A Zoo of Galaxies - Cambridge University Press
... To say our understanding of the “zoo” of galaxies that are found in our Universe has changed a lot over the last century or two is a bit of an understatement. In 1845 the state of the art picture of an external galaxy, was an image of M51, or the Whirlpool galaxy drawn by William Parsons, Third Earl ...
... To say our understanding of the “zoo” of galaxies that are found in our Universe has changed a lot over the last century or two is a bit of an understatement. In 1845 the state of the art picture of an external galaxy, was an image of M51, or the Whirlpool galaxy drawn by William Parsons, Third Earl ...
Archaeology of the Milky Way - Max-Planck
... close to a spiral arm, it is attracted by the stronger gravity and accelerated – like a surfer on a big wave. If that star rides in front of this spiral wave, the star moves farther away from the center of the Milky Way onto a larger orbit. If, after a few hundred million years, this star happens to ...
... close to a spiral arm, it is attracted by the stronger gravity and accelerated – like a surfer on a big wave. If that star rides in front of this spiral wave, the star moves farther away from the center of the Milky Way onto a larger orbit. If, after a few hundred million years, this star happens to ...
Astro 10 Practice Test 3
... b. The helium in their cores has all been used up, which means they’ve started buring hydrogen for the first time. c. They have been ejected from the cluster by gravitational encounters with other stars. d. They’ve run out of hydrogen to burn in their cores, and have evolved into red giants. ...
... b. The helium in their cores has all been used up, which means they’ve started buring hydrogen for the first time. c. They have been ejected from the cluster by gravitational encounters with other stars. d. They’ve run out of hydrogen to burn in their cores, and have evolved into red giants. ...
Dark Matter: Observational Constraints Properties of Dark Matter:
... • Hot, X-ray emitting gas is observed to be insufficient • Warm, 104 K ionized gas emits by bremstrahlung. If in hydrostatic equilibrium, central regions would be dense enough to be easily observed. • Molecular gas must be H2; large quantities would be ionized and observed near the galactic plane; i ...
... • Hot, X-ray emitting gas is observed to be insufficient • Warm, 104 K ionized gas emits by bremstrahlung. If in hydrostatic equilibrium, central regions would be dense enough to be easily observed. • Molecular gas must be H2; large quantities would be ionized and observed near the galactic plane; i ...
Building` a Galaxy SED
... cosmology, large variation in physics (fluid dynamics, quantum physics) Practical problem: galaxies are biased tracers of underlying mass distribution. In order to use galaxies to measure underlying mass distribution, we must understand galaxies. ...
... cosmology, large variation in physics (fluid dynamics, quantum physics) Practical problem: galaxies are biased tracers of underlying mass distribution. In order to use galaxies to measure underlying mass distribution, we must understand galaxies. ...
Astronomy Facts
... The sun is 1.4 million km across (110 times the earth), and over 150 million km away (500 light seconds) The largest stars (eg: Betelgeuse, Antares) are over 400 million km across (more than 300 times the diameter of the Sun) The brightest stars are over 10,000 times brighter than the sun. The dista ...
... The sun is 1.4 million km across (110 times the earth), and over 150 million km away (500 light seconds) The largest stars (eg: Betelgeuse, Antares) are over 400 million km across (more than 300 times the diameter of the Sun) The brightest stars are over 10,000 times brighter than the sun. The dista ...
7_Big_bang
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
ppt document - FacStaff Home Page for CBU
... look around, we do indeed see that galaxies appear in clusters, and appear to orbit one another by their mutual gravity. The Milky Way is one of about 40 or so galaxies that form the Local Group. Andromeda (another spiralB galaxy about 2 million light years away) and the Milky Way are the biggest me ...
... look around, we do indeed see that galaxies appear in clusters, and appear to orbit one another by their mutual gravity. The Milky Way is one of about 40 or so galaxies that form the Local Group. Andromeda (another spiralB galaxy about 2 million light years away) and the Milky Way are the biggest me ...
Galaxy Hunters Article, Cosmology Information, First Star Facts
... brighter than the sun. If so, some of the gamma-ray bursts that have already been detected may actually have come from the first stars. "It would be the most wonderful thing," said Abel, "if we were so lucky that the first stars that formed were also the brightest." Abel's presentation in Cozumel wa ...
... brighter than the sun. If so, some of the gamma-ray bursts that have already been detected may actually have come from the first stars. "It would be the most wonderful thing," said Abel, "if we were so lucky that the first stars that formed were also the brightest." Abel's presentation in Cozumel wa ...
SUMSS - 京都大学
... • Techniques: Selection of candidates by colour or other criteria, spectroscopy with large optical/IR telescopes. • Elliptical galaxies: Ellipticals at z~1 (lookback time 8-9 Gyr) still look ‘old’, main epoch of formation probably earlier than z=3. • Cosmic evolution: Powerful radio galaxies much mo ...
... • Techniques: Selection of candidates by colour or other criteria, spectroscopy with large optical/IR telescopes. • Elliptical galaxies: Ellipticals at z~1 (lookback time 8-9 Gyr) still look ‘old’, main epoch of formation probably earlier than z=3. • Cosmic evolution: Powerful radio galaxies much mo ...
