Lecture2 - UCSB Physics
... How far? Summary • Measuring distances is essential to learn how big is the universe and how much stuff there is in it • To measure distances of far away objects, more than 100kpc or so, astronomers use “standard candles” such as Supernovae • Using Supernovae or other standard candles, astronome ...
... How far? Summary • Measuring distances is essential to learn how big is the universe and how much stuff there is in it • To measure distances of far away objects, more than 100kpc or so, astronomers use “standard candles” such as Supernovae • Using Supernovae or other standard candles, astronome ...
Think about the universe
... This nuclear fusion reaction in stars Nebula in the constellation of Orion is a nebula large releases vast amounts of energy. enough to be seen with the naked eye. The collapse continues under the influence of gravity, forming visible globules in the nebula cloud. As the globules collapse further, t ...
... This nuclear fusion reaction in stars Nebula in the constellation of Orion is a nebula large releases vast amounts of energy. enough to be seen with the naked eye. The collapse continues under the influence of gravity, forming visible globules in the nebula cloud. As the globules collapse further, t ...
An Opportunistic Search for ExtraTerrestrial Intelligence (SETI) with
... rather than the exception, for example on average 1.0 ± 0.1 planets per M dwarf star in our Galaxy (Swift et al. 2013), one would therefore expect dozens of nearby (within 50 lightyears) planets in a single MWA field of view and far greater numbers of more distant planets. The MWA field of view ther ...
... rather than the exception, for example on average 1.0 ± 0.1 planets per M dwarf star in our Galaxy (Swift et al. 2013), one would therefore expect dozens of nearby (within 50 lightyears) planets in a single MWA field of view and far greater numbers of more distant planets. The MWA field of view ther ...
Contents - Classroom Complete Press
... a) Label the diagrams using the following words: star, solar system, galaxy. ...
... a) Label the diagrams using the following words: star, solar system, galaxy. ...
Lecture 5
... recent years, astronomers have developed several very reliable and independent methods of determining the distances to the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC), two of the nearby satellite galaxies of our own Milky Way Galaxy. Since the LMC and SMC contain large number of Ce ...
... recent years, astronomers have developed several very reliable and independent methods of determining the distances to the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC), two of the nearby satellite galaxies of our own Milky Way Galaxy. Since the LMC and SMC contain large number of Ce ...
Slide 1
... recent years, astronomers have developed several very reliable and independent methods of determining the distances to the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC), two of the nearby satellite galaxies of our own Milky Way Galaxy. Since the LMC and SMC contain large number of Ce ...
... recent years, astronomers have developed several very reliable and independent methods of determining the distances to the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC), two of the nearby satellite galaxies of our own Milky Way Galaxy. Since the LMC and SMC contain large number of Ce ...
A Modern View of the Universe
... shrunk down to a scale that would allow you to walk through it. The Voyage scale model solar system in Washington, D.C., makes such a walk possible (Figure 1.4). The Voyage model shows the Sun and the planets, and the distances between them, at one ten-billionth of their actual sizes and distances. ...
... shrunk down to a scale that would allow you to walk through it. The Voyage scale model solar system in Washington, D.C., makes such a walk possible (Figure 1.4). The Voyage model shows the Sun and the planets, and the distances between them, at one ten-billionth of their actual sizes and distances. ...
FREE Sample Here
... past, rather than as it is now. This is because the light we see has taken time to travel from the object to us. 3) Starting from the Big Bang, briefly explain how our solar system came to contain the chemical elements necessary to make Earth and living organisms. Answer: The Big Bang produced hydro ...
... past, rather than as it is now. This is because the light we see has taken time to travel from the object to us. 3) Starting from the Big Bang, briefly explain how our solar system came to contain the chemical elements necessary to make Earth and living organisms. Answer: The Big Bang produced hydro ...
First Light for May, 2001 - South Bay Astronomical Society
... The transit method can only find systems that are aligned with our line of sight. The Stellar Wobble Method can find planetary systems that are not fully aligned with our line of sight but still have a component that provides a relative motion towards or away from Earth. Thus, the Wobble method pro ...
