Completing the Census of Exoplanetary Systems with
... understand planet formation and evolution. – Most giant planets likely formed beyond the snow line. – Place our solar system in context. – Water for habitable planets likely delivered from beyond the snow line. – Understand the frequency of planet formation in different environments. ...
... understand planet formation and evolution. – Most giant planets likely formed beyond the snow line. – Place our solar system in context. – Water for habitable planets likely delivered from beyond the snow line. – Understand the frequency of planet formation in different environments. ...
Scale in the Solar System
... still 35 million miles away. That’s more distance than it would be to fly to the Moon and back 75 times. You could fly from Los Angeles to New York and back every day and it would still take you 20 years to travel that far. Jupiter is ten times farther away. Students have a hard time dealing with su ...
... still 35 million miles away. That’s more distance than it would be to fly to the Moon and back 75 times. You could fly from Los Angeles to New York and back every day and it would still take you 20 years to travel that far. Jupiter is ten times farther away. Students have a hard time dealing with su ...
How Cosmic Clocks Tick - Max-Planck
... repeated exactly every 1.33730109 seconds. She and her dissertation advisor, Antony Hewish, jokingly named the source Little Green Man, thinking of signs from an extraterrestrial civilization. This, at least, seemed to Hewish to be the most obvious explanation for the rapid succession of radio pulse ...
... repeated exactly every 1.33730109 seconds. She and her dissertation advisor, Antony Hewish, jokingly named the source Little Green Man, thinking of signs from an extraterrestrial civilization. This, at least, seemed to Hewish to be the most obvious explanation for the rapid succession of radio pulse ...
Chapter 9 / Adobe Acrobat Document
... space suddenly and rapidly expanded to an immense size. 4. George Gamow predicted that the background radiation in the universe should have cooled to about −269°C. The cosmic background radiation detected by Robert Wilson and Arno Penzias and later confirmed by the COBE and WMAP satellites correspon ...
... space suddenly and rapidly expanded to an immense size. 4. George Gamow predicted that the background radiation in the universe should have cooled to about −269°C. The cosmic background radiation detected by Robert Wilson and Arno Penzias and later confirmed by the COBE and WMAP satellites correspon ...
PPT 15MB - HubbleSOURCE
... of covered by 1/2 full moon; (it’s cropped to a smaller area in press image, however, about 0.4 degrees across in panel “b”) The Paschen series of hydrogen spectral lines in the infrared is named after the German physicist Louis Paschen, who discovered them in 1908 (the alpha line, at 1.87 microns ...
... of covered by 1/2 full moon; (it’s cropped to a smaller area in press image, however, about 0.4 degrees across in panel “b”) The Paschen series of hydrogen spectral lines in the infrared is named after the German physicist Louis Paschen, who discovered them in 1908 (the alpha line, at 1.87 microns ...
Refuges for Life in a - University of Arizona
... the stars, enriching their metal content. Most astronomers now think that stars do gobble up planets and smaller bodies. But the outer convective layers of sunlike stars are so massive and so well mixed that they would need to devour an unreasonable amount of planetary material to fully account for ...
... the stars, enriching their metal content. Most astronomers now think that stars do gobble up planets and smaller bodies. But the outer convective layers of sunlike stars are so massive and so well mixed that they would need to devour an unreasonable amount of planetary material to fully account for ...
Page 25 - Types of Galaxies
... • Edwin Hubble classified galaxies into four major types: A) spiral B) barred spiral C) elliptical D) irregular • Most galaxies are spirals, barred spirals, or ellipticals. • Earth can be found in the Milky Way Galaxy, which is a spiral galaxy ...
... • Edwin Hubble classified galaxies into four major types: A) spiral B) barred spiral C) elliptical D) irregular • Most galaxies are spirals, barred spirals, or ellipticals. • Earth can be found in the Milky Way Galaxy, which is a spiral galaxy ...
Thermonuclear Reactions: The Beginning and the
... m is the earth's mass (5.94×1024 kg), a rocket (mass mx) must have a velocity of about 11 km/s to escape from the earth's surface (the escape velocity, ve). Conversely, for a given velocity, ve, one can calculate the mass and size of the large body needed to hamper such an escape. A body with our so ...
... m is the earth's mass (5.94×1024 kg), a rocket (mass mx) must have a velocity of about 11 km/s to escape from the earth's surface (the escape velocity, ve). Conversely, for a given velocity, ve, one can calculate the mass and size of the large body needed to hamper such an escape. A body with our so ...
Option E Sum Pages
... E.7. Stellar spectra and chemical composition Information from the spectra and spectral classes Light is produced in nuclear fission reactions deep in the core of a star and is absorbed and re-emitted many times on its way out to the surface, and therefore has a rather continuous distribution of w ...
... E.7. Stellar spectra and chemical composition Information from the spectra and spectral classes Light is produced in nuclear fission reactions deep in the core of a star and is absorbed and re-emitted many times on its way out to the surface, and therefore has a rather continuous distribution of w ...
