The formation and evolution of galaxies
... • Of all the matter in the Universe, only 16% of it is ordinary matter (protons, electrons, neutrinos etc.). The rest is due to dark matter, an unknown component that interacts only through gravity. • Only 5% of ordinary matter is visible! i.e. the stars and gas we see only make up <1% of all the ...
... • Of all the matter in the Universe, only 16% of it is ordinary matter (protons, electrons, neutrinos etc.). The rest is due to dark matter, an unknown component that interacts only through gravity. • Only 5% of ordinary matter is visible! i.e. the stars and gas we see only make up <1% of all the ...
Goals of the day Clickers Order of Magnitude Astronomy
... the Andromeda galaxy (the other big galaxy in the local group). The remnants from such explosions disperse in about 10,000 years. A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, b ...
... the Andromeda galaxy (the other big galaxy in the local group). The remnants from such explosions disperse in about 10,000 years. A. The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B. In reality, the supernova remnant has already dispersed, b ...
Chapter 1 Section Misconception Truth Distances in the Universe
... of nearby objects just as clearly in a space 10 times larger. Big ground‐based telescopes are already seeing most of the way back to the edge of the Universe (actually, to the beginning of time), so it is not possible to see 10 times farther. ...
... of nearby objects just as clearly in a space 10 times larger. Big ground‐based telescopes are already seeing most of the way back to the edge of the Universe (actually, to the beginning of time), so it is not possible to see 10 times farther. ...
Gravity, General Relativity, and Dark Matter
... It gets slightly more complicated before we are done, but we need to understand one more thing about general relativity to see how this all ties together. General relativity agrees with Newton’s description that an object moves in a straight line in space unless there is a force acting on it. Howeve ...
... It gets slightly more complicated before we are done, but we need to understand one more thing about general relativity to see how this all ties together. General relativity agrees with Newton’s description that an object moves in a straight line in space unless there is a force acting on it. Howeve ...
Model answer
... the retina is closed to the eye lens and this causes long sight 2- It passes through the lens without refraction 4-c1- The distance covered by the body = 44 x 1.5 = 66 m 2- The displacement = the diameter of the circle = 14 m 3- The average speed = total distance = 66 = 6.6 m/sec ...
... the retina is closed to the eye lens and this causes long sight 2- It passes through the lens without refraction 4-c1- The distance covered by the body = 44 x 1.5 = 66 m 2- The displacement = the diameter of the circle = 14 m 3- The average speed = total distance = 66 = 6.6 m/sec ...
AWG recommendation on Cosmic Vision
... detecting planets with ever smaller masses, and towards the development of a broader suite of techniques to characterize their properties. There is no doubt that this trend will continue into the next two decades, as substantial technological challenges are progressively overcome. After Corot will h ...
... detecting planets with ever smaller masses, and towards the development of a broader suite of techniques to characterize their properties. There is no doubt that this trend will continue into the next two decades, as substantial technological challenges are progressively overcome. After Corot will h ...
~Crowfoot
... a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s sky. c) is the light from an embedded blue star. 3)2 The “Pillars of Creation” on this image Eagle Nebula a) show the destruction of a nebula by a supernova explosion b) are the jets from a young ...
... a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s sky. c) is the light from an embedded blue star. 3)2 The “Pillars of Creation” on this image Eagle Nebula a) show the destruction of a nebula by a supernova explosion b) are the jets from a young ...
a plane-symmetric magnetized inhomogeneous cosmological model
... big bang singularity, representing a cylindrically symmetric, inhomogeneous cosmological model filled with perfect fluid which is smooth and regular everywhere satisfying energy and causality conditions. Later, Ruis and Senovilla [11] have separated out a fairly large class of singularity free model ...
... big bang singularity, representing a cylindrically symmetric, inhomogeneous cosmological model filled with perfect fluid which is smooth and regular everywhere satisfying energy and causality conditions. Later, Ruis and Senovilla [11] have separated out a fairly large class of singularity free model ...
The Universe - HMXEarthScience
... 22. Compared to light from from a stationary source at the same point, light from an object moving toward you is A) B) C) D) ...
... 22. Compared to light from from a stationary source at the same point, light from an object moving toward you is A) B) C) D) ...
ies la arboleda – centro tic - plurilingüe
... (A)- The universe was contained in a single point in space. All of the matter and energy of space was then contained at this point. What existed prior to this event is completely unknown. About 13.73 billion years (13.730.000.000 years) ago a tremendous explosion started the expansion of the univers ...
... (A)- The universe was contained in a single point in space. All of the matter and energy of space was then contained at this point. What existed prior to this event is completely unknown. About 13.73 billion years (13.730.000.000 years) ago a tremendous explosion started the expansion of the univers ...
Document
... *Each galaxy merger leads to a bright quasar phase during which the black hole grows to a mass M ï / v5c and shines at the Eddington limit. The duration of this bright phase is proportional to the (smaller than unity) mass ratio in the merger. ...
... *Each galaxy merger leads to a bright quasar phase during which the black hole grows to a mass M ï / v5c and shines at the Eddington limit. The duration of this bright phase is proportional to the (smaller than unity) mass ratio in the merger. ...
