Evolution of Close Binary Systems
... • The scenario that leads to nova explosions can produce an even wilder phenomenon. • In the early 1900s `novae’ were sometimes observed in other galaxies and were used to help set the distances to galaxies. • But, when it became clear that even the nearest galaxies were much further away than anyon ...
... • The scenario that leads to nova explosions can produce an even wilder phenomenon. • In the early 1900s `novae’ were sometimes observed in other galaxies and were used to help set the distances to galaxies. • But, when it became clear that even the nearest galaxies were much further away than anyon ...
formation2
... stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the Sun’s. • Why is the spiral structure in galaxies so ...
... stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the Sun’s. • Why is the spiral structure in galaxies so ...
Early Spring Observing – Millstone News Night Sky
... The Beehive contains a larger star population than most other nearby clusters. Under dark skies the Beehive Cluster looks like a nebulous object to the naked eye; thus it has been known since ancient times. We often find it, rather than the constellation it is found in (Cancer). From Wikipedia: The ...
... The Beehive contains a larger star population than most other nearby clusters. Under dark skies the Beehive Cluster looks like a nebulous object to the naked eye; thus it has been known since ancient times. We often find it, rather than the constellation it is found in (Cancer). From Wikipedia: The ...
About SDSS - Astro Projects
... the further away we look in distance, the farther back we look in time as well. The Sloan survey has imaged galaxies out to a distance of about 6000 million light years, and this means that we see the farthest galaxies appearing in its images as they were 6000 million years ago (ignoring a relativis ...
... the further away we look in distance, the farther back we look in time as well. The Sloan survey has imaged galaxies out to a distance of about 6000 million light years, and this means that we see the farthest galaxies appearing in its images as they were 6000 million years ago (ignoring a relativis ...
Are turbulent spheres suitable initial conditions for star
... first star is formed in Fig. 2 (except for Early A). In the galactic simulation, Early A evolves into Cloud A after 10 Myr. Therefore, in Fig. 2 we show Early A at 15 Myr, to compare it with Cloud A at 5 Myr. All clouds show a complex filamentary network and are highly structured, whether using the ...
... first star is formed in Fig. 2 (except for Early A). In the galactic simulation, Early A evolves into Cloud A after 10 Myr. Therefore, in Fig. 2 we show Early A at 15 Myr, to compare it with Cloud A at 5 Myr. All clouds show a complex filamentary network and are highly structured, whether using the ...
Solutions
... for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the disks of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Gal ...
... for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the disks of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Gal ...
Origin of stars
... some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
... some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
Earth`s Motion and Seasons
... Contains lots of gas and dust with younger stars Our solar system is located on the Orion Arm 25,000 light-years away from the central bulge Open Clusters: vast cloud of dust & gas that forms a loose grouping of stars ...
... Contains lots of gas and dust with younger stars Our solar system is located on the Orion Arm 25,000 light-years away from the central bulge Open Clusters: vast cloud of dust & gas that forms a loose grouping of stars ...
Lecture 7
... Not a black hole from a single stellar collapse, but must be built up over time. We shall meet these again when we come to look at quasars, but we have to ask “Just how active was the young Milky Way”? Continuing Education 2009 ...
... Not a black hole from a single stellar collapse, but must be built up over time. We shall meet these again when we come to look at quasars, but we have to ask “Just how active was the young Milky Way”? Continuing Education 2009 ...
3 The lives of galaxies
... What is Dark Matter? Particles pervading space? We know in fact that dark matter can be any kind of ordinary matter. In later lectures we will see that Helium and other elements are made during the Big Bang by nuclear fusion; the amount made depends on the density of the Universe. The density of dar ...
... What is Dark Matter? Particles pervading space? We know in fact that dark matter can be any kind of ordinary matter. In later lectures we will see that Helium and other elements are made during the Big Bang by nuclear fusion; the amount made depends on the density of the Universe. The density of dar ...
Dark Matter - UW - Laramie, Wyoming | University of Wyoming
... can explain the strange motions of galaxies in clusters and stars in galaxies, but that it can’t be normal stuff • Could we just have gotten gravity wrong ...
... can explain the strange motions of galaxies in clusters and stars in galaxies, but that it can’t be normal stuff • Could we just have gotten gravity wrong ...
Lecture 42
... stars, of which the star T-Tauri (now known to be a binary pair) is the type example. During this phase, a visible star begins to emerge from its cocoon of gas and dust, but it remains surrounded by its circumstellar disk. The luminosity is due entirely to continued accretion and gravitational colla ...
