Announcements Evolution of High-Mass Stars: Red Supergiants
... The Halo has very little gas, and no new stars are forming there. The halo of the galaxy is populated by old stars. (Population II stars) ...
... The Halo has very little gas, and no new stars are forming there. The halo of the galaxy is populated by old stars. (Population II stars) ...
astronomy 2 review sheet - Hicksville Public Schools
... 6. What does the lifetime of a star depend on? IT’S MASS. 7. What is a supernova? EXPLOSION OF A HIGH MASS STAR. 8. What is a star system? A GROUP OF TWO OR MORE STARS. 9. What are eclipsing binary stars? A STAR SYSTEM WHERE ONE STAR BLOCKS THE LIGHT OF THE OTHER STAR AT REGULAR INTERVALS. 10. What ...
... 6. What does the lifetime of a star depend on? IT’S MASS. 7. What is a supernova? EXPLOSION OF A HIGH MASS STAR. 8. What is a star system? A GROUP OF TWO OR MORE STARS. 9. What are eclipsing binary stars? A STAR SYSTEM WHERE ONE STAR BLOCKS THE LIGHT OF THE OTHER STAR AT REGULAR INTERVALS. 10. What ...
the lab handout here
... A Main Sequence star that is 10,000 times more luminous than the sun, most likely has a temperature of _________________________________________________________________ ...
... A Main Sequence star that is 10,000 times more luminous than the sun, most likely has a temperature of _________________________________________________________________ ...
Ch16: The Milky Way
... Sun’s orbital motion (radius and velocity) tells us mass within Sun’s orbit: 1.0 x 1011 MSun The total amount of light suggests ~ few x 109 Msun Dark matter! ...
... Sun’s orbital motion (radius and velocity) tells us mass within Sun’s orbit: 1.0 x 1011 MSun The total amount of light suggests ~ few x 109 Msun Dark matter! ...
SO FAR:
... SO FAR: • Galaxy types • Ancient history • Properties of Interstellar Dust • Milky Way and spiral galaxy morphology • Nuclear bulge • Disk • Stellar halo • Dark matter halo • Chemical enrichment • Measuring chemical abundances – Absorption lines (stars) – Continuum energy distributions (stars) – Emi ...
... SO FAR: • Galaxy types • Ancient history • Properties of Interstellar Dust • Milky Way and spiral galaxy morphology • Nuclear bulge • Disk • Stellar halo • Dark matter halo • Chemical enrichment • Measuring chemical abundances – Absorption lines (stars) – Continuum energy distributions (stars) – Emi ...
Star Life Cycles
... something called a Supernova. A supernova occurs when a star with many times the mass of the Sun runs out of usable nuclear fuel. The Crab Nebula is an example of the remnants of supernova. ...
... something called a Supernova. A supernova occurs when a star with many times the mass of the Sun runs out of usable nuclear fuel. The Crab Nebula is an example of the remnants of supernova. ...
characteristics of stars
... When a star ends its life it runs out of __________ and other fuels needed to produce energy. When this happens the star _________ _________ and begins to cool. RED GIANT - a star near the end of its life, that becomes larger and redder as it runs out of its hydrogen fuel. RED SUPERGIANT - a star wi ...
... When a star ends its life it runs out of __________ and other fuels needed to produce energy. When this happens the star _________ _________ and begins to cool. RED GIANT - a star near the end of its life, that becomes larger and redder as it runs out of its hydrogen fuel. RED SUPERGIANT - a star wi ...
Chapter 30
... seen in the sky during different seasons of the year? A. Stellar motion around Polaris B. Earth’s rotation on its axis C. Earth’s revolution around the sun D. Position north or south of the equator ...
... seen in the sky during different seasons of the year? A. Stellar motion around Polaris B. Earth’s rotation on its axis C. Earth’s revolution around the sun D. Position north or south of the equator ...
The Lives of Stars
... • White dwarfs are only about the size of Earth, but they have about as much mass as the sun. • Since a white dwarf has the same mass as the sun but only one millionth the volume, it is one million times as dense as the sun. A spoonful of material from a white dwarf has as much mass as a large truc ...
... • White dwarfs are only about the size of Earth, but they have about as much mass as the sun. • Since a white dwarf has the same mass as the sun but only one millionth the volume, it is one million times as dense as the sun. A spoonful of material from a white dwarf has as much mass as a large truc ...
Stellar Physics - University of Reading
... Classical Mechanics and Optics Thermodynamics and Statistical Mechanics Atomic and Molecular Physics Ideas from Observational Astronomy ...
... Classical Mechanics and Optics Thermodynamics and Statistical Mechanics Atomic and Molecular Physics Ideas from Observational Astronomy ...
Elements and Isotopes - University of California, Berkeley
... The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
... The temperature and pressure in the core are extreme enough for fusion (and the Sun’s gravity keeps them that way). Most energy is produced in the inner 20%. Convection carries the energy in the outer 30%. Most of the mass is in the inner 50% because the density is much higher. ...
PowerPoint - Chandra X
... Orion Nebula: A Rich Cluster of Young Stars about 1,500 light years from Earth ...
... Orion Nebula: A Rich Cluster of Young Stars about 1,500 light years from Earth ...
The Size and Structure of the Milky Way Galaxy
... Milky Way (leads to something extremely interesting) V=220 km/sec ...
... Milky Way (leads to something extremely interesting) V=220 km/sec ...
Milky Way
... • From variable stars we know distances. • From Doppler shift we know rotation velocity. • Use Kepler’s Third Law (again) to get mass of the Milky Way. More than what we see. • M = 1011 x Msun ...
... • From variable stars we know distances. • From Doppler shift we know rotation velocity. • Use Kepler’s Third Law (again) to get mass of the Milky Way. More than what we see. • M = 1011 x Msun ...
lecture23
... Instability caused by presence of ionized He More luminous variable stars have large Period Variability is EXTREMELY USEFUL, because it is an absolute distance indicator ...
... Instability caused by presence of ionized He More luminous variable stars have large Period Variability is EXTREMELY USEFUL, because it is an absolute distance indicator ...
Components of Universe
... - Milky Way stars! (meaning only stars in our own galaxy) i.e., you cannot see any individual stars in any other galaxy;-- they’re just too far and too faint ...
... - Milky Way stars! (meaning only stars in our own galaxy) i.e., you cannot see any individual stars in any other galaxy;-- they’re just too far and too faint ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.