Think about the universe
... of gods, animals or familiar objects. The most wellknown constellations are the 12 groups we know as the signs of the zodiac. These constellations follow the ecliptic and their names include Taurus (the bull), Leo (the lion) and Sagittarius (the archer). You probably know the rest. If not, a discuss ...
... of gods, animals or familiar objects. The most wellknown constellations are the 12 groups we know as the signs of the zodiac. These constellations follow the ecliptic and their names include Taurus (the bull), Leo (the lion) and Sagittarius (the archer). You probably know the rest. If not, a discuss ...
SCIN 293-PL-New Course
... Lesson 1: Properties of stars Topic 1: Describing stars in the sky Topic 2: Formation of stars in molecular clouds Topic 3: The lives of stars of all masses Topic 4: Star death and remnants Topic Mastery: Describe the steps in the life of a 1 solar mass stars and contrast them with the steps in the ...
... Lesson 1: Properties of stars Topic 1: Describing stars in the sky Topic 2: Formation of stars in molecular clouds Topic 3: The lives of stars of all masses Topic 4: Star death and remnants Topic Mastery: Describe the steps in the life of a 1 solar mass stars and contrast them with the steps in the ...
Astro 10B Study Questions for Each Chapter
... When an atom has lost one or more electrons it is: What is the role of experimentation in science? What is the Doppler effect? What do each of these terms from the gas law mean: P. V, n, T Does the Doppler effect affect sound waves? Which term from the gas law was most difficult to define (ie. least ...
... When an atom has lost one or more electrons it is: What is the role of experimentation in science? What is the Doppler effect? What do each of these terms from the gas law mean: P. V, n, T Does the Doppler effect affect sound waves? Which term from the gas law was most difficult to define (ie. least ...
How Big is the Universe
... Objective – After reading an article, I can identify characteristics of the universe. ...
... Objective – After reading an article, I can identify characteristics of the universe. ...
universe new
... What are comets? The planets travel around the Sun in near-circular orbits. Comets are celestial objects that also travel around the Sun, but in very elliptical orbits. The head of a comet is a lump of ice and dust, a few kilometres in ...
... What are comets? The planets travel around the Sun in near-circular orbits. Comets are celestial objects that also travel around the Sun, but in very elliptical orbits. The head of a comet is a lump of ice and dust, a few kilometres in ...
Word version of Episode 701
... This activity is the kind of activity that students usually find interesting and often leads to some spirited discussions. It will also give the teacher an idea of how well-informed the students are, and so help in planning future lessons and activities. Cosmology is a popular topic and some student ...
... This activity is the kind of activity that students usually find interesting and often leads to some spirited discussions. It will also give the teacher an idea of how well-informed the students are, and so help in planning future lessons and activities. Cosmology is a popular topic and some student ...
Observing stars - Teaching Advanced Physics
... This activity is the kind of activity that students usually find interesting and often leads to some spirited discussions. It will also give the teacher an idea of how well-informed the students are, and so help in planning future lessons and activities. Cosmology is a popular topic and some student ...
... This activity is the kind of activity that students usually find interesting and often leads to some spirited discussions. It will also give the teacher an idea of how well-informed the students are, and so help in planning future lessons and activities. Cosmology is a popular topic and some student ...
Universe Discovery Guides: November — What is the Fate of the
... shocking conclusion. Using the Hubble Space Telescope and groundbased telescopes, researchers found that not only is the universe expanding, it is also accelerating! It appears that there is some unknown force “pushing” the universe apart at a faster and faster rate. This force has been named “Dark ...
... shocking conclusion. Using the Hubble Space Telescope and groundbased telescopes, researchers found that not only is the universe expanding, it is also accelerating! It appears that there is some unknown force “pushing” the universe apart at a faster and faster rate. This force has been named “Dark ...
A105 Stars and Galaxies
... We don’t know! Detecting Dark Matter is one of the most active areas of high energy physics, and a ...
... We don’t know! Detecting Dark Matter is one of the most active areas of high energy physics, and a ...
Non-standard cosmology
A non-standard cosmology is any physical cosmological model of the universe that has been, or still is, proposed as an alternative to the Big Bang model of standard physical cosmology. In the history of cosmology, various scientists and researchers have disputed parts or all of the Big Bang due to a rejection or addition of fundamental assumptions needed to develop a theoretical model of the universe. From the 1940s to the 1960s, the astrophysical community was equally divided between supporters of the Big Bang theory and supporters of a rival steady state universe. It was not until advances in observational cosmology in the late 1960s that the Big Bang would eventually become the dominant theory, and today there are few active researchers who dispute it.The term non-standard is applied to any cosmological theory that does not conform to the scientific consensus, but is not used in describing alternative models where no consensus has been reached, and is also used to describe theories that accept a ""big bang"" occurred but differ as to the detailed physics of the origin and evolution of the universe. Because the term depends on the prevailing consensus, the meaning of the term changes over time. For example, hot dark matter would not have been considered non-standard in 1990, but would be in 2010. Conversely, a non-zero cosmological constant resulting in an accelerating universe would have been considered non-standard in 1990, but is part of the standard cosmology in 2010.