SGES 1302 INTRODUCTION TO EARTH SYSTEM
... very nearly spatially flat, with local wrinkles where massive objects distort spacetime, just as the surface of a lake is. ...
... very nearly spatially flat, with local wrinkles where massive objects distort spacetime, just as the surface of a lake is. ...
Old Final
... A) the star vibrates B) the star spins and beams of radio waves cross the Earth periodically C) the star accretes matter causing periodic runaway fusion that we observe as pulses D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star abs ...
... A) the star vibrates B) the star spins and beams of radio waves cross the Earth periodically C) the star accretes matter causing periodic runaway fusion that we observe as pulses D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star abs ...
Standard Set 2 - Atascadero High School
... Way galaxy is a disc-shaped spiral galaxy with a bulging spherical center of stars is obtained from the location of stars in the galaxy. If viewed under a low-powered telescope from a planet in another galaxy, the Milky Way would look like a fuzzy patch of light. If viewed with more powerful telesco ...
... Way galaxy is a disc-shaped spiral galaxy with a bulging spherical center of stars is obtained from the location of stars in the galaxy. If viewed under a low-powered telescope from a planet in another galaxy, the Milky Way would look like a fuzzy patch of light. If viewed with more powerful telesco ...
Positions in the Solar System
... collapsed million own years gravity. after As the it did Big so, Bang, the matter thelarger gas star began to form. This star grew or stuck together to form the became contained within and dense it began enough to move for the inmore aforming first giant and larger as it collected more and of The st ...
... collapsed million own years gravity. after As the it did Big so, Bang, the matter thelarger gas star began to form. This star grew or stuck together to form the became contained within and dense it began enough to move for the inmore aforming first giant and larger as it collected more and of The st ...
Slide 1
... collapsed million own years gravity. after As the it did Big so, Bang, the matter thelarger gas star began to form. This star grew or stuck together to form the became contained within and dense it began enough to move for the inmore aforming first giant and larger as it collected more and of The st ...
... collapsed million own years gravity. after As the it did Big so, Bang, the matter thelarger gas star began to form. This star grew or stuck together to form the became contained within and dense it began enough to move for the inmore aforming first giant and larger as it collected more and of The st ...
Wh t i C l ? What is Cosmology?
... Number of stars in this shell is 4πr2n dr, where n is number density of stars Light from each star is L/4πr2, therefore light from shell is nL dr, independent of r therefore, in infinite universe, night sky should be infinitely bright (or at least as bright as typical stellar surface – stars themsel ...
... Number of stars in this shell is 4πr2n dr, where n is number density of stars Light from each star is L/4πr2, therefore light from shell is nL dr, independent of r therefore, in infinite universe, night sky should be infinitely bright (or at least as bright as typical stellar surface – stars themsel ...
White Dwarf Stars
... A. Absolutely everything in the Universe is expanding B. The Universe expanded faster than the speed of light in its very early phases C. The expansion is now slowing down because of the mutual gravitational attraction of galaxies in the Universe D. The effects of dark matter are dominant over the e ...
... A. Absolutely everything in the Universe is expanding B. The Universe expanded faster than the speed of light in its very early phases C. The expansion is now slowing down because of the mutual gravitational attraction of galaxies in the Universe D. The effects of dark matter are dominant over the e ...
Integrative Studies 410 Our Place in the Universe
... – Solar System: the orbital velocities of planets determined by mass of Sun – Galaxy: orbital velocities of stars are determined by total mass of the galaxy contained within that star’s orbit ...
... – Solar System: the orbital velocities of planets determined by mass of Sun – Galaxy: orbital velocities of stars are determined by total mass of the galaxy contained within that star’s orbit ...
How big is the Universe? - Contemporary Science Issues
... infinite number of stars in our infinitely large Universe, each one emitting light. • If the number of stars is infinite then each patch of the sky would be covered by a star. Every line of sight would end on the surface of a star ...
... infinite number of stars in our infinitely large Universe, each one emitting light. • If the number of stars is infinite then each patch of the sky would be covered by a star. Every line of sight would end on the surface of a star ...
Formation of the Solar System
... also incorporates interstellar dust as an essential ingredient in the formation of the planets. This theory claims that the dust grains of the interstellar medium helped cool the nebular cloud by radiating heat away, and also acted as a foundation upon which atoms could attach. These properties of t ...
... also incorporates interstellar dust as an essential ingredient in the formation of the planets. This theory claims that the dust grains of the interstellar medium helped cool the nebular cloud by radiating heat away, and also acted as a foundation upon which atoms could attach. These properties of t ...
November 2013 - Pomona Valley Amateur Astronomers
... orbit around a central black hole that starts less than about 600 solar masses but can grow. Those stars attract more stars. As a disk of orbiting stars takes shape around one hole, the same is happening throughout the universe at other centers. The first galaxies are being organized and around each ...
