Big bang galaxies stars Name: Date: 1. The diagram below
... Base your answer(s) to the following question(s) on the passage below and on your knowledge of Earth science. Cosmic Microwave Background Radiation In the 1920s, Edwin Hubble's discovery of a pattern in the red shift of light from galaxies moving away from Earth led to the theory of an expanding uni ...
... Base your answer(s) to the following question(s) on the passage below and on your knowledge of Earth science. Cosmic Microwave Background Radiation In the 1920s, Edwin Hubble's discovery of a pattern in the red shift of light from galaxies moving away from Earth led to the theory of an expanding uni ...
Astronomy 401 Lecture 1 Overview of the Universe 1 Class overview
... where v is the radial velocity of the galaxy. Therefore we can get the Hubble constant from dividing velocity by distance, and it has the units km s−1 Mpc−1 (note that the actual units are inverse time). Hubble’s original estimate was H0 = 500 km s−1 Mpc−1 , but he was severely underestimating the d ...
... where v is the radial velocity of the galaxy. Therefore we can get the Hubble constant from dividing velocity by distance, and it has the units km s−1 Mpc−1 (note that the actual units are inverse time). Hubble’s original estimate was H0 = 500 km s−1 Mpc−1 , but he was severely underestimating the d ...
The galaxies that host powerful radio sources
... Angular resolution – comparable to the best optical imaging. No more “blobs at high redshift” – will be able to map the distribution of gas and dust in forming galaxies. ...
... Angular resolution – comparable to the best optical imaging. No more “blobs at high redshift” – will be able to map the distribution of gas and dust in forming galaxies. ...
Tour of the Universe
... the age of the universe can be estimated using Hubble’s law Hubble’s law: v = H od Where v= velocity of recession (km/s) d= distance of the galaxy from Earth H o = the constant of proportionality between the recessional velocity of galaxies and their distance from Earth (about 70 km s−1 M ...
... the age of the universe can be estimated using Hubble’s law Hubble’s law: v = H od Where v= velocity of recession (km/s) d= distance of the galaxy from Earth H o = the constant of proportionality between the recessional velocity of galaxies and their distance from Earth (about 70 km s−1 M ...
Uranometria 2000.0`s Dark Nebulae Database
... Milky Way. On the other hand, the well-known Horsehead Nebula (cataloged as Barnard 33 on Chart 116) is much more typical. It is a difficult object because of its small size and because it lies in front of a rather faint background object, emission nebula IC 434. In this case the resulting contrast ...
... Milky Way. On the other hand, the well-known Horsehead Nebula (cataloged as Barnard 33 on Chart 116) is much more typical. It is a difficult object because of its small size and because it lies in front of a rather faint background object, emission nebula IC 434. In this case the resulting contrast ...
Historical Overview of the Universe
... astronomy and physics. Cosmology does not claim to possess final answers and may be better described as the study of models of the Universe or world models. Successful world models have to be in line with the available astronomical, physical, and other relevant scientific measurements and observatio ...
... astronomy and physics. Cosmology does not claim to possess final answers and may be better described as the study of models of the Universe or world models. Successful world models have to be in line with the available astronomical, physical, and other relevant scientific measurements and observatio ...
Goals of the day Clickers Order of Magnitude Astronomy
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
... A radio message from outer space arrived today which was sent from planet Buff on the day you were born. The friendly aliens sending you the birthday message live: ...
light energy
... Your eyes don’t know what colour it “should” be, it can only interpret the waves it sees – it can’t tell the difference between “red” and “s t r e t c h e d green” ...
... Your eyes don’t know what colour it “should” be, it can only interpret the waves it sees – it can’t tell the difference between “red” and “s t r e t c h e d green” ...
Galaxy - Bama.ua.edu
... v, from center of an expanding sphere of galaxies of radius, r, is attracted to the sphere center determined by r, sphere density, ρ, and gravitational constant, G. • Critical density depends only on current local Hubble constant H=v/r • ρcritical = 3H2/ [8Gπ] ...
... v, from center of an expanding sphere of galaxies of radius, r, is attracted to the sphere center determined by r, sphere density, ρ, and gravitational constant, G. • Critical density depends only on current local Hubble constant H=v/r • ρcritical = 3H2/ [8Gπ] ...
Where do you find yourself now??
... the stars are packed together much closer than they are where we live. Notice also the presence of small globular clusters of stars which lie well outside the plane of the Galaxy, and notice too the presence of a nearby dwarf galaxy - the Sagittarius dwarf – which is slowly being swallowed up by our ...
... the stars are packed together much closer than they are where we live. Notice also the presence of small globular clusters of stars which lie well outside the plane of the Galaxy, and notice too the presence of a nearby dwarf galaxy - the Sagittarius dwarf – which is slowly being swallowed up by our ...
Where is the Solar System in the Universe?
