HIERARCHICAL GALAXY ASSEMBLY AND ITS MANIFESTATIONS
... luminosity and colour like single stellar population models, with epoch of formation z~3-5: passive evolution Hierarchical semi-analytic models produce slower and more prolonged evolution, and lower masses at high redshift, ...
... luminosity and colour like single stellar population models, with epoch of formation z~3-5: passive evolution Hierarchical semi-analytic models produce slower and more prolonged evolution, and lower masses at high redshift, ...
Distant galaxies and quasars The ages of things Light
... • In the past galaxies were on average bluer : smaller : messier • This has only become clear in recent years with Hubble Space Telescope deep images • It is consistent with the idea that galaxies have formed from the merger of sub-units ...
... • In the past galaxies were on average bluer : smaller : messier • This has only become clear in recent years with Hubble Space Telescope deep images • It is consistent with the idea that galaxies have formed from the merger of sub-units ...
Forming disk galaxies in magneto-hydro
... expected structure of the magnetic field in a spiral galaxy directly from the initial conditions left behind after the hot Big Bang. It turns out that already an extremely tiny magnetic field left behind by the Big Bang is sufficient to explain the orders of magnitude larger field strengths observed ...
... expected structure of the magnetic field in a spiral galaxy directly from the initial conditions left behind after the hot Big Bang. It turns out that already an extremely tiny magnetic field left behind by the Big Bang is sufficient to explain the orders of magnitude larger field strengths observed ...
HERE - physicsisphun.org
... • Gravity draws clouds of dust together to form stars. • Gravity draws stars, dust, and gas into larger units that we call galaxies. • Gravity also causes galaxies to cluster together. • Superclusters are large groups of galaxies drawn by gravity ...
... • Gravity draws clouds of dust together to form stars. • Gravity draws stars, dust, and gas into larger units that we call galaxies. • Gravity also causes galaxies to cluster together. • Superclusters are large groups of galaxies drawn by gravity ...
Starbursts – from 30 Doradus to Lyman
... observational, points to an almost universal initial mass function for stars, at least at the highmass end, on scales from (super) star clusters to galaxies as a whole. A great deal of attention is being focused on the handful of situations (for example, star clusters in M82 and the Antennae galaxie ...
... observational, points to an almost universal initial mass function for stars, at least at the highmass end, on scales from (super) star clusters to galaxies as a whole. A great deal of attention is being focused on the handful of situations (for example, star clusters in M82 and the Antennae galaxie ...
Light Years - Spring Creek Elementary
... second. How far does it travel in one minute? In one hour? In one day? In 30 days? In 365.25 days? Now that you know how far a light year is, consider the fact that the diameter of our Solar System is approximately ...
... second. How far does it travel in one minute? In one hour? In one day? In 30 days? In 365.25 days? Now that you know how far a light year is, consider the fact that the diameter of our Solar System is approximately ...
Explain. How is Copernicus`s description of the system of planets
... revolve around Earth. • When the moon's shadow hits Earth or Earth's shadow hits the moon, an eclipse ...
... revolve around Earth. • When the moon's shadow hits Earth or Earth's shadow hits the moon, an eclipse ...
18-3 constellations RG
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
The Mass Assembly of Galaxies
... towards a growing bulge hosting an accreting massive BH. Star formation in the disk with no evidence for a major merger ...
... towards a growing bulge hosting an accreting massive BH. Star formation in the disk with no evidence for a major merger ...
Positions in the Solar System
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
Position in Solar System ppt
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
Slide 1
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
... drain soon moves ofthe the universe we know theparts dust and gas that collapsed into it. the our Sun, while smaller clumps became aroundminor became the center thetoday. of first the galaxies. draincomets, in a circle. planets, planets, moons, and asteroids. ...
Correct answers shown in boldface. Be sure to write your name and
... a. it explained why some star fields looked different in pictures taken at different times b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it showed that they moved on the HR diagram d. it allowe ...
... a. it explained why some star fields looked different in pictures taken at different times b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it showed that they moved on the HR diagram d. it allowe ...
Ramin A. Skibba - Southern California Center for Galaxy Evolution
... relatively massive satellite galaxies that have not merged and may still be growing. These systems may also be dynamically unrelaxed, which is not unexpected, because many halos themselves are unrelaxed (Skibba & Macciò 2011). These results have important implications for the physics of central and ...
