Deep Space Mystery Note Form 3
... Stars up to eight times the mass of our sun usually evolve into white dwarfs. A star that is condensed to this size has a very strong gravitational pull. With that gravity, if the second star is close enough, it can pull material from there. White dwarf gets a lot of mass ...
... Stars up to eight times the mass of our sun usually evolve into white dwarfs. A star that is condensed to this size has a very strong gravitational pull. With that gravity, if the second star is close enough, it can pull material from there. White dwarf gets a lot of mass ...
Dynamics of elliptical galaxies
... Fundamental plane Recall that for an elliptical galaxy we can define an effective radius Re - radius of a circle which contains half of the total light in the galaxy. Measure three apparently independent properties; • The effective radius Re • The central velocity dispersion s • The surface brightn ...
... Fundamental plane Recall that for an elliptical galaxy we can define an effective radius Re - radius of a circle which contains half of the total light in the galaxy. Measure three apparently independent properties; • The effective radius Re • The central velocity dispersion s • The surface brightn ...
Document
... • Astronomers have concluded that the Universe is expanding since all the galaxies, with the exception of other galaxies in the Local Group Galaxy Cluster, show a red shift. Within the Local Group, some show a red shift and others a blue shift, since some are moving toward the Milky Way and others a ...
... • Astronomers have concluded that the Universe is expanding since all the galaxies, with the exception of other galaxies in the Local Group Galaxy Cluster, show a red shift. Within the Local Group, some show a red shift and others a blue shift, since some are moving toward the Milky Way and others a ...
PARAMOUNT SCHOOL OF EXCELLENCE TIME AND SPACE
... i. …how far away would the Andromeda galaxy be? (6,600 feet, or 1.25 miles) j. …how far would it be to the farthest known galaxy? (39 million feet, or 7,386 ...
... i. …how far away would the Andromeda galaxy be? (6,600 feet, or 1.25 miles) j. …how far would it be to the farthest known galaxy? (39 million feet, or 7,386 ...
Beyond the Solar System Homework for Geology 8
... 57. The brightness of a star when viewed from Earth is called its ____________ magnitude. 58. The true brightness of a star, which takes into account the distance from the Earth by using a standard distance, is called its ____________ magnitude. 59. A 1st (first) magnitude star is approximately ____ ...
... 57. The brightness of a star when viewed from Earth is called its ____________ magnitude. 58. The true brightness of a star, which takes into account the distance from the Earth by using a standard distance, is called its ____________ magnitude. 59. A 1st (first) magnitude star is approximately ____ ...
binary star
... Death of Medium-Mass Stars • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called plan ...
... Death of Medium-Mass Stars • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called plan ...
Lecture 12
... • Types of binary stars – Visual – Spectroscopic – Eclipsing • Only way to measure stellar masses: – Only ~150 stars ...
... • Types of binary stars – Visual – Spectroscopic – Eclipsing • Only way to measure stellar masses: – Only ~150 stars ...
Power Point Link
... elements) are up to two billion years older than the Sun • Imagine the same timeline…intelligent animals could have been around for a billion years rather than ...
... elements) are up to two billion years older than the Sun • Imagine the same timeline…intelligent animals could have been around for a billion years rather than ...
GO 3_3 Interpreting Space
... produce a spectrum of colors. Joseph von Fraunhofer used a spectroscope to observe the spectrum produced by the Sun. He noticed dark lines, called spectral lines. At the time he was unaware of what these lines were. The significance of the spectral lines was discovered about 50 years later when ...
... produce a spectrum of colors. Joseph von Fraunhofer used a spectroscope to observe the spectrum produced by the Sun. He noticed dark lines, called spectral lines. At the time he was unaware of what these lines were. The significance of the spectral lines was discovered about 50 years later when ...
HW #02 Solutions
... The brightness of a star depends on two factors; its luminosity and its distance. This is summarized in L the relation B . Notice that this brightness relation is an example of an inverse square law. 4 d 2 Since the stars are identical, they have the same luminosities. Thus, since the stars hav ...
... The brightness of a star depends on two factors; its luminosity and its distance. This is summarized in L the relation B . Notice that this brightness relation is an example of an inverse square law. 4 d 2 Since the stars are identical, they have the same luminosities. Thus, since the stars hav ...
Astronomy HOMEWORK Chapter 12 - 9th Edition 1. Consider a star
... other stages) are the high-mass ones. So “How:” the turnoff point is determined (L and T ). These values are correlated with a lifetime, and that’s the age of the cluster. 16. Why do astronomers believe that most globular clusters are made of old stars? Answer: See the H-R diagram for M55, Fig 12-30 ...
... other stages) are the high-mass ones. So “How:” the turnoff point is determined (L and T ). These values are correlated with a lifetime, and that’s the age of the cluster. 16. Why do astronomers believe that most globular clusters are made of old stars? Answer: See the H-R diagram for M55, Fig 12-30 ...
Lecture 31
... sources) and found its distance from its redshift to be 2 billion light years--not a star, and L = 1040 watts--1,000 L (MW)!! .8 to 14(?) Billion years--distance range. L = 1038-1042 watts. Energy comes from a region solar system-sized. Radio Jets. A thermal (synchotron) and non-thermal (black-body) ...
... sources) and found its distance from its redshift to be 2 billion light years--not a star, and L = 1040 watts--1,000 L (MW)!! .8 to 14(?) Billion years--distance range. L = 1038-1042 watts. Energy comes from a region solar system-sized. Radio Jets. A thermal (synchotron) and non-thermal (black-body) ...
Document
... for the Big Bang is the observed 3 K cosmic background radiation, which is believed to be the remnant of the primordial reball through which the universe made its appearance. In about a million years after the Big Bang, the temperature of this reball decreased from unbelievably high values of more ...