... orbit around a central black hole that starts less than about 600 solar masses but can grow. Those stars attract more stars. As a disk of orbiting stars takes shape around one hole, the same is happening throughout the universe at other centers. The first galaxies are being organized and around each ...
Phy107Fall06Lect19
... • Extrapolating backwards indicates that all the galaxies originated from the same source 14 billion years ago. • In 1964 radiation from the early stages of that explosion was detected. – Again the Doppler shift was the key since the waves were shifted to low frequency - microwave Phy107 Fall 2006 ...
... • Extrapolating backwards indicates that all the galaxies originated from the same source 14 billion years ago. • In 1964 radiation from the early stages of that explosion was detected. – Again the Doppler shift was the key since the waves were shifted to low frequency - microwave Phy107 Fall 2006 ...
Stars and Galaxies - Lunar and Planetary Institute
... from all directions at once radiation left over from the Big Bang In June 1995, scientists detected helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen (75%) and helium (25%) was created at the beginning of the universe ...
... from all directions at once radiation left over from the Big Bang In June 1995, scientists detected helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen (75%) and helium (25%) was created at the beginning of the universe ...
Galaxies and the Universe - Grandview Independent School
... including the eight major planets, their satellites, and all the smaller pieces such as asteroids and comets • formed around 4.6 billion years ago What is ...
... including the eight major planets, their satellites, and all the smaller pieces such as asteroids and comets • formed around 4.6 billion years ago What is ...
Lecture4 - University of Waterloo
... The most commonly occurring minerals are made of the most commonly occurring elements” In the inner SS these are dominantly O, Si, Mg, and Fe with lesser amounts of things like Na, Al, Ca, and Ni. The minerals we find are vastly dominated by SiO4 – these are called ...
... The most commonly occurring minerals are made of the most commonly occurring elements” In the inner SS these are dominantly O, Si, Mg, and Fe with lesser amounts of things like Na, Al, Ca, and Ni. The minerals we find are vastly dominated by SiO4 – these are called ...
WFPC2
... WFPC2 image of a spiral-shaped disk of hot gas in the core of active galaxy M87. HST measurements show the disk is rotating so rapidly it contains a massive black hole at its hub. ...
... WFPC2 image of a spiral-shaped disk of hot gas in the core of active galaxy M87. HST measurements show the disk is rotating so rapidly it contains a massive black hole at its hub. ...
Introduction to the Universe
... of the disc-shaped Milky Way galaxy, which spans 100,000 light years. Students know galaxies are made of billions of stars and comprise most of the visible mass of the universe. ...
... of the disc-shaped Milky Way galaxy, which spans 100,000 light years. Students know galaxies are made of billions of stars and comprise most of the visible mass of the universe. ...
III. Contents of The Universe
... All matter that exists now, in the past and in the future. Everything in space and time. There is only one universe. Anything that exists is part of the universe. ...
... All matter that exists now, in the past and in the future. Everything in space and time. There is only one universe. Anything that exists is part of the universe. ...
How Far is far ?
... both ends of the baseline. The angles to the object from each starting point are different. • A little trigonometry shows how far out each line of sight meets the other. ...
... both ends of the baseline. The angles to the object from each starting point are different. • A little trigonometry shows how far out each line of sight meets the other. ...
Measuring Distances: Mph (miles per hour): miles traveled per hour
... Warp: doesn’t exist except on “Star Trek” – made up speed that is faster than the speed of light A light year is defined by how far a beam of light travels in one year (6 trillion miles ...
... Warp: doesn’t exist except on “Star Trek” – made up speed that is faster than the speed of light A light year is defined by how far a beam of light travels in one year (6 trillion miles ...
Lambda-CDM model
The ΛCDM (Lambda cold dark matter) or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains a cosmological constant, denoted by Lambda (Greek Λ), associated with dark energy, and cold dark matter (abbreviated CDM). It is frequently referred to as the standard model of Big Bang cosmology, because it is the simplest model that provides a reasonably good account of the following properties of the cosmos: the existence and structure of the cosmic microwave background the large-scale structure in the distribution of galaxies the abundances of hydrogen (including deuterium), helium, and lithium the accelerating expansion of the universe observed in the light from distant galaxies and supernovaeThe model assumes that general relativity is the correct theory of gravity on cosmological scales.It emerged in the late 1990s as a concordance cosmology, after a period of time when disparate observed properties of the universe appeared mutually inconsistent, and there was no consensus on the makeup of the energy density of the universe.The ΛCDM model can be extended by adding cosmological inflation, quintessence and other elements that are current areas of speculation and research in cosmology.Some alternative models challenge the assumptions of the ΛCDM model. Examples of these are modified Newtonian dynamics, modified gravity and theories of large-scale variations in the matter density of the universe.