Astrobiology 101
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
Stellar Deaths - Mid
... - As core collapses Contraction stopped by the Pauli exclusion principle: two objects cannot occupy the same space. ...
... - As core collapses Contraction stopped by the Pauli exclusion principle: two objects cannot occupy the same space. ...
Chapter 14
... High Mass Stars – Less than 100 M on Main Sequence – Become Neutron Stars (1.4M < M < 3M) » Neutron Degeneracy Pressure ...
... High Mass Stars – Less than 100 M on Main Sequence – Become Neutron Stars (1.4M < M < 3M) » Neutron Degeneracy Pressure ...
Lecture 1
... During the AGB phase, spare neutrons react with other elements in the star to build up "heavier" elements, all the way to Pb. During the planetary nebula phase, these elements (along with the H and He) are put back into space for future generations of stars to use. ...
... During the AGB phase, spare neutrons react with other elements in the star to build up "heavier" elements, all the way to Pb. During the planetary nebula phase, these elements (along with the H and He) are put back into space for future generations of stars to use. ...
Lailaigib Lifecycle Of A Star
... A neutron star is about 20 km in diameter and the mass of about 1.4 times that of the Sun. This means that a neutron star is so bigger that on Earth, one teaspoonful would weigh a billion tons. Its small size and high density, a neutron star possesses a surface gravitational field. http://imagine.gs ...
... A neutron star is about 20 km in diameter and the mass of about 1.4 times that of the Sun. This means that a neutron star is so bigger that on Earth, one teaspoonful would weigh a billion tons. Its small size and high density, a neutron star possesses a surface gravitational field. http://imagine.gs ...
Space Science cource, Department of Physics, Faculty of
... Mass-accretion and outflows of protostars ...
... Mass-accretion and outflows of protostars ...
The big bang left the universe with its first atoms
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
Where Did All The Elements Come From??
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
... The heaviest elements are created in supernovae, the fantastic death of supergiant stars. As the core of the supergiant becomes saturated with iron, its pressure and temperature increase. Eventually, the blackbody radiation from the core produces gamma rays powerful enough to break apart the iron a ...
Final Review Questions. 1. Compare the atmospheric scale height of
... 37. The Chandrasekhar Mass (15) Consider a star supported solely by degeneracy pressure. Recall that such stars have the remarkable property that they have a maximum mass: hydrostatic equilibrium is not possible above a certain mass Mmax . Derive an order of magnitude estimate of Mmax for a white dw ...
... 37. The Chandrasekhar Mass (15) Consider a star supported solely by degeneracy pressure. Recall that such stars have the remarkable property that they have a maximum mass: hydrostatic equilibrium is not possible above a certain mass Mmax . Derive an order of magnitude estimate of Mmax for a white dw ...
08 October: Stellar life after the Main Sequence
... As cores contract, the density goes to “astronomical” levels, matter acts in funny ways • Gas in this room, the “perfect gas law” PV=nRT. Pressure depends on both density and temperature • Extremely dense, “degenerate” gas PV=Kn. Pressure depends only on density • Demo ...
... As cores contract, the density goes to “astronomical” levels, matter acts in funny ways • Gas in this room, the “perfect gas law” PV=nRT. Pressure depends on both density and temperature • Extremely dense, “degenerate” gas PV=Kn. Pressure depends only on density • Demo ...
Stellar Evolution Diagram Answer Key:
... The energy for fusion comes from the massive amounts of gravity and pressure. This causes Hydrogen atoms to collide and fuse into helium atoms. The star is considered stable because the force of fusion causing the star to expand is equal to the force of gravity. This stage ends when it runs out of f ...
... The energy for fusion comes from the massive amounts of gravity and pressure. This causes Hydrogen atoms to collide and fuse into helium atoms. The star is considered stable because the force of fusion causing the star to expand is equal to the force of gravity. This stage ends when it runs out of f ...
Planet-like Companion to a Brown Dwarf
... A planet-like object circling a brown dwarf has been discovered that seems to contradict the latest theories on planet formation. Estimated to be approximately seven times the mass of Jupiter, it is the appropriate size to be described as a large planet. But the object, known as 2M J044144 B, is bel ...
... A planet-like object circling a brown dwarf has been discovered that seems to contradict the latest theories on planet formation. Estimated to be approximately seven times the mass of Jupiter, it is the appropriate size to be described as a large planet. But the object, known as 2M J044144 B, is bel ...
Balloon Model of the Life Cycle of Stars
... the very large blue and red balloons as large as possible without popping them. ...
