Period 10 Activity Solutions: Nuclear Reactions
... b) Make a graph on the grid below of the voltages you measured versus time elapsed. c) Use your graph to find the half-life of the capacitor discharge. _________________ 5) Radioactive decay modeled by capacitor discharge with background radiation Next, we use the equipment to produce a more realist ...
... b) Make a graph on the grid below of the voltages you measured versus time elapsed. c) Use your graph to find the half-life of the capacitor discharge. _________________ 5) Radioactive decay modeled by capacitor discharge with background radiation Next, we use the equipment to produce a more realist ...
HW9_Answers
... formation of a planetary nebula. A lower mass star cannot convert carbon into anything else because it does not get hot enough, and so the carbon core is the final stage of evolution. When the rest of the star is peeled off, the core is exposed and is now referred to as a white dwarf. ...
... formation of a planetary nebula. A lower mass star cannot convert carbon into anything else because it does not get hot enough, and so the carbon core is the final stage of evolution. When the rest of the star is peeled off, the core is exposed and is now referred to as a white dwarf. ...
The amazing lives of two stars
... Earth. A new state of matter emerges when gravity wins its lengthy struggle with radiation pressure. All the electrons and nuclei in the star are packed like droves of tiny billiard balls into the smallest volume possible. Only the electrons' pressure prevents further compaction. The white dwarf sti ...
... Earth. A new state of matter emerges when gravity wins its lengthy struggle with radiation pressure. All the electrons and nuclei in the star are packed like droves of tiny billiard balls into the smallest volume possible. Only the electrons' pressure prevents further compaction. The white dwarf sti ...
ppt
... The crust consists of several layers of different nuclear composition and as accreted matter gets pushed further into the star it undergoes a series of nuclear reactions, including electron captures, neutron emission and pycnonuclear reactions (Sato 1979; Haensel & Zdunik 1990). ...
... The crust consists of several layers of different nuclear composition and as accreted matter gets pushed further into the star it undergoes a series of nuclear reactions, including electron captures, neutron emission and pycnonuclear reactions (Sato 1979; Haensel & Zdunik 1990). ...
Applications of gamma spectrometry
... 2) Minimal background – without nuclear reactions on target or surrounding material 3) Dominant excitation by E2 transitions (v/c relatively small → B(M) << B(E), E1 suppressed, B(EI)>>B(EI+1) for I > 1 → excitation of rotational bands with E2 transitions 4) Possibility of choice of case with excita ...
... 2) Minimal background – without nuclear reactions on target or surrounding material 3) Dominant excitation by E2 transitions (v/c relatively small → B(M) << B(E), E1 suppressed, B(EI)>>B(EI+1) for I > 1 → excitation of rotational bands with E2 transitions 4) Possibility of choice of case with excita ...
V Example: our SUN (G2V)
... enough material is deposited on a white dwarf so that is exceeds the Chandrasekhar limit and collapses to a neutron star. Both types of supernova drastically alter the stars and are the result of the collapse stellar core. In a nova no collapse occurs, just the fusion of hydrogen on the surface of t ...
... enough material is deposited on a white dwarf so that is exceeds the Chandrasekhar limit and collapses to a neutron star. Both types of supernova drastically alter the stars and are the result of the collapse stellar core. In a nova no collapse occurs, just the fusion of hydrogen on the surface of t ...
Stars, H-R and Life Cycle of Star
... Two astronomers discovered a relationship between the absolute magnitude (real brightness) of a star and its surface temperature. They plotted the data on a graph. ...
... Two astronomers discovered a relationship between the absolute magnitude (real brightness) of a star and its surface temperature. They plotted the data on a graph. ...
Atypical thermonuclear supernovae from tidally crushed white dwarfs
... Several snapshots taken from our numerical simulations of a 0.2 M white dwarf approaching a 103 M black hole on a parabolic orbit with pericenter distance well within the tidal radius (rmin = rT /12) are shown in Figure 1. While falling inwards towards the hole, the star develops a quadrupole dist ...
... Several snapshots taken from our numerical simulations of a 0.2 M white dwarf approaching a 103 M black hole on a parabolic orbit with pericenter distance well within the tidal radius (rmin = rT /12) are shown in Figure 1. While falling inwards towards the hole, the star develops a quadrupole dist ...
Neutron Stars and Black Holes - School
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
15 high school students from Illinois, Indiana, and Michigan (7M / 8F)
... On-Line Interactives in Nuclear Astrophysics The ten part series will begin with three primers – introductions to astronomy, astrophysics and nuclear physics and then move through the subject matter, ending with the future of nuclear astrophysics. ...
... On-Line Interactives in Nuclear Astrophysics The ten part series will begin with three primers – introductions to astronomy, astrophysics and nuclear physics and then move through the subject matter, ending with the future of nuclear astrophysics. ...
KEY Unit 10‐11 Test Review: Characteristics of the Universe
... than those in galaxies closer to the Earth. Astronomers theorize this is occurring because distant galaxies are moving _AWAY__ from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the ...
... than those in galaxies closer to the Earth. Astronomers theorize this is occurring because distant galaxies are moving _AWAY__ from Earth faster than galaxies that are nearby. 10. Betelgeuse is one of the brightest stars in the night sky even though it is 640 LY from Earth. Barnard‛s Star, on the ...
White Dwarfs
... high-energy particles. At this time, no star capable of producing a supernova is less than 50 ly away. Most massive star known (~ 100 solar masses) is ~ 25,000 ly from Earth. ...
... high-energy particles. At this time, no star capable of producing a supernova is less than 50 ly away. Most massive star known (~ 100 solar masses) is ~ 25,000 ly from Earth. ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • Gravity shrinks the inert helium core and surrounding shell of hydrogen • The shell of hydrogen becomes hot for fusion • This is called hydrogen-shell burning ...
... • Gravity shrinks the inert helium core and surrounding shell of hydrogen • The shell of hydrogen becomes hot for fusion • This is called hydrogen-shell burning ...
No Slide Title
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
Life Cycle of Stars
... collapse so it folds in on itself towards the center of that cloud it gets denser and denser and hotter and hotter 3. Eventually, the particles of that the gas and the dust are made of are brought so close together that they start to stick together, they start to fuse and that is the energy source o ...
... collapse so it folds in on itself towards the center of that cloud it gets denser and denser and hotter and hotter 3. Eventually, the particles of that the gas and the dust are made of are brought so close together that they start to stick together, they start to fuse and that is the energy source o ...
ES High mass star life cycle plus black holes
... Will we be killed by a supernova? Explain why or why not? What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the ...
... Will we be killed by a supernova? Explain why or why not? What is the life cycle of a low mass star (5 stages)? What is the life cycle of a high mass star? What is the heaviest element forms in the center of a high mass star? Why is supernova crucial to our existence? Where is calcium formed in the ...
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.