(HR) Diagrams
... the laws of physics for the behavior of blackbodies (Wien’s law and the StefanBoltzmann law), it is these temperatures that account for why O and B stars have a bluish tint to their color and M stars have a reddish tint. ...
... the laws of physics for the behavior of blackbodies (Wien’s law and the StefanBoltzmann law), it is these temperatures that account for why O and B stars have a bluish tint to their color and M stars have a reddish tint. ...
Chapter 27 Stars and Galaxies
... Cepheid (Sef-EE-id) variable star – Star’s brightness varies at a constant pattern Brightens and fades in a cycle that can be used to determine how far away it is ...
... Cepheid (Sef-EE-id) variable star – Star’s brightness varies at a constant pattern Brightens and fades in a cycle that can be used to determine how far away it is ...
Today`s Powerpoint
... Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes cloud want to collapse. ...
... Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes cloud want to collapse. ...
Brock physics - Brock University
... (c) the radius of the region around a neutron star within which X-ray bursts occur. (d) * the radius of the region around a black hole within which not even light can escape. 35. Neutron stars with masses greater than about 3 solar masses do not exist because neutron degeneracy pressure is not stron ...
... (c) the radius of the region around a neutron star within which X-ray bursts occur. (d) * the radius of the region around a black hole within which not even light can escape. 35. Neutron stars with masses greater than about 3 solar masses do not exist because neutron degeneracy pressure is not stron ...
Deep Space (PDF: 224k)
... surface. Most of this time elapses in the “radiative zone,” where light scatters back and forth, but over time makes its way toward the surface. Above the radiative zone is the convective zone, where energy transport becomes a bit faster. Just as Earth’s atmosphere on a summer day gets warmed by the ...
... surface. Most of this time elapses in the “radiative zone,” where light scatters back and forth, but over time makes its way toward the surface. Above the radiative zone is the convective zone, where energy transport becomes a bit faster. Just as Earth’s atmosphere on a summer day gets warmed by the ...
Where do you find yourself now??
... The map shows several stars visible with the naked eye which are located deep within the Orion arm. The most notable group of stars here are main stars in the constellation of Orion -from which the spiral arm gets its name. All of these stars are bright giant and supergiant -stars, thousands of time ...
... The map shows several stars visible with the naked eye which are located deep within the Orion arm. The most notable group of stars here are main stars in the constellation of Orion -from which the spiral arm gets its name. All of these stars are bright giant and supergiant -stars, thousands of time ...
Star Types
... Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. Th ...
... Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. Th ...
1.2.43The stellar populations of the Milky Way
... main sequence stars burning hydrogen in their cores. The more massive stars that formed at the same time as the surviving low-mass ones have already left the main sequence and are now red giants or white dwarfs. For a long time it was thought that all Pop. II stars had much lower metallicities than ...
... main sequence stars burning hydrogen in their cores. The more massive stars that formed at the same time as the surviving low-mass ones have already left the main sequence and are now red giants or white dwarfs. For a long time it was thought that all Pop. II stars had much lower metallicities than ...
CHAPTER 2 NOTES (STARS AND GALAXIES)
... 3 types of galaxies are: 1. spiral- arms like a pinwheel ex our galaxy- Milky Way 2. elliptical- nearly spherical to flatdisks (older than other galaxies) 3. irregular- no orderly or definite shape, not very common Milky Way Galaxy- pinwheel shaped disk with bulge in center -the older stars are near ...
... 3 types of galaxies are: 1. spiral- arms like a pinwheel ex our galaxy- Milky Way 2. elliptical- nearly spherical to flatdisks (older than other galaxies) 3. irregular- no orderly or definite shape, not very common Milky Way Galaxy- pinwheel shaped disk with bulge in center -the older stars are near ...
Stellar Evolution - Hays High Indians
... concentrated in the central regions of the galaxy. The X-ray source could be another example of a veiled black hole associated with a Type 2 Quasar. This discovery adds to a CXO 0312 Fiore P3 (CXOUJ031238.9growing body of evidence that our 765134): A possible Type 2 quasar veiled black hole.(Credit: ...
... concentrated in the central regions of the galaxy. The X-ray source could be another example of a veiled black hole associated with a Type 2 Quasar. This discovery adds to a CXO 0312 Fiore P3 (CXOUJ031238.9growing body of evidence that our 765134): A possible Type 2 quasar veiled black hole.(Credit: ...
The Milky Way: Home to Star Clusters
... and due to the dimensions and size of these carbon stars, a possible barred structure is inferred. This means that our Galaxy may, in fact, be a barred spiral, and not an ordinary spiral, as originally thought. There is, however, much speculation on the actual arrangement and distribution of the sta ...