... Measurement in Astronomy Scientists find it hard to work with the measurements we use on earth, like kilometers and miles, because the distances are so great it is hard for us to comprehend such enormous numbers. ...
... Measurement in Astronomy Scientists find it hard to work with the measurements we use on earth, like kilometers and miles, because the distances are so great it is hard for us to comprehend such enormous numbers. ...
The Life of a Star - Department of Physics and Astronomy
... halfway across the galaxy. But you mo-rons must not have bothered to read the fine print that said that you’d explode in seven million years! And if you did read it then you’re even stupider than you look. Seven million is not a long time!” » Eric Schulman [A Briefer History of Time] ...
... halfway across the galaxy. But you mo-rons must not have bothered to read the fine print that said that you’d explode in seven million years! And if you did read it then you’re even stupider than you look. Seven million is not a long time!” » Eric Schulman [A Briefer History of Time] ...
WEB RESOURCES FOR PHYS 4D
... Binary Stars: This site provides links to both basic and advanced theory governing binary stars. The site also includes a lecture on binary stars, some student problems, and several Excel Spreadsheets that model binary star behavior. ...
... Binary Stars: This site provides links to both basic and advanced theory governing binary stars. The site also includes a lecture on binary stars, some student problems, and several Excel Spreadsheets that model binary star behavior. ...
Forming disk galaxies in magneto-hydro
... resembles our own Milky Way. It has the right stellar mass for its dark matter halo mass of about 1012 solar masses, forms a disk of the right scale length, and the relation between mean age of stars and the total stellar mass of the disk is consistent with observations, too. Also, the predicted con ...
... resembles our own Milky Way. It has the right stellar mass for its dark matter halo mass of about 1012 solar masses, forms a disk of the right scale length, and the relation between mean age of stars and the total stellar mass of the disk is consistent with observations, too. Also, the predicted con ...
Essential Questions
... including planets, their moons, and asteroids that are held in orbit around the sun by its gravitational pull on them. (MS-ESS1-2), (MSESS1-3) The model of the solar system can explain eclipses of the sun and the moon. Earth’s spin axis is fixed in direction over the short-term but tilted relative t ...
... including planets, their moons, and asteroids that are held in orbit around the sun by its gravitational pull on them. (MS-ESS1-2), (MSESS1-3) The model of the solar system can explain eclipses of the sun and the moon. Earth’s spin axis is fixed in direction over the short-term but tilted relative t ...
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
... Astronomers see a bright supernova explode in the Andromeda galaxy (the nearest big galaxy in the local 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 10,00 ...
... Astronomers see a bright supernova explode in the Andromeda galaxy (the nearest big galaxy in the local 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 10,00 ...
THE DOPPLER EFFECT
... speak of the Big Bang theory was a description of the very first event in the universe, which caused everything after it. Although it is true that time may have had a beginning (Einstein's theory of general relativity admits such a possibility), the methods of science can only work within a certain ...
... speak of the Big Bang theory was a description of the very first event in the universe, which caused everything after it. Although it is true that time may have had a beginning (Einstein's theory of general relativity admits such a possibility), the methods of science can only work within a certain ...
Goal: To understand the expansion of our universe.
... • Each time the light from the Quasar passes a cloud or galaxy the light from the Quasar is shifted to a different wavelength. • The gases in the cloud will emit and absorbed (based on the properties of the cloud or galaxy) at a specific wavelength that is not shifted. • So, each cloud adds its fing ...
... • Each time the light from the Quasar passes a cloud or galaxy the light from the Quasar is shifted to a different wavelength. • The gases in the cloud will emit and absorbed (based on the properties of the cloud or galaxy) at a specific wavelength that is not shifted. • So, each cloud adds its fing ...
Lambda-CDM model
The ΛCDM (Lambda cold dark matter) or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains a cosmological constant, denoted by Lambda (Greek Λ), associated with dark energy, and cold dark matter (abbreviated CDM). It is frequently referred to as the standard model of Big Bang cosmology, because it is the simplest model that provides a reasonably good account of the following properties of the cosmos: the existence and structure of the cosmic microwave background the large-scale structure in the distribution of galaxies the abundances of hydrogen (including deuterium), helium, and lithium the accelerating expansion of the universe observed in the light from distant galaxies and supernovaeThe model assumes that general relativity is the correct theory of gravity on cosmological scales.It emerged in the late 1990s as a concordance cosmology, after a period of time when disparate observed properties of the universe appeared mutually inconsistent, and there was no consensus on the makeup of the energy density of the universe.The ΛCDM model can be extended by adding cosmological inflation, quintessence and other elements that are current areas of speculation and research in cosmology.Some alternative models challenge the assumptions of the ΛCDM model. Examples of these are modified Newtonian dynamics, modified gravity and theories of large-scale variations in the matter density of the universe.