... The transit method can only find systems that are aligned with our line of sight. The Stellar Wobble Method can find planetary systems that are not fully aligned with our line of sight but still have a component that provides a relative motion towards or away from Earth. Thus, the Wobble method pro ...
arXiv:1404.0641v2 [astro
... environment enough to be noticed from space (for example, Mend´ez et al. (2013)). It seems reasonable to fix the period of ∼ 4 Gyr as the minimum necessary time for the formation of complex life at optimal conditions equivalent to ones established on the Earth. From this point of view, most (if not ...
... environment enough to be noticed from space (for example, Mend´ez et al. (2013)). It seems reasonable to fix the period of ∼ 4 Gyr as the minimum necessary time for the formation of complex life at optimal conditions equivalent to ones established on the Earth. From this point of view, most (if not ...
Powerpoint slides
... the Andromeda Galaxy. How far away does the audience think the Andromeda Galaxy is from the Milky Way? After their experience with stars within the galaxy, many audience members will try to send your second volunteer to another city! Surprisingly enough, the answer is eight feet, or approximately 20 ...
... the Andromeda Galaxy. How far away does the audience think the Andromeda Galaxy is from the Milky Way? After their experience with stars within the galaxy, many audience members will try to send your second volunteer to another city! Surprisingly enough, the answer is eight feet, or approximately 20 ...
FREE Sample Here - Find the cheapest test bank for your
... A) It contains between 100 billion and 1 trillion stars. B) Our solar system is located very close to the center of the Milky Way Galaxy. C) The galaxy is about 100,000 light-years in diameter. D) One rotation of the galaxy takes about 200 million years. Answer: B 25) Which of the following correctl ...
... A) It contains between 100 billion and 1 trillion stars. B) Our solar system is located very close to the center of the Milky Way Galaxy. C) The galaxy is about 100,000 light-years in diameter. D) One rotation of the galaxy takes about 200 million years. Answer: B 25) Which of the following correctl ...
Primordial planets, comets and moons foster life in the cosmos
... at time ~ 1011 seconds after the big bang event over energy. From HGD, 97% of the mass at that time is non-baryonic, with the weakly collisional properties and mass of neutrinos (green). The rest (yellow) is hydrogen-helium plasma (protons, alpha particles and electrons). The total mass is slightly ...
... at time ~ 1011 seconds after the big bang event over energy. From HGD, 97% of the mass at that time is non-baryonic, with the weakly collisional properties and mass of neutrinos (green). The rest (yellow) is hydrogen-helium plasma (protons, alpha particles and electrons). The total mass is slightly ...
DTU_9e_ch15
... Where is our solar system located in the Milky Way Galaxy? The solar system is between the Sagittarius and Perseus spiral arms, about 26,000 ly from the center of the Galaxy (about halfway out to the visible edge of the galactic disk). ...
... Where is our solar system located in the Milky Way Galaxy? The solar system is between the Sagittarius and Perseus spiral arms, about 26,000 ly from the center of the Galaxy (about halfway out to the visible edge of the galactic disk). ...
ies la arboleda – centro tic - plurilingüe
... are shown in the pictures. We may use telescopes, astronomical observatories, planetary explorers like robotic rovers, artificial satellites, spatial stations and others. TASK Match the name to the definition and its picture. ...
... are shown in the pictures. We may use telescopes, astronomical observatories, planetary explorers like robotic rovers, artificial satellites, spatial stations and others. TASK Match the name to the definition and its picture. ...
FREE Sample Here
... past, rather than as it is now. This is because the light we see has taken time to travel from the object to us. 3) Starting from the Big Bang, briefly explain how our solar system came to contain the chemical elements necessary to make Earth and living organisms. Answer: The Big Bang produced hydro ...
... past, rather than as it is now. This is because the light we see has taken time to travel from the object to us. 3) Starting from the Big Bang, briefly explain how our solar system came to contain the chemical elements necessary to make Earth and living organisms. Answer: The Big Bang produced hydro ...
Chapter 31 - The Galaxy & Universe
... 1. The outcome of the Universe depends on the amount (density) of material in it. a) Less than critical density (10-26 kg/m3) results in open Universe. ...
... 1. The outcome of the Universe depends on the amount (density) of material in it. a) Less than critical density (10-26 kg/m3) results in open Universe. ...
