
Type Ia supernovae and the ESSENCE supernova survey
... What was needed was a systematic search carried out on the same telescope, with the same camera, and with the same filters. ...
... What was needed was a systematic search carried out on the same telescope, with the same camera, and with the same filters. ...
Universe and Stars Project Final Due Date
... Include at least 2 video clips, no longer than 8 min each. (25pts) Your powerpoint slides must address the following topics ( 100pts): 1. Describe how the Universe was formed and provide at least 3 pieces of evidence of the Big Bang. ( LT A) Make sure you include what red shift and steady state mean ...
... Include at least 2 video clips, no longer than 8 min each. (25pts) Your powerpoint slides must address the following topics ( 100pts): 1. Describe how the Universe was formed and provide at least 3 pieces of evidence of the Big Bang. ( LT A) Make sure you include what red shift and steady state mean ...
Lecture010704 - Florida State University
... There is nothing special about our place in the Universe The Universe is isotropic ...
... There is nothing special about our place in the Universe The Universe is isotropic ...
Sample Exam 3
... D) Stars don’t move, so we can’t measure a velocity for them. E) It can be used to find the distances of nearby stars. 22) Observations today suggest that spacetime in our universe is closest to being A) curved with positive curvature. C) curved with neutral curvature. B) curved with negative curvat ...
... D) Stars don’t move, so we can’t measure a velocity for them. E) It can be used to find the distances of nearby stars. 22) Observations today suggest that spacetime in our universe is closest to being A) curved with positive curvature. C) curved with neutral curvature. B) curved with negative curvat ...
transparencies - Rencontres de Moriond
... • The work presented here derives from many papers on EM-GW interactions published in properly peer reviewed journals since the 1970’s • This work has no connection with (and does not support or endorse) ideas published by the HFGW group ...
... • The work presented here derives from many papers on EM-GW interactions published in properly peer reviewed journals since the 1970’s • This work has no connection with (and does not support or endorse) ideas published by the HFGW group ...
Last time we left off at hydrogen and helium, because that`s all that
... Last time we left off at hydrogen and helium, because that’s all that formed for the first hundred million years of the universe except for dribbly little bits of lithium and beryllium. As this isn’t enough to get complicated molecules, we must look elsewhere for the stuff of life. We’ll do our sear ...
... Last time we left off at hydrogen and helium, because that’s all that formed for the first hundred million years of the universe except for dribbly little bits of lithium and beryllium. As this isn’t enough to get complicated molecules, we must look elsewhere for the stuff of life. We’ll do our sear ...
Our Expanding Universe
... At this first instant of time and space, the Universe was extremely hot, and energy was spreading outward very quickly. As the Universe cooled, energy began turning into matter—mainly hydrogen. Over hundreds of millions of years, this matter formed clumps, which eventually formed the stars and galax ...
... At this first instant of time and space, the Universe was extremely hot, and energy was spreading outward very quickly. As the Universe cooled, energy began turning into matter—mainly hydrogen. Over hundreds of millions of years, this matter formed clumps, which eventually formed the stars and galax ...
The Ever Expanding Universe
... The distances to stars and galaxies are approximate measures that are often revised especially if they are far away. Our understanding of the Universe depends upon accurate mapping of every structure in the Universe and was begun by the Greeks, Persians and Indians thousand of years ago! Measuring t ...
... The distances to stars and galaxies are approximate measures that are often revised especially if they are far away. Our understanding of the Universe depends upon accurate mapping of every structure in the Universe and was begun by the Greeks, Persians and Indians thousand of years ago! Measuring t ...
A glance at the beginning of the Universe
... 2. The average number for the age of the Universe / 25±4 billion years / is close to the generally accepted one /13,73±0,12 billion years, based on observations of the cosmic microwave background (CMB) radiation, according to the WMAP data from 2013/. It is higher than the age of the oldest star /13 ...
... 2. The average number for the age of the Universe / 25±4 billion years / is close to the generally accepted one /13,73±0,12 billion years, based on observations of the cosmic microwave background (CMB) radiation, according to the WMAP data from 2013/. It is higher than the age of the oldest star /13 ...
Bruemmer-Dark Matter
... There are no purely observational facts about the heavenly bodies. Astronomical measurements are, without exception, measurements of phenomena occurring in a terrestrial observatory or station; it is by theory they are translated into knowledge of a universe outside. ...
... There are no purely observational facts about the heavenly bodies. Astronomical measurements are, without exception, measurements of phenomena occurring in a terrestrial observatory or station; it is by theory they are translated into knowledge of a universe outside. ...
Astronomy Unit Outline
... investigate and analyse the properties of the universe, particularly the evolution and properties of stars, in both qualitative and quantitative terms; ...
... investigate and analyse the properties of the universe, particularly the evolution and properties of stars, in both qualitative and quantitative terms; ...
Course Expectations
... 9. The difference between active and inactive galaxies 10. Hubble’s Law is used to calculate the distance to other galaxies 11. The farther away the galaxy is the faster it is moving 12. The Big Bang Theory is currently the most widely accepted and supported explanation for the formation of our univ ...
... 9. The difference between active and inactive galaxies 10. Hubble’s Law is used to calculate the distance to other galaxies 11. The farther away the galaxy is the faster it is moving 12. The Big Bang Theory is currently the most widely accepted and supported explanation for the formation of our univ ...
chapter_5_lecture_notes
... This small object suddenly expanded outward, creating the beginning of space and time. As the mixture of matter continued expanding outward and cooling, large quantities of radiation were emitted into ...
... This small object suddenly expanded outward, creating the beginning of space and time. As the mixture of matter continued expanding outward and cooling, large quantities of radiation were emitted into ...