... and due to the dimensions and size of these carbon stars, a possible barred structure is inferred. This means that our Galaxy may, in fact, be a barred spiral, and not an ordinary spiral, as originally thought. There is, however, much speculation on the actual arrangement and distribution of the sta ...
STARS
... The greater a stars mass, the greater is the amount of its nuclear fuel. However, the more massive stars are fuel guzzlers. They shine much brighter than less massive stars and use up their fuel very fast. So the more massive stars have shorter lives. Our sun will last about 10 billion years ( we a ...
... The greater a stars mass, the greater is the amount of its nuclear fuel. However, the more massive stars are fuel guzzlers. They shine much brighter than less massive stars and use up their fuel very fast. So the more massive stars have shorter lives. Our sun will last about 10 billion years ( we a ...
Stars Power Point
... • If all stars were the same distance away, their absolute magnitudes would be the same as their apparent magnitudes. ...
... • If all stars were the same distance away, their absolute magnitudes would be the same as their apparent magnitudes. ...
Stars in our Galaxy
... while others disappear. Because circumpolar constellations always orbit Polaris they are visible ALL year long while others are not. ...
... while others disappear. Because circumpolar constellations always orbit Polaris they are visible ALL year long while others are not. ...
Stellar Classification and Evolution What is a star? A cloud of gas
... from helium fusion _____________ much of their mass The ejected material expands and cools, becoming a planetary ________________ (which actually has nothing to do with planets, but we didn’t know that in the 18th century when Herschel coined the term) The core _____________________ to form a Wh ...
... from helium fusion _____________ much of their mass The ejected material expands and cools, becoming a planetary ________________ (which actually has nothing to do with planets, but we didn’t know that in the 18th century when Herschel coined the term) The core _____________________ to form a Wh ...
Document
... Notice that the X axis is spaced unevenly, and the number of Kelvins (degrees) between each line is not constant. This because it is a logarithmic scale. For example: each line between 2,000 and 3,000 represents 100 degrees; but each line between 6,000 and 7,000 represents 200 degrees; and differe ...
... Notice that the X axis is spaced unevenly, and the number of Kelvins (degrees) between each line is not constant. This because it is a logarithmic scale. For example: each line between 2,000 and 3,000 represents 100 degrees; but each line between 6,000 and 7,000 represents 200 degrees; and differe ...
ppt - Astronomy & Physics
... Stars adjust to balance these two forces, and remain in equilibrium ...
... Stars adjust to balance these two forces, and remain in equilibrium ...
PowerPoint Presentation - Super Massive Black Holes
... NASA's Chandra X-ray Observatory is a telescope specially designed to detect Xray emission from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes. ...
... NASA's Chandra X-ray Observatory is a telescope specially designed to detect Xray emission from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes. ...
Notes: 3.5 STAR EVOLUTION Name: ______ Star
... Ø White Dwarf: what SMALL or AVERAGE stars end as. • White Dwarf stars are SMALL, and DIM, but hot. Ø Neutron Stars. what MEDIUM LARGE stars end as. • Neutron stars emit RADIO WAVES instead of light. Ø Black Holes: what the VERY LARGEST stars end as. • Black holes have so much GRAVITY that LIGHT ...
... Ø White Dwarf: what SMALL or AVERAGE stars end as. • White Dwarf stars are SMALL, and DIM, but hot. Ø Neutron Stars. what MEDIUM LARGE stars end as. • Neutron stars emit RADIO WAVES instead of light. Ø Black Holes: what the VERY LARGEST stars end as. • Black holes have so much GRAVITY that LIGHT ...
Astro-Spectroscpy
... Though the surface temperature of the Sun is 5,770 degrees Kelvin, the Sun is surrounded by very hot gas in the solar corona at more than a million degrees. Solar flares and coronal mass ejections (CMEs) frequently erupt from the Sun emitting intense radiation and charged particles. ...
... Though the surface temperature of the Sun is 5,770 degrees Kelvin, the Sun is surrounded by very hot gas in the solar corona at more than a million degrees. Solar flares and coronal mass ejections (CMEs) frequently erupt from the Sun emitting intense radiation and charged particles. ...
Which object is a meteor?
... • Option B is the breaking apart of atoms (the opposite of what happens in stars) • Option C is not even a real thing • Option D is not a real thing either • CORRECT ANSWER: Option A nuclear fusion is the process of atoms fusing together and releasing HUGE amounts of energy. ...
... • Option B is the breaking apart of atoms (the opposite of what happens in stars) • Option C is not even a real thing • Option D is not a real thing either • CORRECT ANSWER: Option A nuclear fusion is the process of atoms fusing together and releasing HUGE amounts of energy. ...
Volcanoes and Igneous Activity Earth
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
Star and Galaxies
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
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.