Vocabulary---fill in the blank/writing complete definitions
... Vocabulary---fill in the blank/writing complete definitions Concepts Know the steps in the scientific method Understand theories of the universe formation Explain differences between geocentric and sun-centered solar system models Know details about the 3 things that happened as a solar nebula forms ...
... Vocabulary---fill in the blank/writing complete definitions Concepts Know the steps in the scientific method Understand theories of the universe formation Explain differences between geocentric and sun-centered solar system models Know details about the 3 things that happened as a solar nebula forms ...
Model Atmosphere Results (Kurucz 1979, ApJS, 40, 1)
... ODF Representation • DF as step functions • Pre-computed for grid over range in: temperature electron density abundance microturbulent velocity (range in line opacity) T = 9120 K ...
... ODF Representation • DF as step functions • Pre-computed for grid over range in: temperature electron density abundance microturbulent velocity (range in line opacity) T = 9120 K ...
Students will understand that…
... Preface: This unit has been created as a model for teachers in their designing or redesigning of course curricula. It is by no means intended to be inclusive; rather it is meant to be a springboard for teacher thought and creativity. The information we have included represents one possibility for d ...
... Preface: This unit has been created as a model for teachers in their designing or redesigning of course curricula. It is by no means intended to be inclusive; rather it is meant to be a springboard for teacher thought and creativity. The information we have included represents one possibility for d ...
ppt document
... The constellations that are found on the path of the sun (the ecliptic) are called the constellations of the zodiac. During the year the sun moves along the ecliptic spending approximately one month in each of the 12 constellations of the zodiac. The sun moves from West to East through these constel ...
... The constellations that are found on the path of the sun (the ecliptic) are called the constellations of the zodiac. During the year the sun moves along the ecliptic spending approximately one month in each of the 12 constellations of the zodiac. The sun moves from West to East through these constel ...
Global Warming Fall 2013 Building Up the nth
... That maximum stellar flux will be the solar constant at the given orbital distance, which we said we can assume to be 1366 W m−2 . Also, we can assume the albedo of the surface to be 0.3. Therefore, at high noon on the equator, the surface temperature, Tg would be ≈ 360 K. That is HOT! Water boils a ...
... That maximum stellar flux will be the solar constant at the given orbital distance, which we said we can assume to be 1366 W m−2 . Also, we can assume the albedo of the surface to be 0.3. Therefore, at high noon on the equator, the surface temperature, Tg would be ≈ 360 K. That is HOT! Water boils a ...
Neutrino hot dark matter and hydrodynamics of structure formation
... • Lynden Bell: violent relaxation, faster than collisional • Relaxation in time-dependent potential: every object (individual particle, galaxy) exchanges energy with the whole cluster • Iff phase space density becomes uniform, then Fermi-Dirac distribution • X-ray radiation helps to maintain the vir ...
... • Lynden Bell: violent relaxation, faster than collisional • Relaxation in time-dependent potential: every object (individual particle, galaxy) exchanges energy with the whole cluster • Iff phase space density becomes uniform, then Fermi-Dirac distribution • X-ray radiation helps to maintain the vir ...
slides - University of Mississippi Physics
... Velocity of a gas particles increases with the temperature, • Temperature is a measure of how fast particles are moving. ...
... Velocity of a gas particles increases with the temperature, • Temperature is a measure of how fast particles are moving. ...
A105 Stars and Galaxies - Department of Astronomy
... Warning Signs of Bad Science How is it announced? Is the source reliable? How good is the evidence? is it anecdotal? does it appeal to authority? does it fit what you already know? does it violate widely-accepted laws or theories? is contrary evidence ignored? ...
... Warning Signs of Bad Science How is it announced? Is the source reliable? How good is the evidence? is it anecdotal? does it appeal to authority? does it fit what you already know? does it violate widely-accepted laws or theories? is contrary evidence ignored? ...
Journey to the Stars Educator`s Guide
... We can see stars with the naked eye. But to observe them in detail, we depend on technology on the ground and in space. Ground-based telescopes enable scientists to see visible light, radio waves, and some infrared light. Satellites that orbit Earth, orbit the Sun, or journey through space allow sci ...
