Study Guide: Use your notes and handouts to
... 32. What does magnitude of stars really measure? 33. How is apparent magnitude different from absolute magnitude? 34. What is a parallax? What is it used to measure in space? 35. What is a Hertzsprung Russell Diagram? 36. What is on the X axis of a HR Diagram? 37. What is on the Y axis of the HR Dia ...
... 32. What does magnitude of stars really measure? 33. How is apparent magnitude different from absolute magnitude? 34. What is a parallax? What is it used to measure in space? 35. What is a Hertzsprung Russell Diagram? 36. What is on the X axis of a HR Diagram? 37. What is on the Y axis of the HR Dia ...
rood_ozma50
... On the other hand if a Jupiter is formed too quickly while there is still a lot material in the disk, it spirals inward to become a hot Jupiter and eats any Earth-like planets on the way. ...
... On the other hand if a Jupiter is formed too quickly while there is still a lot material in the disk, it spirals inward to become a hot Jupiter and eats any Earth-like planets on the way. ...
The Life Cycles of Stars, Part I
... The Life Cycles of Stars, Part I I. Star Birth and Life Imagine an enormous cloud of gas and dust many light-years across. Gravity, as it always does, tries to pull the materials together. A few grains of dust collect a few more, then a few more, then more still. Eventually, enough gas and dust has ...
... The Life Cycles of Stars, Part I I. Star Birth and Life Imagine an enormous cloud of gas and dust many light-years across. Gravity, as it always does, tries to pull the materials together. A few grains of dust collect a few more, then a few more, then more still. Eventually, enough gas and dust has ...
Honors Question – Black Holes and Neutron Stars In Friday`s lecture
... Another interesting astronomical object is the neutron star, a stellar remnant which is composed of neutrons packed tightly together like marbles. In other words, a neutron star is essentially a giant neutron-only nucleus. It is held to a certain size by the Pauli Exclusion Principle of quantum mech ...
... Another interesting astronomical object is the neutron star, a stellar remnant which is composed of neutrons packed tightly together like marbles. In other words, a neutron star is essentially a giant neutron-only nucleus. It is held to a certain size by the Pauli Exclusion Principle of quantum mech ...
Document
... stars that are yellow and white Still further up are the more luminous blue stars Mass of a star increases moving up the main sequence Gravitational pressure increases with mass, so to maintain equilibrium, fusion reactions in the core must generate a greater radiation pressure Star has to ‘ ...
... stars that are yellow and white Still further up are the more luminous blue stars Mass of a star increases moving up the main sequence Gravitational pressure increases with mass, so to maintain equilibrium, fusion reactions in the core must generate a greater radiation pressure Star has to ‘ ...
CMC The Universe – Pics of the day 1. Neutron Star A Neutron Star
... http://www.youtube.com/watch?v=tlTSXr4PfSg ...
... http://www.youtube.com/watch?v=tlTSXr4PfSg ...
ph507lecnote06
... When photons have trouble moving through a medium, they end up pushing outwards on the matter. This is called radiation pressure. ...
... When photons have trouble moving through a medium, they end up pushing outwards on the matter. This is called radiation pressure. ...
2014 Joseph E. Pesce, Ph.D. 1 Astro 113 Final Exam Review 1. What
... 8. Where does a star spend most of its life? 9. A galaxy is at a distance of one billion light years. What does that mean? 10. How can we distinguish an F-‐type star from an M-‐type ...
... 8. Where does a star spend most of its life? 9. A galaxy is at a distance of one billion light years. What does that mean? 10. How can we distinguish an F-‐type star from an M-‐type ...
powerpoint
... Time table • This all occurs in a time frame of about a week. • We have never been able to be lucky enough to watch a star go through this rapid transition. ...
... Time table • This all occurs in a time frame of about a week. • We have never been able to be lucky enough to watch a star go through this rapid transition. ...
Deep Space Mystery Note Form 3
... The forces of their nuclei create a recoil of the squeezed core. Then is the supernova. Type II Type II Binary stars are when there are two stars and they revolve around each other. In these systems supernovas occur also. Stars up to eight times the mass of our sun usually evolve into wh ...
... The forces of their nuclei create a recoil of the squeezed core. Then is the supernova. Type II Type II Binary stars are when there are two stars and they revolve around each other. In these systems supernovas occur also. Stars up to eight times the mass of our sun usually evolve into wh ...
stars
... it starts to burn fuel and glow. • The star burns out it’s fuel it glows less and begins to expand. This star is called a Red Giant. • The star will eventually collapse and explode this is know as the Supernova stage.(only the ones much bigger than our sun – 8 x or more) • Depending on it’s size it ...
... it starts to burn fuel and glow. • The star burns out it’s fuel it glows less and begins to expand. This star is called a Red Giant. • The star will eventually collapse and explode this is know as the Supernova stage.(only the ones much bigger than our sun – 8 x or more) • Depending on it’s size it ...
Russell County Schools Non-Traditional Instructional Expectations
... The discoveries of the white dwarf, the neutron star, and the black hole, coming well after the discovery of the red giant are among eh most exciting developments in decades because they may be well present physicists with their greatest challenge since thefailure of classical mechanics. In the lif ...
... The discoveries of the white dwarf, the neutron star, and the black hole, coming well after the discovery of the red giant are among eh most exciting developments in decades because they may be well present physicists with their greatest challenge since thefailure of classical mechanics. In the lif ...
Chapter 8, Lesson 4, 2nd Packet, pdf
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Stellar evolution
Stellar evolution is the process by which a star changes during its lifetime. Depending on the mass of the star, this lifetime ranges from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the age of the universe. The table shows the lifetimes of stars as a function of their masses. All stars are born from collapsing clouds of gas and dust, often called nebulae or molecular clouds. Over the course of millions of years, these protostars settle down into a state of equilibrium, becoming what is known as a main-sequence star.Nuclear fusion powers a star for most of its life. Initially the energy is generated by the fusion of hydrogen atoms at the core of the main-sequence star. Later, as the preponderance of atoms at the core becomes helium, stars like the Sun begin to fuse hydrogen along a spherical shell surrounding the core. This process causes the star to gradually grow in size, passing through the subgiant stage until it reaches the red giant phase. Stars with at least half the mass of the Sun can also begin to generate energy through the fusion of helium at their core, whereas more-massive stars can fuse heavier elements along a series of concentric shells. Once a star like the Sun has exhausted its nuclear fuel, its core collapses into a dense white dwarf and the outer layers are expelled as a planetary nebula. Stars with around ten or more times the mass of the Sun can explode in a supernova as their inert iron cores collapse into an extremely dense neutron star or black hole. Although the universe is not old enough for any of the smallest red dwarfs to have reached the end of their lives, stellar models suggest they will slowly become brighter and hotter before running out of hydrogen fuel and becoming low-mass white dwarfs.Stellar evolution is not studied by observing the life of a single star, as most stellar changes occur too slowly to be detected, even over many centuries. Instead, astrophysicists come to understand how stars evolve by observing numerous stars at various points in their lifetime, and by simulating stellar structure using computer models.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.