Document
... Do you need to learn all of characteristics on RTB’s fine-tuned list to communicate this? No. I have found three characteristics that eliminate all life in the Milky Way and universe, other than earth. 1) Life requires a very stable burning star (sun). To date astronomers have cataloged about 2,500, ...
... Do you need to learn all of characteristics on RTB’s fine-tuned list to communicate this? No. I have found three characteristics that eliminate all life in the Milky Way and universe, other than earth. 1) Life requires a very stable burning star (sun). To date astronomers have cataloged about 2,500, ...
Eddington`s Theory of Gravity and Its Progeny
... found if > 0 where one can show that H 2 ða aB Þ2 , which means that lnða=aB 1Þ / t tB . In this case there is no bounce; if we wind back the clock, the energy density will reach a point (corresponding to about B =2 as can be seen from Fig. 1) in which accelerated expansion kicks in. As a ...
... found if > 0 where one can show that H 2 ða aB Þ2 , which means that lnða=aB 1Þ / t tB . In this case there is no bounce; if we wind back the clock, the energy density will reach a point (corresponding to about B =2 as can be seen from Fig. 1) in which accelerated expansion kicks in. As a ...
Introduction - WordPress.com
... Astrology is NOT a Science • Seeks to discover “hidden knowledge” by the interpretation of omens (like reading tea ...
... Astrology is NOT a Science • Seeks to discover “hidden knowledge” by the interpretation of omens (like reading tea ...
Introduction - MSD of Martinsville
... Astrology is NOT a Science • Seeks to discover “hidden knowledge” by the interpretation of omens (like reading tea ...
... Astrology is NOT a Science • Seeks to discover “hidden knowledge” by the interpretation of omens (like reading tea ...
Position in Solar System ppt
... In short, after the Big Bang, Further away from the center of this mass of in similar the universe ways. pulled Giant clouds in material of dust because andwhere gas the they star was forming, there were smaller clumps dense clouds ofFinally, gas and dust began had to more collapse gravity. under th ...
... In short, after the Big Bang, Further away from the center of this mass of in similar the universe ways. pulled Giant clouds in material of dust because andwhere gas the they star was forming, there were smaller clumps dense clouds ofFinally, gas and dust began had to more collapse gravity. under th ...
Chapter1.pdf
... view that the Earth was the most important place in the Universe and human beings the Universe’s most important creatures. (Also, at the time, most people believe the Earth was flat, not spherical, and that if you sailed on the ocean too far in one direction you would fall off the edge). • For the n ...
... view that the Earth was the most important place in the Universe and human beings the Universe’s most important creatures. (Also, at the time, most people believe the Earth was flat, not spherical, and that if you sailed on the ocean too far in one direction you would fall off the edge). • For the n ...
25 centuries ago, the ancients came up with theories such as:
... b) An exploding star c) A massive collection of stars d) Another universe How many planets are in our solar system? a) 12 b) 4 c) 10 d) 9 e) 8 How can black holes be detected? a) We listen for them b) We detect their gravitational effects on other stars c) We can see them through telescopes d) We c ...
... b) An exploding star c) A massive collection of stars d) Another universe How many planets are in our solar system? a) 12 b) 4 c) 10 d) 9 e) 8 How can black holes be detected? a) We listen for them b) We detect their gravitational effects on other stars c) We can see them through telescopes d) We c ...
THE COSMIC DANCE
... colliding with earth. Asteroid 6 miles wide. Wiped out about 75% of life on the earth. ...
... colliding with earth. Asteroid 6 miles wide. Wiped out about 75% of life on the earth. ...
P1 - Foundation
... Earth was the centre of the Universe. This was called the geocentric model. The evidence for this model came from observations of the sky using the naked eye. After the telescope was invented, astronomers quickly gathered evidence which showed that the geocentric model is not correct. Describe the e ...
... Earth was the centre of the Universe. This was called the geocentric model. The evidence for this model came from observations of the sky using the naked eye. After the telescope was invented, astronomers quickly gathered evidence which showed that the geocentric model is not correct. Describe the e ...
PHYSICS 113 Assignment #9 SOLUTIONS Chapter 17 13. Starting
... particles in the gas causes the gas to radiate energy at all wavelengths in the EM spectrum. It is this radiation from the hot gas that we see as the tremendous outpouring of energy from quasars. ...
... particles in the gas causes the gas to radiate energy at all wavelengths in the EM spectrum. It is this radiation from the hot gas that we see as the tremendous outpouring of energy from quasars. ...
Flatness problem

The flatness problem (also known as the oldness problem) is a cosmological fine-tuning problem within the Big Bang model of the universe. Such problems arise from the observation that some of the initial conditions of the universe appear to be fine-tuned to very 'special' values, and that a small deviation from these values would have had massive effects on the nature of the universe at the current time.In the case of the flatness problem, the parameter which appears fine-tuned is the density of matter and energy in the universe. This value affects the curvature of space-time, with a very specific critical value being required for a flat universe. The current density of the universe is observed to be very close to this critical value. Since the total density departs rapidly from the critical value over cosmic time, the early universe must have had a density even closer to the critical density, departing from it by one part in 1062 or less. This leads cosmologists to question how the initial density came to be so closely fine-tuned to this 'special' value.The problem was first mentioned by Robert Dicke in 1969. The most commonly accepted solution among cosmologists is cosmic inflation, the idea that the universe went through a brief period of extremely rapid expansion in the first fraction of a second after the Big Bang; along with the monopole problem and the horizon problem, the flatness problem is one of the three primary motivations for inflationary theory.