Tyler Gray - Angelfire
... (1851-1923) at Dorpat Observatory in Estonia. It reached mag 6 between August 17 and 20, and it was independently found by several observers. However, only Hartwig realized its significance. It faded to mag 16 in February 1890. ...
... (1851-1923) at Dorpat Observatory in Estonia. It reached mag 6 between August 17 and 20, and it was independently found by several observers. However, only Hartwig realized its significance. It faded to mag 16 in February 1890. ...
Age Aspects of Habitability
... presume the presence of an oxygen atmosphere as necessary for a planet to host a complex life. Such life would have modified the global planetary (or atmospheric) properties to be noticed from space, and from very far away; after all, the closest potentially habitable planet is at about 12 light yea ...
... presume the presence of an oxygen atmosphere as necessary for a planet to host a complex life. Such life would have modified the global planetary (or atmospheric) properties to be noticed from space, and from very far away; after all, the closest potentially habitable planet is at about 12 light yea ...
Kepler Mission: The Search for Earth-sized Planets
... For which of these star(s) will Kepler be able to detect transiting planets? ...
... For which of these star(s) will Kepler be able to detect transiting planets? ...
19 The Milky Way Galaxy
... Structure of the Milky Way 1. Select bright objects that you can see throughout the Milky Way and trace their directions and distances. 2. Observe objects at radio and infrared wavelengths to circumvent the problem of optical obscuration, and catalog their directions and distances. 3. Trace the orbi ...
... Structure of the Milky Way 1. Select bright objects that you can see throughout the Milky Way and trace their directions and distances. 2. Observe objects at radio and infrared wavelengths to circumvent the problem of optical obscuration, and catalog their directions and distances. 3. Trace the orbi ...
Milky Way I
... near the center move faster than those farther away • This produces a spiral structure but should quickly wind up after a few rotations and disappear • What then preserves the arms? ...
... near the center move faster than those farther away • This produces a spiral structure but should quickly wind up after a few rotations and disappear • What then preserves the arms? ...
Explosive sources of the highest energy radiation
... energy source population is in 2008 and has the EM spectrum, it is only self-evident. in the past couple of decades The primary channels to discovered around that sensitive gamma-ray produce gamma-rays at these 2000 distinct telescopes have opened our energies can be split into hadgamma-ray eyes to ...
... energy source population is in 2008 and has the EM spectrum, it is only self-evident. in the past couple of decades The primary channels to discovered around that sensitive gamma-ray produce gamma-rays at these 2000 distinct telescopes have opened our energies can be split into hadgamma-ray eyes to ...
Long Ago and Far Away
... Light travels very fast, but not infinitely fast. For example, it takes light from the Sun about 8 minutes to reach Earth. So a telescope is like a time machine – objects appear as they were when the light we see left them, not as they are right now. When we look at the distant universe, we see gala ...
... Light travels very fast, but not infinitely fast. For example, it takes light from the Sun about 8 minutes to reach Earth. So a telescope is like a time machine – objects appear as they were when the light we see left them, not as they are right now. When we look at the distant universe, we see gala ...
Slide 1
... • A. It is a cloud-like halo that surrounds the disks of spiral galaxies • B. It was a term used historically to refer to any galaxy • C. It is a cloud of hydrogen gas that we detect by looking at light from quasars • D. It is a cloud of matter that contracts to become a galaxy ...
... • A. It is a cloud-like halo that surrounds the disks of spiral galaxies • B. It was a term used historically to refer to any galaxy • C. It is a cloud of hydrogen gas that we detect by looking at light from quasars • D. It is a cloud of matter that contracts to become a galaxy ...
Fermi paradox
The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations, such as in the Drake equation, and the lack of evidence for such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and there are billions of stars in the galaxy that are billions of years older. With high probability, some of these stars will have Earth-like planets, and if the earth is typical, some might develop intelligent life. Some of these civilizations might develop interstellar travel, a step the Earth is investigating now. Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in about a million years.According to this line of thinking, the Earth should already have been visited by extraterrestrial aliens though Fermi saw no convincing evidence of this, nor any signs of alien intelligence anywhere in the observable universe, leading him to ask, ""Where is everybody?""