... We can see stars with the naked eye. But to observe them in detail, we depend on technology on the ground and in space. Ground-based telescopes enable scientists to see visible light, radio waves, and some infrared light. Satellites that orbit Earth, orbit the Sun, or journey through space allow sci ...
Document
... Required for most stars with Te < 10000 K, corresponds to convective instability => Microturbulence ~ convection, at least in cooler stars Detectable even in broad-line stars – much data ...
... Required for most stars with Te < 10000 K, corresponds to convective instability => Microturbulence ~ convection, at least in cooler stars Detectable even in broad-line stars – much data ...
Topic 7_2_Ext B__Nuclear stability
... When such a star becomes iron, it will have no more radiation pressure to oppose gravity. It will collapse (due to gravity), and its complex iron nuclei will decay into ALL NEUTRONS! FYI: This is called the IRON CATASTROPHE. ...
... When such a star becomes iron, it will have no more radiation pressure to oppose gravity. It will collapse (due to gravity), and its complex iron nuclei will decay into ALL NEUTRONS! FYI: This is called the IRON CATASTROPHE. ...
The Great Bear and the Little Bear
... • Stars are balls of hot gas. • They are much larger than planets and much further from Earth. • The sun is the closest star to Earth. • Most of the gas in the inside of a star is hydrogen and its temperature is over 20 million degrees Fahrenheit. There is also helium, a gas that is formed when the ...
... • Stars are balls of hot gas. • They are much larger than planets and much further from Earth. • The sun is the closest star to Earth. • Most of the gas in the inside of a star is hydrogen and its temperature is over 20 million degrees Fahrenheit. There is also helium, a gas that is formed when the ...
Stellar Astrophysics: Introduction Q. Daniel Wang Astronomy Department University of Massachusetts
... where M is any constant. We then obtain, for example, M αr −1 ...
... where M is any constant. We then obtain, for example, M αr −1 ...
Unit 1 The Universe
... • Stars form in nebulae. • Nebula -large cloud of gas and dust. It is composed mainly of hydrogen and helium, with small amounts of heavier elements. ...
... • Stars form in nebulae. • Nebula -large cloud of gas and dust. It is composed mainly of hydrogen and helium, with small amounts of heavier elements. ...
Spectral Lines
... • Light of all wavelengths shines on an atom. • Only light of an energy equal to the difference between “floors” will be absorbed and cause electrons to jump up in floors. • The rest of the light passes on by to our detector. • We see an absorption spectrum: light at all wavelengths minus those spec ...
... • Light of all wavelengths shines on an atom. • Only light of an energy equal to the difference between “floors” will be absorbed and cause electrons to jump up in floors. • The rest of the light passes on by to our detector. • We see an absorption spectrum: light at all wavelengths minus those spec ...
White Dwarfs - Chandra X
... pressure necessary to keep it from collapsing further? It didn't seem possible, yet there they were, glowing dimly and reminding scientists that "the fault is not in the stars, but in their theories," to paraphrase Shakespeare. The paradox was not resolved until the quantum theory of matter was deve ...
... pressure necessary to keep it from collapsing further? It didn't seem possible, yet there they were, glowing dimly and reminding scientists that "the fault is not in the stars, but in their theories," to paraphrase Shakespeare. The paradox was not resolved until the quantum theory of matter was deve ...
Homologous Stellar Models and Polytropes Main Sequence Stars
... at higher masses is due to the increased contribution of radiation pressure in the central core, which helps support the star and decreases the central temperature slightly. A flattening also occurs at the very low masses due to the increasing importance of convection for stellar structure. • Homolo ...
... at higher masses is due to the increased contribution of radiation pressure in the central core, which helps support the star and decreases the central temperature slightly. A flattening also occurs at the very low masses due to the increasing importance of convection for stellar structure. • Homolo ...
L5 Protoplanetary disks Part I
... to use the structure of the solar system as we observe it now to derive the structure of the disk from which the planets formed. The solar system was formed from a gas cloud which must have had solar composition. The minimum mass of the nebula is found by replenishing the planet’s (observed) composi ...
... to use the structure of the solar system as we observe it now to derive the structure of the disk from which the planets formed. The solar system was formed from a gas cloud which must have had solar composition. The minimum mass of the nebula is found by replenishing the planet’s (observed) composi ...