... relatively massive satellite galaxies that have not merged and may still be growing. These systems may also be dynamically unrelaxed, which is not unexpected, because many halos themselves are unrelaxed (Skibba & Macciò 2011). These results have important implications for the physics of central and ...
Assignment 10
... million Suns! How do astronomers think a black hole could acquire so much mass? a. the Galaxy formed from one supergiant star, and most of what is left of it is now in the black hole b. the black hole at the center is really another galaxy that our Milky Way swallowed; none of its material comes f ...
... million Suns! How do astronomers think a black hole could acquire so much mass? a. the Galaxy formed from one supergiant star, and most of what is left of it is now in the black hole b. the black hole at the center is really another galaxy that our Milky Way swallowed; none of its material comes f ...
HST Key Project to Measure the Hubble Constant from
... Should have same luminosity because come from stars of same mass that explode in same way Determine true luminosity by using CVs to measure distance to galaxies Confirm L of all WD SNs are about the same BRIGHT: 10 bill solar luminosities at peak, detect ~ 10 bill lt-yrs away But, occur only once ev ...
... Should have same luminosity because come from stars of same mass that explode in same way Determine true luminosity by using CVs to measure distance to galaxies Confirm L of all WD SNs are about the same BRIGHT: 10 bill solar luminosities at peak, detect ~ 10 bill lt-yrs away But, occur only once ev ...
Astronomy Chapter 17 – Galaxies A. Main Ideas 1. Discovering
... Active galaxies are galaxies whose centers emit abnormally large amounts of energy from a tiny region in their core. • Radio Galaxies ⇒ Radio galaxies emit large amounts of energy in the radio part of the EM spectrum. They are usually elliptical galaxies, and their radio emission differs in two impo ...
... Active galaxies are galaxies whose centers emit abnormally large amounts of energy from a tiny region in their core. • Radio Galaxies ⇒ Radio galaxies emit large amounts of energy in the radio part of the EM spectrum. They are usually elliptical galaxies, and their radio emission differs in two impo ...
AJAstroProject
... • It is in the same group as M95 (Previous) and M96 not photographed. • In this exposure you can see two other galaxies, NGC3384 and NGC3379. • NGC3384 is in the Leo Group I and NGC3379 is a more distant galaxy. This was a 90sec exposure through the V-filter. ...
... • It is in the same group as M95 (Previous) and M96 not photographed. • In this exposure you can see two other galaxies, NGC3384 and NGC3379. • NGC3384 is in the Leo Group I and NGC3379 is a more distant galaxy. This was a 90sec exposure through the V-filter. ...
Ch. 26.5: The Expanding Universe
... & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the am ...
... & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the am ...
History of the Universe and Solar System
... first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom energy”, which is hypothesized to be forming between galaxies and pushing them apart by repulsive gravitational force. Dark energy is cal ...
... first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom energy”, which is hypothesized to be forming between galaxies and pushing them apart by repulsive gravitational force. Dark energy is cal ...
Stars, Galaxies, and the Universe Section 3 Stars, Galaxies, and the
... • Sometimes, nebulas collapse to form groups of hundreds or thousands of stars called clusters. ...
... • Sometimes, nebulas collapse to form groups of hundreds or thousands of stars called clusters. ...
E:\2012-2013\SSU\PHS 207spring 2013\3rd test 4
... The younger stars contain heavier elements created in massive stars and gathered from the supernovae of those stars. The older stars were created before the supernovae released the heavier elements. ...
... The younger stars contain heavier elements created in massive stars and gathered from the supernovae of those stars. The older stars were created before the supernovae released the heavier elements. ...
WFPC2
... Our universe began in a colossal expansion known as the Big Bang, and has been stretching apart ever since. Using WFPC2 to observe stars that vary periodically in brightness, astronomers were able to calculate the pace of this expansion to an unprecedented degree of error of 10 percent. The camera ...
... Our universe began in a colossal expansion known as the Big Bang, and has been stretching apart ever since. Using WFPC2 to observe stars that vary periodically in brightness, astronomers were able to calculate the pace of this expansion to an unprecedented degree of error of 10 percent. The camera ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.