The Life Cycle of Stars Webquest
... Color the hottest stars on the left to the coolest stars on the right. b. Label the spectral classes appropriately under each star (G, B, F, A, O, K, M) ...
... Color the hottest stars on the left to the coolest stars on the right. b. Label the spectral classes appropriately under each star (G, B, F, A, O, K, M) ...
Today`s Powerpoint
... In 1960s Ray Davis and John Bahcall measured the neutrino flux from the Sun and found it to be lower than expected (by 30-50%) Confirmed in subsequent experiments Theory of p-p fusion well understood Solar interior well understood ...
... In 1960s Ray Davis and John Bahcall measured the neutrino flux from the Sun and found it to be lower than expected (by 30-50%) Confirmed in subsequent experiments Theory of p-p fusion well understood Solar interior well understood ...
Compact Objects
... Pulsars Pulsars are radio sources that blink on and off with very regular periods ...
... Pulsars Pulsars are radio sources that blink on and off with very regular periods ...
Formation of the Universe Test Review Packet
... 13. Compare and Contrast how a HIGH Mass, LOW Mass, and a AVERAGE Mass (Sun-like) star ...
... 13. Compare and Contrast how a HIGH Mass, LOW Mass, and a AVERAGE Mass (Sun-like) star ...
Topic 6 Introduction
... • Type Ia - have no H lines but He and strong Si II are seen • Type Ib - lacks H and Si II lines • Type Ic - no H, Si II and He lines ...
... • Type Ia - have no H lines but He and strong Si II are seen • Type Ib - lacks H and Si II lines • Type Ic - no H, Si II and He lines ...
Review Quiz No. 17
... The radius in the interior of a star where fusion processes can no longer take place. The point in time of a star’s life when nuclear fusion of hydrogen into helium ceases. The point in time of a star’s life when nuclear fusion processes cease alltogether. The point in a rotating star cluster beyond ...
... The radius in the interior of a star where fusion processes can no longer take place. The point in time of a star’s life when nuclear fusion of hydrogen into helium ceases. The point in time of a star’s life when nuclear fusion processes cease alltogether. The point in a rotating star cluster beyond ...
Stellar Evolution - FSU High Energy Physics
... gravitational collapse by generating thermonuclear energy • Most stars are composed mainly of Hydrogen and thus fuse together to form Helium. ...
... gravitational collapse by generating thermonuclear energy • Most stars are composed mainly of Hydrogen and thus fuse together to form Helium. ...
08 October: Stellar life after the Main Sequence
... An easy way to see why a Main Sequence star undergoes a “crisis” Hydrogen mass fraction in core at start: 71%, now: 34% ...
... An easy way to see why a Main Sequence star undergoes a “crisis” Hydrogen mass fraction in core at start: 71%, now: 34% ...
Notes: Stellar Nucleosynthesis
... • Begins when two 1H atoms fuse into 2H • positron and neutrino released (energy!) ...
... • Begins when two 1H atoms fuse into 2H • positron and neutrino released (energy!) ...
The Life of a Star
... • As long as they have hydrogen atoms to fuse into helium atoms they just keep on releasing lots of energy. ...
... • As long as they have hydrogen atoms to fuse into helium atoms they just keep on releasing lots of energy. ...
Electric Potential Questions
... a) What is the change in the proton's potential? Consider both cases of moving with and against the field? b) What is the change in energy in electron volts? c) How much work would be done if the proton were moved perpendicular to the electric field? ...
... a) What is the change in the proton's potential? Consider both cases of moving with and against the field? b) What is the change in energy in electron volts? c) How much work would be done if the proton were moved perpendicular to the electric field? ...
CMC The Universe – Pics of the day 1. Neutron Star A Neutron Star
... A Neutron Star is a type of compact star which is formed by the graviti ...
... A Neutron Star is a type of compact star which is formed by the graviti ...
Lec 25.2- STELLAR EVOLUTION SUMMARY
... Stars are believed to originate in enormous clouds of dust and (mostly hydrogen) gas. There are many such clouds in our Universe': They are assumed to contain nearly all of the matter between the stars. Gravity is a key to star evolution. You may recall that according to Newton's law of gravity, all ...
