Lecture 2
... a galaxy is 200000000000000000000 miles away So awkward we MUST use scientific notation an atomic nucleus is 10-15m a galaxy is 2x1019 miles away ...
... a galaxy is 200000000000000000000 miles away So awkward we MUST use scientific notation an atomic nucleus is 10-15m a galaxy is 2x1019 miles away ...
Physical Chemistry
... » BUT model not consistent with classical electrodynamics: Accelerating charge emits radiation! (centripetal acceleration = v2/r) And since light has energy, Emust be getting more negative with time » R must be getting smaller with time! » Electronspiralsintonucleusin~1010s! » Also, as rdecreases, ...
... » BUT model not consistent with classical electrodynamics: Accelerating charge emits radiation! (centripetal acceleration = v2/r) And since light has energy, Emust be getting more negative with time » R must be getting smaller with time! » Electronspiralsintonucleusin~1010s! » Also, as rdecreases, ...
Chapter 17 Science Class 8
... 4. The Moon and Venus appear to change phases, because from Earth only part of the reflected sunlight can be seen as these two move in their orbit. The Earth has many man made or artificial satellites that are nearer than the Moon , and therefore, do not reflect sunlight regularly. They can seen for ...
... 4. The Moon and Venus appear to change phases, because from Earth only part of the reflected sunlight can be seen as these two move in their orbit. The Earth has many man made or artificial satellites that are nearer than the Moon , and therefore, do not reflect sunlight regularly. They can seen for ...
From Rubber Bands to Big Bangs
... The Universe has been expanding for almost 14 billion years from a smaller, hotter, denser form to its present cooler, larger, and less dense form. You might ask, “What is expanding, and how do we know that?” The Cosmic Microwave Background Radiation (CMB) is scientific evidence that shows space its ...
... The Universe has been expanding for almost 14 billion years from a smaller, hotter, denser form to its present cooler, larger, and less dense form. You might ask, “What is expanding, and how do we know that?” The Cosmic Microwave Background Radiation (CMB) is scientific evidence that shows space its ...
telescope
... • Studies of how stars shine may one day lead to improved or new energy sources on Earth. • Astronomers may also learn how to protect us from potential catastrophes, such as collisions between asteroids and Earth. ...
... • Studies of how stars shine may one day lead to improved or new energy sources on Earth. • Astronomers may also learn how to protect us from potential catastrophes, such as collisions between asteroids and Earth. ...
Relativity
... • The energy generated as hydrogen deep within our star continuously fuses to form helium. Earth • Einstein's formula accounts for the heat in our planet's interior, which is kept warm by a steady barrage of E = mc2 conversions occurring within unstable radioactive elements such as uranium and thori ...
... • The energy generated as hydrogen deep within our star continuously fuses to form helium. Earth • Einstein's formula accounts for the heat in our planet's interior, which is kept warm by a steady barrage of E = mc2 conversions occurring within unstable radioactive elements such as uranium and thori ...
August Evening Skies
... The double star in Scorpius is somewhat harder. Much more difficult is the double star near Vega in Lyra. The open or galactic star cluster (OCl) known ...
... The double star in Scorpius is somewhat harder. Much more difficult is the double star near Vega in Lyra. The open or galactic star cluster (OCl) known ...
Class 4 Galaxies Galaxy Classification Formation of Galaxies
... collapse of the galaxy cloud. These explosions also introduced heavier metals, such as carbon and nitrogen, into the galactic cloud. Eventually, this process of collapse, star formation, and slowing, balanced, giving us stable galaxies. The oldest star: HE 1523-0901 is a red giant star located in th ...
... collapse of the galaxy cloud. These explosions also introduced heavier metals, such as carbon and nitrogen, into the galactic cloud. Eventually, this process of collapse, star formation, and slowing, balanced, giving us stable galaxies. The oldest star: HE 1523-0901 is a red giant star located in th ...
Stellar Spectra Classification
... Introduction: Classifying stars based on brightness is somewhat problematic. A star’s apparent brightness can be affected by its distance from the observer, its size, or by the presence of interstellar dust. Instead, astronomers classify stars based on the major components of their spectra. Much lik ...
... Introduction: Classifying stars based on brightness is somewhat problematic. A star’s apparent brightness can be affected by its distance from the observer, its size, or by the presence of interstellar dust. Instead, astronomers classify stars based on the major components of their spectra. Much lik ...
LIfe of a Star
... Shows the relationship between a star’s surface temperature and absolute magnitude Used to study the lives of stars Most stars lie along the main sequence portion of the diagram ...
... Shows the relationship between a star’s surface temperature and absolute magnitude Used to study the lives of stars Most stars lie along the main sequence portion of the diagram ...
