The Origin of the Elements - Indiana University Astronomy
... About 10% of the lithium in the Universe today was also created in the Big Bang. We’re still not sure where the rest comes from. The first stars formed from this material. ...
... About 10% of the lithium in the Universe today was also created in the Big Bang. We’re still not sure where the rest comes from. The first stars formed from this material. ...
Surveying the Stars
... • What are the two types of star clusters? • Open clusters contain up to several thousand stars and are found in the disk of the ...
... • What are the two types of star clusters? • Open clusters contain up to several thousand stars and are found in the disk of the ...
solutions
... Which also suggests that the average mass of one of these objects would be about M̄ ≈ 16M . B). Assume that every stellar core collapse distributed 0.05M of iron into the interstellar medium. If the MW started with 5 × 1010 M of gas, what is the mean interstellar mass abundance of iron in the Gal ...
... Which also suggests that the average mass of one of these objects would be about M̄ ≈ 16M . B). Assume that every stellar core collapse distributed 0.05M of iron into the interstellar medium. If the MW started with 5 × 1010 M of gas, what is the mean interstellar mass abundance of iron in the Gal ...
plagiarism - things to know - Science Department
... than our sun, and so big, if you were to put Betelgeuse in place of our sun, its How to use the info without plagiarizing: surface would reach all the way out to Everything has a temperature, and Jupiter. Betelgeuse's color is bright red. everything radiates light, and the two are On the other hand, ...
... than our sun, and so big, if you were to put Betelgeuse in place of our sun, its How to use the info without plagiarizing: surface would reach all the way out to Everything has a temperature, and Jupiter. Betelgeuse's color is bright red. everything radiates light, and the two are On the other hand, ...
Chapter14(4-7-11)
... • 14.2 Galactic Recycling (closely related to Ch. 13) • 14.3 The History of the Milky Way • 14.4 The Mysterious Galactic Center ...
... • 14.2 Galactic Recycling (closely related to Ch. 13) • 14.3 The History of the Milky Way • 14.4 The Mysterious Galactic Center ...
2014-2015 SCIENCE Instructional Curriculum Plan Grade: K
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
Stellar Evolution: Evolution: Birth, Life, and Death of Stars
... that are close together due to gravity, and orbit around themselves. They can be visible directly (as in the image on the left), or detected by their spectra, or an eclipse between the stars. They are the most important tool to measure the masses of stars Multiple stars are three or more stars that ...
... that are close together due to gravity, and orbit around themselves. They can be visible directly (as in the image on the left), or detected by their spectra, or an eclipse between the stars. They are the most important tool to measure the masses of stars Multiple stars are three or more stars that ...
PPT
... per star by a global iterative method (>100 measures) Binary models fitted to systems with large residuals GAIA observations of quasars (known and new) put the astrometry on a quasi-inertial reference system ...
... per star by a global iterative method (>100 measures) Binary models fitted to systems with large residuals GAIA observations of quasars (known and new) put the astrometry on a quasi-inertial reference system ...
Supermassive Black Holes in Inactive Galaxies Encyclopedia of Astronomy & Astrophysics eaa.iop.org
... hierarchical structure formation and galaxy mergers (see GALAXIES: INTERACTIONS AND MERGERS). If most large galaxies contain BHs, then mergers produce binary BHs and, in three-body encounters, BH ejections with recoil. How much offset we see, and indeed whether we see two BHs or one or none at all, ...
... hierarchical structure formation and galaxy mergers (see GALAXIES: INTERACTIONS AND MERGERS). If most large galaxies contain BHs, then mergers produce binary BHs and, in three-body encounters, BH ejections with recoil. How much offset we see, and indeed whether we see two BHs or one or none at all, ...
Star Formation
... The massive stars have already used up their fuel and have moved off the Main Sequence ...
... The massive stars have already used up their fuel and have moved off the Main Sequence ...
I Cloudy with a Chance of Making a star is no easy thing
... suggesting that the balance recently tilted in favor of collapse. Other studies find evidence for external triggering. Thomas Preibisch of the Max Planck Institute for Radio Astronomy in Bonn and his collaborators have showed that widely distributed stars in the Upper Scorpius region all formed near ...
... suggesting that the balance recently tilted in favor of collapse. Other studies find evidence for external triggering. Thomas Preibisch of the Max Planck Institute for Radio Astronomy in Bonn and his collaborators have showed that widely distributed stars in the Upper Scorpius region all formed near ...
Exercise 4 (Stars and the universe) Suggested answers
... 1. (a) The star is nearly a blackbody, the spectrum of a star can be approximated as a blackbody radiation curve. On the curve, there is a peak which shifts to shorter wavelength when the temperature of the blackbody increases. From the position of the peak, astronomers can deduce the surface temper ...
... 1. (a) The star is nearly a blackbody, the spectrum of a star can be approximated as a blackbody radiation curve. On the curve, there is a peak which shifts to shorter wavelength when the temperature of the blackbody increases. From the position of the peak, astronomers can deduce the surface temper ...
Watch - ggg999.org
... The four panels show the power density spectrum of the WIRE 2000 time series along with different simulations. Each simulation is the mean of five simulations with different seed numbers. The hatched regions show the 1-σ variation for selected simulations. ...
... The four panels show the power density spectrum of the WIRE 2000 time series along with different simulations. Each simulation is the mean of five simulations with different seed numbers. The hatched regions show the 1-σ variation for selected simulations. ...
Still Lost in Space
... Also, only a few of them should pulse, and any pulsations should take hours to months. Instead they all pulse, some with periods as short as a quarter of a second! No stars do this. Could the pulsation be due to something orbiting each of them very quickly? Even if the orbiting thing was trave ...
... Also, only a few of them should pulse, and any pulsations should take hours to months. Instead they all pulse, some with periods as short as a quarter of a second! No stars do this. Could the pulsation be due to something orbiting each of them very quickly? Even if the orbiting thing was trave ...
Lecture 9: Post-main sequence evolution of stars Lifespan on the
... • 5 billion years from now: our sun begins to leave the main sequence. The He core shrinks and H to He fusion occurs in a shell around the hot He core. The Sun is now a red giant. • ~100 million years later: He flash: the sun’s core will fuse He to C in the core and settle onto the horizontal bran ...
... • 5 billion years from now: our sun begins to leave the main sequence. The He core shrinks and H to He fusion occurs in a shell around the hot He core. The Sun is now a red giant. • ~100 million years later: He flash: the sun’s core will fuse He to C in the core and settle onto the horizontal bran ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.