... the very large blue and red balloons as large as possible without popping them. ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... made of) were made in the big bang. Many of the helium atoms in the Universe were also made in the big bang. The other atoms were made inside of stars or during explosions of stars. When the Sun becomes a red giant, carbon and maybe oxygen will be made in its core. But the core will be the left-over ...
... made of) were made in the big bang. Many of the helium atoms in the Universe were also made in the big bang. The other atoms were made inside of stars or during explosions of stars. When the Sun becomes a red giant, carbon and maybe oxygen will be made in its core. But the core will be the left-over ...
Galaxies and Stars Questions KEY
... Galaxies and Stars Questions KEY 1. What are galaxies? Galaxies are massive systems, bound by gravity, and consisting of stars and remnants of dead stars; galaxies are an interstellar medium of gas and dust. 2. What are the types or categories for galaxies? There are three major types of galaxies: s ...
... Galaxies and Stars Questions KEY 1. What are galaxies? Galaxies are massive systems, bound by gravity, and consisting of stars and remnants of dead stars; galaxies are an interstellar medium of gas and dust. 2. What are the types or categories for galaxies? There are three major types of galaxies: s ...
The universe - Villanova University
... Stuff like iron, nickel, uranium comes from the destruction (explosion) of stars. ...
... Stuff like iron, nickel, uranium comes from the destruction (explosion) of stars. ...
- Lorentz Center
... gravitational binding energies per gram less than that of nuclear burning: 1 MeV per baryon ...
... gravitational binding energies per gram less than that of nuclear burning: 1 MeV per baryon ...
Stellar Evolution
... around a sun-like star that is dying. -White dwarfs – As the planetary nebula disperses, gravity causes the remaining matter to collapse inward…what is left is hot & dense…it is called a white dwarf. -When a white dwarf no longer gives off light, it forms a black dwarf. ...
... around a sun-like star that is dying. -White dwarfs – As the planetary nebula disperses, gravity causes the remaining matter to collapse inward…what is left is hot & dense…it is called a white dwarf. -When a white dwarf no longer gives off light, it forms a black dwarf. ...
Stellar evolution
... • The supernova can last weeks or months, and release as much energy as the sun does in its entire lifespan. • The supernova is a main source of heavy elements in the universe. • The remaining core will collapse into either a neutron star or a black hole. ...
... • The supernova can last weeks or months, and release as much energy as the sun does in its entire lifespan. • The supernova is a main source of heavy elements in the universe. • The remaining core will collapse into either a neutron star or a black hole. ...
Order-of-Magnitude Physics – Solution Set 4
... between C and O). Then we get ve ∼ 8 × 1010 cm/ s which exceeds the speed of light c but is close enough to it (factor of 3) that the actual speed must be about c — i.e., the electrons are mildly relativistic. The astronomers reading this will recognize this to be true because our white dwarf of mas ...
... between C and O). Then we get ve ∼ 8 × 1010 cm/ s which exceeds the speed of light c but is close enough to it (factor of 3) that the actual speed must be about c — i.e., the electrons are mildly relativistic. The astronomers reading this will recognize this to be true because our white dwarf of mas ...
Space Science Review Vocabulary: Nebula Proto Star Main
... How do pressure and gravity change throughout the life of a star? How gravity and pressure affect equilibrium in a main sequence star? Characteristics of the phases in the Life Cycle of a Star The EM Spectrum The HR Diagram – know how to relate temperature to luminosity or absolute magnitude on the ...
... How do pressure and gravity change throughout the life of a star? How gravity and pressure affect equilibrium in a main sequence star? Characteristics of the phases in the Life Cycle of a Star The EM Spectrum The HR Diagram – know how to relate temperature to luminosity or absolute magnitude on the ...
Nuclear Nomenclature
... Neutron Stars and Black Holes • If matter is forced to even higher densities than in a white dwarf, 106 times that of water, it collapses but could stabilize to form a neutron star with aid of additional pressure from nucleon degeneracy and the strong nuclear force. ...
... Neutron Stars and Black Holes • If matter is forced to even higher densities than in a white dwarf, 106 times that of water, it collapses but could stabilize to form a neutron star with aid of additional pressure from nucleon degeneracy and the strong nuclear force. ...
2017 New Jersey Science Olympiad Union County College
... able to tell if the answer is right and wrong (About 2-3 sentences should suffice.) ...
... able to tell if the answer is right and wrong (About 2-3 sentences should suffice.) ...