... Stars are believed to originate in enormous clouds of dust and (mostly hydrogen) gas. There are many such clouds in our Universe': They are assumed to contain nearly all of the matter between the stars. Gravity is a key to star evolution. You may recall that according to Newton's law of gravity, all ...
Introduction to Astronomy
... – Infalling gas doesn’t explode, but still heated enough to create a “hot-spot” on the surface of the neutron star – Rotates in and out of view, creating pulses of X-rays ...
... – Infalling gas doesn’t explode, but still heated enough to create a “hot-spot” on the surface of the neutron star – Rotates in and out of view, creating pulses of X-rays ...
Questions for The Elements: Forged in Stars
... 2. What percent of each of these two elements do they have? 3. What happens to Hydrogen atoms in a star’s core? 4. For about what percent of a star’s life does it do this? 5. What happens when a star runs out of Hydrogen to use as fuel for fusion? 6. If you fuse three Helium atoms together, what ele ...
... 2. What percent of each of these two elements do they have? 3. What happens to Hydrogen atoms in a star’s core? 4. For about what percent of a star’s life does it do this? 5. What happens when a star runs out of Hydrogen to use as fuel for fusion? 6. If you fuse three Helium atoms together, what ele ...
Ch 28 Vocab cnp
... The brightness of a star The measure of how bright a star would be if it were located 10 parsecs from Earth A group of millions, or even billions of stars held together by gravity A unit of measurement used to describe distances between celestial objects, equal to 3.258 light-years A large cloud of ...
... The brightness of a star The measure of how bright a star would be if it were located 10 parsecs from Earth A group of millions, or even billions of stars held together by gravity A unit of measurement used to describe distances between celestial objects, equal to 3.258 light-years A large cloud of ...
Kinetics and Numerical Modeling of Competitive Fusion Processes
... particles is on the order of the de-Broglie wavelength of the particle. For the present discussion let us assume that the entrance channel particles that will be considered for fusion are protons (as is the case in the Sun). Figure 1 shows that protons repel one another unless a sufficient pressure ...
... particles is on the order of the de-Broglie wavelength of the particle. For the present discussion let us assume that the entrance channel particles that will be considered for fusion are protons (as is the case in the Sun). Figure 1 shows that protons repel one another unless a sufficient pressure ...
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 ...
Stars Notes
... Core starts to contract Outer layers expand Core reaches temperatures high enough to spark the fusion into carbon (200,000,000°C) ...
... Core starts to contract Outer layers expand Core reaches temperatures high enough to spark the fusion into carbon (200,000,000°C) ...
Kein Folientitel
... Topic: Shell structure at largely asymmetric N, Z values In contrast to other physical systems the fact that one has a two-component system induces N and Z dependent shells. The shell structure will change drastically for strongly asymmetrical nuclei, due to changing spin-orbit interaction and coup ...
... Topic: Shell structure at largely asymmetric N, Z values In contrast to other physical systems the fact that one has a two-component system induces N and Z dependent shells. The shell structure will change drastically for strongly asymmetrical nuclei, due to changing spin-orbit interaction and coup ...
Unit 8 Astronomy
... A ___________________ is an _________________ that marks the end of a very massive star’s life. When it occurs, the exploding star can outshine all of the other stars in the galaxy in total for several days and may leave behind only a crushed core. ...
... A ___________________ is an _________________ that marks the end of a very massive star’s life. When it occurs, the exploding star can outshine all of the other stars in the galaxy in total for several days and may leave behind only a crushed core. ...
The Life Cycle of Stars
... nebula consists primarily of hydrogen and helium. 2. Parts of nebulas collapse in on themselves. When it reaches a certain density, gravitational forces begin to pull the gas and dust particles close together. Over time, this gravity causes regions of greater density to form within the nebula, formi ...
... nebula consists primarily of hydrogen and helium. 2. Parts of nebulas collapse in on themselves. When it reaches a certain density, gravitational forces begin to pull the gas and dust particles close together. Over time, this gravity causes regions of greater density to form within the nebula, formi ...
P-nuclei
p-Nuclei (p stands for proton-rich) are certain proton-rich, naturally occurring isotopes of some elements between selenium and mercury which cannot be produced in either s- or r-process.