b_ apparent shift towa ...
10 Scientific Laws and Theories You Really Should Know
... empirical evidence and coming up with conclusions. – other scientists must be able to replicate the results if the experiment is destined to become the basis for a widely accepted law or theory. ...
... empirical evidence and coming up with conclusions. – other scientists must be able to replicate the results if the experiment is destined to become the basis for a widely accepted law or theory. ...
Doomed, Insignificant, and Ignorant
... • Einstein began to consider the Universe after completing the General Theory of Relativity in 1915 – describes how gravity works. – Space is malleable thus Einstein’s cosmology is in terms of spatial distortions ...
... • Einstein began to consider the Universe after completing the General Theory of Relativity in 1915 – describes how gravity works. – Space is malleable thus Einstein’s cosmology is in terms of spatial distortions ...
The Island Universe of Immanuel Kant - EU-HOU
... General relativity which, as we know very well now, is indeed a very “general” theory describing the interplay of space and mass/energy, predicts that the space is being curved by matter. Thus, the light ray is apparently bent in the vicinity of a big mass. Calculations show that to attain a measur ...
... General relativity which, as we know very well now, is indeed a very “general” theory describing the interplay of space and mass/energy, predicts that the space is being curved by matter. Thus, the light ray is apparently bent in the vicinity of a big mass. Calculations show that to attain a measur ...
File
... distance. This is called "Hubble's Law," named after Edwin Hubble (18891953) who discovered this phenomenon in 1929. This observation supports the expansion of the universe and suggests that the universe was once compacted. “Doppler red-shift” also provides evidence that galaxies are moving away fro ...
... distance. This is called "Hubble's Law," named after Edwin Hubble (18891953) who discovered this phenomenon in 1929. This observation supports the expansion of the universe and suggests that the universe was once compacted. “Doppler red-shift” also provides evidence that galaxies are moving away fro ...
i. introduction - davis.k12.ut.us
... c. Helium, synthesized from hydrogen during the first 3 minutes, is found in nearly uniform quantities throughout the Universe. 2. Many galaxies, such as our own Milky Way Galaxy, formed about 13 billion years ago. a. The oldest globular star clusters in galaxies appear to be this old. b. The oldest ...
... c. Helium, synthesized from hydrogen during the first 3 minutes, is found in nearly uniform quantities throughout the Universe. 2. Many galaxies, such as our own Milky Way Galaxy, formed about 13 billion years ago. a. The oldest globular star clusters in galaxies appear to be this old. b. The oldest ...
A glance at the beginning of the Universe
... Taking a closer view of the particular galaxies in our research for quite a small part of them the values got for the age of the Universe coincide with the generally acknowledged. That refers to the observed galaxy NGC 4258. / For NGC 4725, the number we got for the age of the Universe is 14 billion ...
... Taking a closer view of the particular galaxies in our research for quite a small part of them the values got for the age of the Universe coincide with the generally acknowledged. That refers to the observed galaxy NGC 4258. / For NGC 4725, the number we got for the age of the Universe is 14 billion ...
ppt
... reaches the same temperature as the stars that illuminate it (I’m not sure 17th century astronomers would have realised this) ...
... reaches the same temperature as the stars that illuminate it (I’m not sure 17th century astronomers would have realised this) ...
A brief history of cosmology Early ideas: astronomy
... reaches the same temperature as the stars that illuminate it (I’m not sure 17th century astronomers would have realised this) ...
... reaches the same temperature as the stars that illuminate it (I’m not sure 17th century astronomers would have realised this) ...