... for the Big Bang is the observed 3 K cosmic background radiation, which is believed to be the remnant of the primordial reball through which the universe made its appearance. In about a million years after the Big Bang, the temperature of this reball decreased from unbelievably high values of more ...
First Exam - University of Iowa Astrophysics
... 26. You look up in the night sky and see the planet Jupiter, the planet Mars, and the Moon very close together. You know that they are located in or close to one of the following. Which is it? (a) the ecliptic ∗ (b) the celestial equator (c) the zenith (d) the north celestial pole (e) the constellat ...
... 26. You look up in the night sky and see the planet Jupiter, the planet Mars, and the Moon very close together. You know that they are located in or close to one of the following. Which is it? (a) the ecliptic ∗ (b) the celestial equator (c) the zenith (d) the north celestial pole (e) the constellat ...
Life Cycle of Stars
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Things to know: This meant as a guide to what you should know. I
... What is Hubble’s law and why does it mean the universe is expanding? How do you use Hubble’s law to measure the age of the universe? What are standard candles? What are the rungs of the cosmic distance ladder (don’t forget Cepheids and White Dwarf Supernova!!!)? What is dark matter and how do we kno ...
... What is Hubble’s law and why does it mean the universe is expanding? How do you use Hubble’s law to measure the age of the universe? What are standard candles? What are the rungs of the cosmic distance ladder (don’t forget Cepheids and White Dwarf Supernova!!!)? What is dark matter and how do we kno ...
HW8 - UCSB Physics
... (a) For the RR Lyrae star, we are given L = 100L and b = 1.47 × 10−18 b . Let d be the Sun-Earth distance, i.e. d = 1 AU and use b = L/(4πd2 ), s s ...
... (a) For the RR Lyrae star, we are given L = 100L and b = 1.47 × 10−18 b . Let d be the Sun-Earth distance, i.e. d = 1 AU and use b = L/(4πd2 ), s s ...
Calculating_Main_Sequence_Lifetimes_StudentGuide
... In Fig. 1, there no stars with a mass greater than 7-8 solar masses. The stars with these masses are able to begin new fusion reactions involving the burning of Helium, Carbon, Oxygen, Magnesium and Neon. A star with a mass greater than 10 solar masses can develop thermonuclear reactions until it c ...
... In Fig. 1, there no stars with a mass greater than 7-8 solar masses. The stars with these masses are able to begin new fusion reactions involving the burning of Helium, Carbon, Oxygen, Magnesium and Neon. A star with a mass greater than 10 solar masses can develop thermonuclear reactions until it c ...
and Concept Self-test (1,2,3,5,6,7,8,9)
... 1. A star will evolve “off the main sequence” when it uses up C.) Most of the hydrogen in the core. 2. On the main sequence, massive stars b.) burn their hydrogen fuel more rapidly than the Sun. 3. Compared to other stars on the H-R diagram, red-giant stars are so named because they are a.) cooler. ...
... 1. A star will evolve “off the main sequence” when it uses up C.) Most of the hydrogen in the core. 2. On the main sequence, massive stars b.) burn their hydrogen fuel more rapidly than the Sun. 3. Compared to other stars on the H-R diagram, red-giant stars are so named because they are a.) cooler. ...
Infinity Express
... The information and activities presented in the Infinity Express Teacher’s Guide have been adapted for use and distribution by OMSI from the following: Smithsonian National Air and Space Museum GLOSSARY ...
... The information and activities presented in the Infinity Express Teacher’s Guide have been adapted for use and distribution by OMSI from the following: Smithsonian National Air and Space Museum GLOSSARY ...
Physica 133-11f: Sample Final Exam Here are sample questions for
... B) Viking proved that there is no life anywhere on the surface of Mars. C) The Viking experiments did not find any strong evidence for life on Mars at present, but provided some moderately strong evidence that Mars had life in the past. D) Viking found strong but not conclusive evidence that there i ...
... B) Viking proved that there is no life anywhere on the surface of Mars. C) The Viking experiments did not find any strong evidence for life on Mars at present, but provided some moderately strong evidence that Mars had life in the past. D) Viking found strong but not conclusive evidence that there i ...
Beyond the Solar System Homework for Geology 8
... measure stellar distances. 60. What type of star is our Sun? 61. The brightness of a star when viewed from Earth is called its ____________ magnitude. 62. The true brightness of a star, which takes into account the distance from the Earth by using a standard distance, is called its ____________ magn ...
... measure stellar distances. 60. What type of star is our Sun? 61. The brightness of a star when viewed from Earth is called its ____________ magnitude. 62. The true brightness of a star, which takes into account the distance from the Earth by using a standard distance, is called its ____________ magn ...
solution
... 18.15 What happens inside a protostar to slow and eventually halt its gravitational contraction? The gravitational energy causes Kelvin-Helmholtz contraction, which increases the pressure, density and temperature of the central region of a protostar. Once the temperature exceeds a few million K, H b ...
... 18.15 What happens inside a protostar to slow and eventually halt its gravitational contraction? The gravitational energy causes Kelvin-Helmholtz contraction, which increases the pressure, density and temperature of the central region of a protostar. Once the temperature exceeds a few million K, H b ...
neutron star - Livonia Public Schools
... All stars, regardless of their size, eventually run out of fuel and collapse due to gravity. Death of Low-Mass Stars • Stars less than one-half the mass of the sun never evolve to the red giant stage but remain in the stable main-sequence stage until they consume all their hydrogen fuel and coll ...
... All stars, regardless of their size, eventually run out of fuel and collapse due to gravity. Death of Low-Mass Stars • Stars less than one-half the mass of the sun never evolve to the red giant stage but remain in the stable main-sequence stage until they consume all their hydrogen fuel and coll ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.