Chapter 1: Introduction to Galaxies File - QMplus
... Spiral galaxies have much gas within their discs, plus some embedded dust, which amounts to 1-20% of their visible mass (the rest of the visible mass is stars). This gas shows active star formation. The discs contain stars having a range of ages as a result of this continuing star formation. Spiral ...
... Spiral galaxies have much gas within their discs, plus some embedded dust, which amounts to 1-20% of their visible mass (the rest of the visible mass is stars). This gas shows active star formation. The discs contain stars having a range of ages as a result of this continuing star formation. Spiral ...
Name
... If you are interested you can look at some of the fantastic views from the Hubble telescope by going to an internet search engine (like Google) and typing in: Hubble images. 49. The electromagnetic spectrum of energy consists of: radio waves, ___________________, ____________________, ______________ ...
... If you are interested you can look at some of the fantastic views from the Hubble telescope by going to an internet search engine (like Google) and typing in: Hubble images. 49. The electromagnetic spectrum of energy consists of: radio waves, ___________________, ____________________, ______________ ...
1 UNIT 3 EARTH HISTORY - POSSIBLE TEST QUESTIONS OUR
... 19. Where is the relative location of the older and younger stars in typical spiral galaxies? 20. Name and give the “type” for the largest known galaxy and estimated number of stars. 21. Are collisions of galaxies rare? How do we know? Grouping of Galaxies 22. Define a galaxy cluster. 23. What is an ...
... 19. Where is the relative location of the older and younger stars in typical spiral galaxies? 20. Name and give the “type” for the largest known galaxy and estimated number of stars. 21. Are collisions of galaxies rare? How do we know? Grouping of Galaxies 22. Define a galaxy cluster. 23. What is an ...
Denton ISD
... A galaxy that is moving toward Earth will show — A a red shift in its spectrum B an increase in light-years ...
... A galaxy that is moving toward Earth will show — A a red shift in its spectrum B an increase in light-years ...
Universal redshift, the Hubble constant The cosmic background
... destiny of some of the photons was to be measured by us One can see it easier – since λM ∼ 1/T , TD/TC = LC /LD CMB is the picture of the Universe when it was 2000 (^3) times smaller. ...
... destiny of some of the photons was to be measured by us One can see it easier – since λM ∼ 1/T , TD/TC = LC /LD CMB is the picture of the Universe when it was 2000 (^3) times smaller. ...
Into the sub-mm
... showed spectacular images from a large collaboration working on the Eagle Nebula (M16). The emission from dust seen in all the SCUBA images matches closely the dust obscuration in the famous HST picture, apart from bright points of emission at the tips of the fingers. Although it is too early to say ...
... showed spectacular images from a large collaboration working on the Eagle Nebula (M16). The emission from dust seen in all the SCUBA images matches closely the dust obscuration in the famous HST picture, apart from bright points of emission at the tips of the fingers. Although it is too early to say ...
Origin of the Universe
... through space are called electromagnetic energy. energy in specific portions-wavelengths-within the electromagnetic spectrum. Because the human eye observes different wavelengths of visible light as different colors, people can distinguish specific portions of the electiomagrretic spectrum. When sci ...
... through space are called electromagnetic energy. energy in specific portions-wavelengths-within the electromagnetic spectrum. Because the human eye observes different wavelengths of visible light as different colors, people can distinguish specific portions of the electiomagrretic spectrum. When sci ...
BAS - Monthly Sky Guide
... the Centaur and mythology suggests a fight to the death between the two is underway in the sky. Lupus is also not far from Libra and the central bulge region of our Milky Way Galaxy – this means it is a good place to find globular clusters attracted to the gravitational mass of the centre of our gal ...
... the Centaur and mythology suggests a fight to the death between the two is underway in the sky. Lupus is also not far from Libra and the central bulge region of our Milky Way Galaxy – this means it is a good place to find globular clusters attracted to the gravitational mass of the centre of our gal ...
Dark Matter -24-------------------------------~-----------R-E-S-O-N-A-N-C
... has brought up a generation in this belief. Members of this tribe, known as astronomers, now take it for granted that over half of our Galaxy and most of the universe is composed of what they call dark matter- matter that is invisible but must exist (astronomers say) because of the influence it has ...
... has brought up a generation in this belief. Members of this tribe, known as astronomers, now take it for granted that over half of our Galaxy and most of the universe is composed of what they call dark matter- matter that is invisible but must exist (astronomers say) because of the influence it has ...
ASTR100 Class 01 - University of Maryland Department of
... The Earth orbits the Sun (revolves) once every year. ...
... The Earth orbits the Sun (revolves) once every year. ...
intergalactic move
... millions and millions of stars. Just like people, stars rarely live alone. They are usually in the company of other stars and objects. Nearly all stars belong to gigantic groups known as galaxies. And there are billions of galaxies in the Universe. That’s an unimaginable amount of stars! Everywhere ...
... millions and millions of stars. Just like people, stars rarely live alone. They are usually in the company of other stars and objects. Nearly all stars belong to gigantic groups known as galaxies. And there are billions of galaxies in the Universe. That’s an unimaginable amount of stars! Everywhere ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
OCR Physics A Refer to the Physics A datasheet for data, formulae
... You should work to 6 d.p. in this calculation. ...
... You should work to 6 d.p. in this calculation. ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.