Astrophysics Presentation
... It is about 50,000 pc (50 kpc) in diameter (160,000 ly) but only 1000 pc thick (1 kpc) - with a 2-3 kpc bulge in the centre ...
... It is about 50,000 pc (50 kpc) in diameter (160,000 ly) but only 1000 pc thick (1 kpc) - with a 2-3 kpc bulge in the centre ...
Star Groups and Big Bang Power Point
... Analysis of the ripples in the cosmic background radiation shows that the matter that humans, the planets, the stars and the matter between the stars makes up only 4% of the universe. About 23% of the universe is made up of a type of matter that does not give off light but that has gravity. This ...
... Analysis of the ripples in the cosmic background radiation shows that the matter that humans, the planets, the stars and the matter between the stars makes up only 4% of the universe. About 23% of the universe is made up of a type of matter that does not give off light but that has gravity. This ...
All these different energies are classified according to wavelength
... blue or red? If a galaxy is moving away from earth, is it blue or red? ...
... blue or red? If a galaxy is moving away from earth, is it blue or red? ...
universe
... • Towards one another (gravity) • Away from one another (momentum from the Big Bang) While objects within the Universe have been expanding, for the most part, in a uniform manner, the motion apart has not all been at the same speed; instead it follows a pattern where galaxies that are further apart ...
... • Towards one another (gravity) • Away from one another (momentum from the Big Bang) While objects within the Universe have been expanding, for the most part, in a uniform manner, the motion apart has not all been at the same speed; instead it follows a pattern where galaxies that are further apart ...
The Components and Origin of the Universe
... think of raison bread dough…….you are sitting on a single raison and so it appears you are sitting still The ...
... think of raison bread dough…….you are sitting on a single raison and so it appears you are sitting still The ...
Section 19.3
... distance of galaxies. Much to his surprise, he discovered that the farther away a galaxy was, the faster it was moving away from Earth. This concept came to be known as the expanding universe. ...
... distance of galaxies. Much to his surprise, he discovered that the farther away a galaxy was, the faster it was moving away from Earth. This concept came to be known as the expanding universe. ...
Which of the following is the best description of an Sc galaxy? A) a
... C) light from background galaxies is blocked by the dark matter D) the orbits of distant globular clusters are distorted by the dark matter How was Hubble able to determine the distances of nearby galaxies? A) by using radar B) by measuring trigonometric parallaxes C) by measuring the typical angula ...
... C) light from background galaxies is blocked by the dark matter D) the orbits of distant globular clusters are distorted by the dark matter How was Hubble able to determine the distances of nearby galaxies? A) by using radar B) by measuring trigonometric parallaxes C) by measuring the typical angula ...
d - Haus der Astronomie
... LIGHT YEAR is NOT a unit of measurament of time. It is correct to say that the image of celestial body, which is far a certain number of light years, shows us that celestial body as it was the same number of years ago, and not at this time. ...
... LIGHT YEAR is NOT a unit of measurament of time. It is correct to say that the image of celestial body, which is far a certain number of light years, shows us that celestial body as it was the same number of years ago, and not at this time. ...
4B-Astronomer-Notes
... star cluster, but an entire other galaxy and he called it the Andromeda Galaxy. • In order to classify the galaxies, he created a system called the Hubble Tuning Fork Diagram, which put the galaxies as either an Elliptical, Spiral, or Barred Spiral. o Most astonishing discovery was his study of the ...
... star cluster, but an entire other galaxy and he called it the Andromeda Galaxy. • In order to classify the galaxies, he created a system called the Hubble Tuning Fork Diagram, which put the galaxies as either an Elliptical, Spiral, or Barred Spiral. o Most astonishing discovery was his study of the ...
AV_Paper1_TheAgeOfTheUniverse
... a universe that had almost zero size at a finite time. Early measurements of the expansion rate of the universe, known as the Hubble parameter H0, were around 550km/s/MPC. These units of measurement read: kilometers/second/megaparsec, meaning for every megaparsec (3 million light years) you go out t ...
... a universe that had almost zero size at a finite time. Early measurements of the expansion rate of the universe, known as the Hubble parameter H0, were around 550km/s/MPC. These units of measurement read: kilometers/second/megaparsec, meaning for every megaparsec (3 million light years) you go out t ...
ONLINE practice exam
... 2. What is the best way to stop being pulled into a black hole? a.) Fire rockets continuously. b.) Invent anti-gravity. c.) Go into orbit, rely on centrifugal force. d.) Reduce the mass of the ship by throwing almost everything overboard. e.) Fall into the black hole and get frozen at its horizon. 3 ...
... 2. What is the best way to stop being pulled into a black hole? a.) Fire rockets continuously. b.) Invent anti-gravity. c.) Go into orbit, rely on centrifugal force. d.) Reduce the mass of the ship by throwing almost everything overboard. e.) Fall into the black hole and get frozen at its horizon. 3 ...
