Life_Cycle_of_a_Star_Powerpoint
... – There are more than a billion galaxies in the universe. **3 types of galaxies ...
... – There are more than a billion galaxies in the universe. **3 types of galaxies ...
PowerPoint File
... • The fuel of a main sequence star is its own mass • More massive stars have more fuel than less massive stars. • But they are using their fuel up at a fast rate, much faster than proportional to their mass. • So, massive stars run out of fuel sooner. The more massive, the shorter their Main Sequenc ...
... • The fuel of a main sequence star is its own mass • More massive stars have more fuel than less massive stars. • But they are using their fuel up at a fast rate, much faster than proportional to their mass. • So, massive stars run out of fuel sooner. The more massive, the shorter their Main Sequenc ...
Lecture 10
... is the most stable isotope. Reactions can release energy only below 56Fe. When temperature in core ~ 7 109 °K, 56Fe photodisintegrates: 56Fe Æ 13 4He + 4 n taking 100 MeV of energy! (At higher temperature, higher S is favored) This cools the core very quickly and it collapses. ...
... is the most stable isotope. Reactions can release energy only below 56Fe. When temperature in core ~ 7 109 °K, 56Fe photodisintegrates: 56Fe Æ 13 4He + 4 n taking 100 MeV of energy! (At higher temperature, higher S is favored) This cools the core very quickly and it collapses. ...
Slides - GSI IndiCo
... values can be obtain from β decay experiments. -Weak interaction processAbsolute B(GT) values - Beta decay studies are limited in the low excitation energy regions. ...
... values can be obtain from β decay experiments. -Weak interaction processAbsolute B(GT) values - Beta decay studies are limited in the low excitation energy regions. ...
bYTEBoss lesson 3 life of star
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
The Hidden Lives of Galaxies NSTA 2001
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
Supernova
... Slow neutron capture (s process) forms up to Bi-209 in low-mass stars High temps in SN creates elements up to Ca-254 Rapid neutron capture (r process) create neutron-rich isotopes which decay into more stable neutron-rich elements Neutron flux during SN is 1022 neutrons per square centimeter per sec ...
... Slow neutron capture (s process) forms up to Bi-209 in low-mass stars High temps in SN creates elements up to Ca-254 Rapid neutron capture (r process) create neutron-rich isotopes which decay into more stable neutron-rich elements Neutron flux during SN is 1022 neutrons per square centimeter per sec ...
Star Formation and Lifetimes
... Star A (a star with a mass equal to the Sun) and Star B (a star with six times the mass of the Sun)? Circle the best possible response given below. (Note: it may be helpful to examine the information given in the table on the previous page.) ...
... Star A (a star with a mass equal to the Sun) and Star B (a star with six times the mass of the Sun)? Circle the best possible response given below. (Note: it may be helpful to examine the information given in the table on the previous page.) ...
Metal Abundances of Subdwarf B Stars from SPY
... Metal Abundances of Subdwarf B Stars from SPY – a ...
... Metal Abundances of Subdwarf B Stars from SPY – a ...
Part 1
... (C) radiation and elements like carbon and nitrogen. (D) radioactive elements like uranium and plutonium. (E) helium, energy, and neutrinos. 12. In order to start nuclear fusion, a high temperature is required in the center of a star. This is to overcome (A) gravitational force between atoms. (B) nu ...
... (C) radiation and elements like carbon and nitrogen. (D) radioactive elements like uranium and plutonium. (E) helium, energy, and neutrinos. 12. In order to start nuclear fusion, a high temperature is required in the center of a star. This is to overcome (A) gravitational force between atoms. (B) nu ...
Star Jeopardy "Review #1
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
Gauss’s Law and Electric Potential
... Power. They have asked you to help design the air cleaners that will be used on a new coal burning power plant. Fly ash, which is very light (typically 1 * 10-4g) and small in diameter (typically 1mm), exits the boiler along with the hot gases. It is this fly ash with which you are concerned. Curren ...
... Power. They have asked you to help design the air cleaners that will be used on a new coal burning power plant. Fly ash, which is very light (typically 1 * 10-4g) and small in diameter (typically 1mm), exits the boiler along with the hot gases. It is this fly ash with which you are concerned. Curren ...
"Strange nuclear materials"()
... them. In radioactivity, some nuclei spontaneously eject particles and change into different kinds of nuclei without any prompting. Stable nuclei, however, need inducement before they will eject particles. In fact, any nucleus can be broken apart by hitting it hard enough with another nucleus. This c ...
... them. In radioactivity, some nuclei spontaneously eject particles and change into different kinds of nuclei without any prompting. Stable nuclei, however, need inducement before they will eject particles. In fact, any nucleus can be broken apart by hitting it hard enough with another nucleus. This c ...
Acceleration of Coronal Mass Ejection In Long Rising Solar
... (neutron star, city size), it releases the gravitational energy in the order of 1053 ergs, comparable to the energy released by the Sun over its whole main sequence life. The catastrophic consequence is a supernova explosion. • The product at the core is a neutral star, or even a black hole (if the ...
... (neutron star, city size), it releases the gravitational energy in the order of 1053 ergs, comparable to the energy released by the Sun over its whole main sequence life. The catastrophic consequence is a supernova explosion. • The product at the core is a neutral star, or even a black hole (if the ...
Stellar Physics 2
... A. It is a neutron star that does not lie in hydrostatic equilibrium and thus pulses in size and luminosity. B. It is a neutron star of which the magnetic field pulses in and out thus accelerating a stream of charged particles with each pulse. C. It is an asymmetric neutron star (due to an accretion ...
... A. It is a neutron star that does not lie in hydrostatic equilibrium and thus pulses in size and luminosity. B. It is a neutron star of which the magnetic field pulses in and out thus accelerating a stream of charged particles with each pulse. C. It is an asymmetric neutron star (due to an accretion ...
Space Study Guide
... All matter is made up of atoms. The number of protons within the nucleus determines the type of element. An element can have different forms, called isotopes, based on the number of neutrons in the nucleus. For example, an ordinary hydrogen nucleus contains just one proton. But deuterium, an isotope ...
... All matter is made up of atoms. The number of protons within the nucleus determines the type of element. An element can have different forms, called isotopes, based on the number of neutrons in the nucleus. For example, an ordinary hydrogen nucleus contains just one proton. But deuterium, an isotope ...
THE MASS OF A STELLAR BLACK HOLE Andrea Massi
... Hole? A Black Hole (BH) is the end stage of the evolution of a very massive star. Its matter is compressed so tightly that its gravitational pull becomes so strong that not even light can escape. ...
... Hole? A Black Hole (BH) is the end stage of the evolution of a very massive star. Its matter is compressed so tightly that its gravitational pull becomes so strong that not even light can escape. ...
Today`s Powerpoint
... d) are unable to explain how neutrinos oscillate between other types. e) cannot create controlled fusion reactions on Earth. ...
... d) are unable to explain how neutrinos oscillate between other types. e) cannot create controlled fusion reactions on Earth. ...
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.