File
... 6. How would you classify the sun based on each of these characteristics? Building Vocabulary From the list below, choose the term that best completes each sentence and then write the entire sentence in your notebook. spectrograph constellation light-year ...
... 6. How would you classify the sun based on each of these characteristics? Building Vocabulary From the list below, choose the term that best completes each sentence and then write the entire sentence in your notebook. spectrograph constellation light-year ...
An earthllke planet would have a rocky mantle surround
... more.ubiquitous than we imagine today. The Rare Earth hypothesis is fundamentally anti-Copernican. And Copernlcan ism is crucial to most successful major scientific theories. Future planet surveys. discoveries in astrobiology. and exoplanet chemistry will continue to chip away at the arguments the R ...
... more.ubiquitous than we imagine today. The Rare Earth hypothesis is fundamentally anti-Copernican. And Copernlcan ism is crucial to most successful major scientific theories. Future planet surveys. discoveries in astrobiology. and exoplanet chemistry will continue to chip away at the arguments the R ...
25 centuries ago, the ancients came up with theories such as:
... What was the approximate size of life as we know it now before the “big bang” theory? a) The size of a grapefruit b) The size of a tennis ball c) The size of a pool table ball d) The size of a golf ball Who invented the telescope? a) Newton b) Van Leeboohook c) Galileo d) Da Vinci How long since the ...
... What was the approximate size of life as we know it now before the “big bang” theory? a) The size of a grapefruit b) The size of a tennis ball c) The size of a pool table ball d) The size of a golf ball Who invented the telescope? a) Newton b) Van Leeboohook c) Galileo d) Da Vinci How long since the ...
The Herschel view on the dust properties of the Large Magellanic
... • Motivations. The electromagnetic emission from a galaxy contains information about the physical conditions therein experienced. In star forming regions, most of the power is reradiated by dust, in the infrared. The knowledge of the grain properties (their abundance, chemical composition and size d ...
... • Motivations. The electromagnetic emission from a galaxy contains information about the physical conditions therein experienced. In star forming regions, most of the power is reradiated by dust, in the infrared. The knowledge of the grain properties (their abundance, chemical composition and size d ...
X Ray Astronomy
... • This can show information like how many X-rays are coming from the object at a particular energy. There are also some electron transitions which have lines in the "soft" (low-energy) X-ray band. If these are not there then we can tell that, for example, there is very little (or even no) cool X-ray ...
... • This can show information like how many X-rays are coming from the object at a particular energy. There are also some electron transitions which have lines in the "soft" (low-energy) X-ray band. If these are not there then we can tell that, for example, there is very little (or even no) cool X-ray ...
The mid- and far-infrared range - International Space Science Institute
... wavelengths from 25 µm to 100 µm, and is then going over into the sub-millimetre domain. The spectra of cool interstellar and circumstellar regions show absorption or emission, characteristic for dust compounds. In addition, broad emission bands are often present due to fluorescence of large molecul ...
... wavelengths from 25 µm to 100 µm, and is then going over into the sub-millimetre domain. The spectra of cool interstellar and circumstellar regions show absorption or emission, characteristic for dust compounds. In addition, broad emission bands are often present due to fluorescence of large molecul ...
Distances in space are so large that it does not make sense to use a
... enormous distance in one year. Proxima Centauri is the nearest star to the Earth other than the Sun. Since Proxima Centauri is 4.3 light years away, it takes 4.3 years for the light from the star to travel the distance needed to reach the Earth. It is important to remember that a light-year is a mea ...
... enormous distance in one year. Proxima Centauri is the nearest star to the Earth other than the Sun. Since Proxima Centauri is 4.3 light years away, it takes 4.3 years for the light from the star to travel the distance needed to reach the Earth. It is important to remember that a light-year is a mea ...
Gas and dust evolution in distant AGN
... narrow line radio galaxies (HzRG) - 10 optical spectra (UV-rest) of high redshfit X-ray selected QSO2 in the Chandra Deep Field South ...
... narrow line radio galaxies (HzRG) - 10 optical spectra (UV-rest) of high redshfit X-ray selected QSO2 in the Chandra Deep Field South ...
Exploring the Planet Forming Environments of Young Suns
... • spots induce spectral line asymmetries • bisector span should correlate with the radial velocity if a spot is present ...
... • spots induce spectral line asymmetries • bisector span should correlate with the radial velocity if a spot is present ...
VIBRATIONS AND WAVES
... 1. What kinds of waves have the longest wavelength? What kinds of waves have the shortest wavelength? ______________________________________________________________________________________________ 2. Which waves have the lowest frequency? _____________________________________________________________ ...
... 1. What kinds of waves have the longest wavelength? What kinds of waves have the shortest wavelength? ______________________________________________________________________________________________ 2. Which waves have the lowest frequency? _____________________________________________________________ ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.