Cosmology
... Describe and explain the term comet. Give the structure of a comet and the nature of its orbit. Describe and explain asteroids and meteorites and that these usually vaporize on entering the Earth’s atmosphere. Binary stars- most stars are part of a binary system and rotate around their common centre ...
... Describe and explain the term comet. Give the structure of a comet and the nature of its orbit. Describe and explain asteroids and meteorites and that these usually vaporize on entering the Earth’s atmosphere. Binary stars- most stars are part of a binary system and rotate around their common centre ...
Post-class version
... Clusters of galaxies are the largest gravitationally bound structures. They are grouped into superclusters. Superclusters line up in filaments, which are separated by empty spaces or voids. ...
... Clusters of galaxies are the largest gravitationally bound structures. They are grouped into superclusters. Superclusters line up in filaments, which are separated by empty spaces or voids. ...
How the universe began
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
Hypothesis vs. Theory ~The Big Bang
... Our Place in the Universe Our study of Astronomy requires us to look UP and not DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence explorin ...
... Our Place in the Universe Our study of Astronomy requires us to look UP and not DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence explorin ...
Slide 1
... Which implies the existence of dark matter (not seen). About half is ordinary (baryonic), but other half is exotic. WIMPS, etc.? ...
... Which implies the existence of dark matter (not seen). About half is ordinary (baryonic), but other half is exotic. WIMPS, etc.? ...
AS 60 - Astronomy of the Americas
... 2. How can you tell if a galaxy is moving toward us, or away from us? a. As you watch it over the course of a year, an approaching galaxy will appear to grow larger in angular size on the sky b. Spectral lines of elements will be observed in the galaxy’s spectrum at greater wavelengths than those fo ...
... 2. How can you tell if a galaxy is moving toward us, or away from us? a. As you watch it over the course of a year, an approaching galaxy will appear to grow larger in angular size on the sky b. Spectral lines of elements will be observed in the galaxy’s spectrum at greater wavelengths than those fo ...
Sample Exam 3
... 24) The Hubble Space Telescope has been used to observe supernova type Ia in distant galaxies, to measure the distance using the brightness law—independent of the velocity redshift distance. The last supernova Ia in the Milky Way happened about 400 years ago, but many type Ia’s have been observed by ...
... 24) The Hubble Space Telescope has been used to observe supernova type Ia in distant galaxies, to measure the distance using the brightness law—independent of the velocity redshift distance. The last supernova Ia in the Milky Way happened about 400 years ago, but many type Ia’s have been observed by ...
Paradigm Shifts in Cosmology
... of island universes other than the Milky Way, an expanding dynamic nature of the universe was found. Here, Vesto Slipher should be mentioned. From the 1910 s to the 1920 s he made spectroscopic observations of the spiral nebulae (galaxies) and found that almost all the galaxies showed the shift of s ...
... of island universes other than the Milky Way, an expanding dynamic nature of the universe was found. Here, Vesto Slipher should be mentioned. From the 1910 s to the 1920 s he made spectroscopic observations of the spiral nebulae (galaxies) and found that almost all the galaxies showed the shift of s ...
Higher Hubble`s Law and the Big Bang Answers
... It is assumed that there was a beginning as time started with the Big Bang. When the universe cooled sufficiently to form atoms, photons of radiation were able to travel distances which propagated the entire universe. Red shift which shows stars and galaxies are moving away from us in the continual ...
... It is assumed that there was a beginning as time started with the Big Bang. When the universe cooled sufficiently to form atoms, photons of radiation were able to travel distances which propagated the entire universe. Red shift which shows stars and galaxies are moving away from us in the continual ...
Watching Galaxies Form Near the Beginning of Time
... Distance and time are always mixed in astronomical observations. ...
... Distance and time are always mixed in astronomical observations. ...
HW4 due - Yale Astronomy
... Please give answers in both light-‐minutes and astronomical units. Assume that the planets have circular orbits. [HINT: Draw a diagram.] [HINT: A light-‐minute is a distance: how far light goes in 1 ...
... Please give answers in both light-‐minutes and astronomical units. Assume that the planets have circular orbits. [HINT: Draw a diagram.] [HINT: A light-‐minute is a distance: how far light goes in 1 ...
Study Guide Ch10,11 and 12
... nucleus of our Galaxy, and what is the probable explanation? 7. Describe the factors involved in galactic formation, including the role of collisions between galaxies. 8. Be able to identify a galaxy by its shape, according to the Hubble sequence. 9. Compare and contrast elliptical galaxies and spir ...
... nucleus of our Galaxy, and what is the probable explanation? 7. Describe the factors involved in galactic formation, including the role of collisions between galaxies. 8. Be able to identify a galaxy by its shape, according to the Hubble sequence. 9. Compare and contrast elliptical galaxies and spir ...
Hubble Telescope Pictures
... As you view these photographs try to visualize the distance of these objects from earth, i.e. one(1) light year = 5,865,696,000,000 or 6 trillion miles. ...
... As you view these photographs try to visualize the distance of these objects from earth, i.e. one(1) light year = 5,865,696,000,000 or 6 trillion miles. ...