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Notes - Michigan State University
Notes - Michigan State University

The Nature of Light
The Nature of Light

... spectrum, this stretch has come to be called "redshift”. The greater the distance, the greater the redshift <====> the Hubble law. What's the actual distance to these quasars: about 15 billion light-years! ...
January 28
January 28

... • 7-10 pm on Sundays and Tuesdays • First Help Session will be Feb. 3 in Kendade (email on room number later) ...
Supernovae and compact objects
Supernovae and compact objects

... of Kepler’s Laws. Kepler himself saw another supernova in 1604. The supernovae played a critical role in the history of science because they provided clear falsification of the idea that the stars were eternal and unchanging, which had dominated Western scientific thought since the time of the ancie ...
Stars!!!!
Stars!!!!

... • Super Nova is when a giant or super giant star explodes • What is left over is called a neutron star – Smaller and denser than white dwarfs – They can have the same mass as the sun but can be the size of an asteroid ...
What Does an Astronomer Do?
What Does an Astronomer Do?

... across. A light-year is the distance it would take for light to travel in one year. Since light travels at a speed of about 186,000 miles per second, a light-year is a huge distance! The universe is made up of an uncountable number of galaxies. Only the nearest objects in our solar system can be rea ...
Evolution and nucleosynthesis of extremely metal
Evolution and nucleosynthesis of extremely metal

Dark Matter Mathematics
Dark Matter Mathematics

...  BUT . . . Velocities do not drop off  Result: Dark Matter mass is about 10x Luminous Matter mass ...
Notes: Sun-Earth-Moon System
Notes: Sun-Earth-Moon System

Star Formation Triggers More Star Formation
Star Formation Triggers More Star Formation

Solar System
Solar System

... • The planets form two main families: – solid rocky inner planets – gaseous/liquid outer planets ...
second sun - royal device
second sun - royal device

... One thing is sure, satellites won’t last long. They will go out of order in few weeks time for earth axis tilting (CROP CIRCLE credit). Using Hubble they are following the S.S. orbit, because they hope it will at least happen as on the Great Flood time, but….. They do not really know the final happe ...
4 - Princeton CS
4 - Princeton CS

... Formation of structure in the Universe (PM code) Evolution of the Universe is an initial value problem ...
Bird Navigation - Model Research
Bird Navigation - Model Research

... a) Compensated for normal sun movement b) Followed sun when it was shifted by mirrors (so not magnetism, etc.) c) 6hr clock shift caused 90 deg shift d) `Sun’ kept stationary; birds changed their angle to it. ...
Stages 7 to 9 - Sun
Stages 7 to 9 - Sun

... Off the Main Sequence - The Evolution of a Sun-like Star Stages 7 - 9 While on the main sequence, the star is burning hydrogen. It’s luminosity is determined by the stars mass. The most intense fusion is occurring at the center regions of the core (highest pressure and temperature). ...
AS 701 - INTRODUCTION TO ASTROPHYSICS COURSE OVERVIEW - FALL 2013
AS 701 - INTRODUCTION TO ASTROPHYSICS COURSE OVERVIEW - FALL 2013

... and gravitational physics, properties of stars, stellar structure, stellar evolution, dynamics of binary stars systems and star clusters, types of galaxies, galactic structure and dynamics, active galaxies and some cosmological topics. COURSE STRUCTURE AND PHILOSOPHY: The course is intended to provi ...
Here
Here

... • If the initial mass of the star is more than about 8 solar masses, the core will be too massive to form a white dwarf, since at that stage the gravity is stronger than the electron degeneracy pressure. The collapse continues. • Protons and electrons are fused to form neutrons and neutrinos. The co ...
Pre-Main Sequence Evolution
Pre-Main Sequence Evolution

... GM(r) ⇢ · 4⇡r2 dr r ...
ppt - University of Cambridge
ppt - University of Cambridge

... – Then we compare how bright they look to us and how bright they are as calculated from their blink rate. – Distance ...
Review Powerpoint #4
Review Powerpoint #4

... 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain information about distances and properties of components in the universe. 8.8d- Model and describe how light years are used to measure distances and sizes in the universe. ...
Benchmark review power point
Benchmark review power point

... 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain information about distances and properties of components in the universe. 8.8d- Model and describe how light years are used to measure distances and sizes in the universe. ...
astronomy 101 from
astronomy 101 from

Astronomy 1010 Planetary Astronomy Sample Questions for Exam 1
Astronomy 1010 Planetary Astronomy Sample Questions for Exam 1

Teachers Guide - Patrick Tevlin Music
Teachers Guide - Patrick Tevlin Music

... reasons like the tug of the other planets - especially Jupiter. In 1859 it was noticed that after the known Newtonian effects were removed, Mercury still had a significant precession. They thought it was evidence of another planet near the Sun, which they named Vulcan. However, Vulcan didn’t exist. ...
General Relativity for Teachers
General Relativity for Teachers

... reasons like the tug of the other planets - especially Jupiter. In 1859 it was noticed that after the known Newtonian effects were removed, Mercury still had a significant precession. They thought it was evidence of another planet near the Sun, which they named Vulcan. However, Vulcan didn’t exist. ...
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Standard solar model

The standard solar model (SSM) is a mathematical treatment of the Sun as a spherical ball of gas (in varying states of ionisation, with the hydrogen in the deep interior being a completely ionised plasma). This model, technically the spherically symmetric quasi-static model of a star, has stellar structure described by several differential equations derived from basic physical principles. The model is constrained by boundary conditions, namely the luminosity, radius, age and composition of the Sun, which are well determined. The age of the Sun cannot be measured directly; one way to estimate it is from the age of the oldest meteorites, and models of the evolution of the Solar System. The composition in the photosphere of the modern-day Sun, by mass, is 74.9% hydrogen and 23.8% helium. All heavier elements, called metals in astronomy, account for less than 2 percent of the mass. The SSM is used to test the validity of stellar evolution theory. In fact, the only way to determine the two free parameters of the stellar evolution model, the helium abundance and the mixing length parameter (used to model convection in the Sun), are to adjust the SSM to ""fit"" the observed Sun.
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