... stars, of which the star T-Tauri (now known to be a binary pair) is the type example. During this phase, a visible star begins to emerge from its cocoon of gas and dust, but it remains surrounded by its circumstellar disk. The luminosity is due entirely to continued accretion and gravitational colla ...
Lecture course problems
... 43 000 km h1. Calculate the Doppler shifts for the H line observed from points on the extreme left and extreme right of Jupiter’s equator, as viewed from earth. What would be the Doppler shift for a point observed in the centre of the planet as viewed ...
... 43 000 km h1. Calculate the Doppler shifts for the H line observed from points on the extreme left and extreme right of Jupiter’s equator, as viewed from earth. What would be the Doppler shift for a point observed in the centre of the planet as viewed ...
The Bible and big bang cosmology
... some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
... some special conditions for star formation and also for a long time period. A cloud of hydrogen gas must be compressed to a sufficiently small size so that gravity dominates. continued ...
Galaxy Properties - Tufts Institute of Cosmology
... Spirals have Gas and Dust and Young Stars – continual star formation Ellipicals are devoid of gas and dust and can no longer form young stars Ellipicals have old stars – but they have high metallicity Kinematics: Ellipticals: Velocities of stars in ellipticals are more or less random Velocity disper ...
... Spirals have Gas and Dust and Young Stars – continual star formation Ellipicals are devoid of gas and dust and can no longer form young stars Ellipicals have old stars – but they have high metallicity Kinematics: Ellipticals: Velocities of stars in ellipticals are more or less random Velocity disper ...
superbubbles vs super-galactic winds
... shock drives the outer shock to collect the surrounding ISM of density (ρ) into a dense shell. This in a constant density medium leads to a continuous deceleration of the remnant. However, if the evolution takes place in a disk-like configuration, and the density falls off steeply in the direction p ...
... shock drives the outer shock to collect the surrounding ISM of density (ρ) into a dense shell. This in a constant density medium leads to a continuous deceleration of the remnant. However, if the evolution takes place in a disk-like configuration, and the density falls off steeply in the direction p ...
Chapter 13
... graphite, and an important family of organic molecules (polycyclic aromatic hydocarbons); PAHs are common to daily life (they form by incomplete burning of carbon-containing fuels) and provide us with a tool to understanding the abundances of chemicals related to life. ...
... graphite, and an important family of organic molecules (polycyclic aromatic hydocarbons); PAHs are common to daily life (they form by incomplete burning of carbon-containing fuels) and provide us with a tool to understanding the abundances of chemicals related to life. ...
Study Guide for Stars and Galaxies Quiz ANSWER KEY
... Planetesimals collided and grew larger by sticking together, eventually combining to form the planets. 5. Why is there a difference in the inner and outer planets? It was so hot close to the sun that most water and other iceforming materials simply vaporized. Most gases escaped the gravity of t ...
... Planetesimals collided and grew larger by sticking together, eventually combining to form the planets. 5. Why is there a difference in the inner and outer planets? It was so hot close to the sun that most water and other iceforming materials simply vaporized. Most gases escaped the gravity of t ...
Lecture5 - Tufts Institute of Cosmology
... Globular Clusters – Shapley Claim • Galaxy Size ~ 100 kpc (large) (10 times larger than Kaptyn) • Center of Galaxy shifted by 20 kpc • BIG == The Galaxy is our entire universe!! Also • Galaxy contains “Spiral Nebulae” • Spiral nebulae are “minor objects” of gaseous content • Galaxy is so large tha ...
... Globular Clusters – Shapley Claim • Galaxy Size ~ 100 kpc (large) (10 times larger than Kaptyn) • Center of Galaxy shifted by 20 kpc • BIG == The Galaxy is our entire universe!! Also • Galaxy contains “Spiral Nebulae” • Spiral nebulae are “minor objects” of gaseous content • Galaxy is so large tha ...
The Life Cycle of Stars Webquest
... 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and causes a release of energy that makes st ...
... 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and causes a release of energy that makes st ...
White dwarfs & supernovae — Oct 19 white dwarfs?
... 1. Plot shows the speed of a normal gas made of electrons with a temperature of 1000K and a degenerate gas of electrons with a temperature of 0K. A. I is a NG. II is a DG. B. I is a DG. II is a NG. ...
... 1. Plot shows the speed of a normal gas made of electrons with a temperature of 1000K and a degenerate gas of electrons with a temperature of 0K. A. I is a NG. II is a DG. B. I is a DG. II is a NG. ...