Semester 2 Course Review
... How does the angle of the sun’s rays impact climate differently from the equator to the poles? What effect do lakes and oceans have on climate? What effect does geography have on climate? How can global climate change be studied? How have different conditions on earth contributed to global climate c ...
... How does the angle of the sun’s rays impact climate differently from the equator to the poles? What effect do lakes and oceans have on climate? What effect does geography have on climate? How can global climate change be studied? How have different conditions on earth contributed to global climate c ...
IV. ASTRONOMY: THE SUN and the MOON
... A. Stars are huge, opaque, luminous balls of gas held together by the mutual gravitational attraction of their constituent particles. 1. There are about 400 billion stars in our Milky Way Galaxy. The Sun is typical in size, but much closer to us than any other star. 2. The very hot, dense, ionized i ...
... A. Stars are huge, opaque, luminous balls of gas held together by the mutual gravitational attraction of their constituent particles. 1. There are about 400 billion stars in our Milky Way Galaxy. The Sun is typical in size, but much closer to us than any other star. 2. The very hot, dense, ionized i ...
The Transient Radio Sky Astrophysical and Artificial
... •Standard (comoving) rod, S, fixed by sound horizon (acoustic oscillations) at recombination – measured as acoustic peaks in CMB fluctuations •Follow evolution of S down to lower redshift through source clustering measure angular diameter distance (‘fossilized’ acoustic oscillations vs. z) ...
... •Standard (comoving) rod, S, fixed by sound horizon (acoustic oscillations) at recombination – measured as acoustic peaks in CMB fluctuations •Follow evolution of S down to lower redshift through source clustering measure angular diameter distance (‘fossilized’ acoustic oscillations vs. z) ...
ISP 205: Visions of the Universe
... in the local Solar neighborhood… • typical relative speeds of more than 70,000 km/hr • but stars are so far away that we cannot easily notice ...
... in the local Solar neighborhood… • typical relative speeds of more than 70,000 km/hr • but stars are so far away that we cannot easily notice ...
Cosmological Structure Formation
... • A radical change of this situation occurs once the temperature starts to drop below T~3000 K. and electrons. Thermodynamically it becomes favorable to form neutral (hydrogen) atoms H (because the photons can no longer destory the atoms): • This transition is usually marked by the word “recombinati ...
... • A radical change of this situation occurs once the temperature starts to drop below T~3000 K. and electrons. Thermodynamically it becomes favorable to form neutral (hydrogen) atoms H (because the photons can no longer destory the atoms): • This transition is usually marked by the word “recombinati ...
Astronomy Practice Test 1
... A. The Sun moves closer to Earth in summer and farther away in winter. B. Earth, with its tilted axis, moves around the Sun in a predictable way. C. There is a predictable change in the amount of heat and light given off by the Sun. D. Earth turns slower in summer than it does in winter. 38. How doe ...
... A. The Sun moves closer to Earth in summer and farther away in winter. B. Earth, with its tilted axis, moves around the Sun in a predictable way. C. There is a predictable change in the amount of heat and light given off by the Sun. D. Earth turns slower in summer than it does in winter. 38. How doe ...
James`s 5-Page Final Exam Review
... b. Hot Jupiter. Let’s say we’ve detected a 2 Msun star, and have noticed that it is wobbling with a period of 3 months, and that we hypothesize that this means that the star has a planet orbiting it once every 3 months. i. Find out the semimajor axis of our unseen planet. ...
... b. Hot Jupiter. Let’s say we’ve detected a 2 Msun star, and have noticed that it is wobbling with a period of 3 months, and that we hypothesize that this means that the star has a planet orbiting it once every 3 months. i. Find out the semimajor axis of our unseen planet. ...
Space Information Booklet
... out from the Sun (its inner edge is about at the orbit of Neptune, while its outer edge is about twice that diameter). Kuiper Belt Objects (KBOs) are, as their name implies, objects that originate from or orbit in the Kuiper Belt. Pluto is the only one KBO which was known for more than 60 years. Ma ...
... out from the Sun (its inner edge is about at the orbit of Neptune, while its outer edge is about twice that diameter). Kuiper Belt Objects (KBOs) are, as their name implies, objects that originate from or orbit in the Kuiper Belt. Pluto is the only one KBO which was known for more than 60 years. Ma ...
2012年雅思阅读考试考前冲刺试题（1）
... 4.Developed by the French space agency，CNES，and partnered by the European Space Agency (ESA)， Austria，Belgium，Germany，Brazil and Spain，Corot will monitor around 120,000 stars with its 27cm telescope from a polar orbit 514 miles above the Earth.Over two and a half years，it will focus on five to six d ...
... 4.Developed by the French space agency，CNES，and partnered by the European Space Agency (ESA)， Austria，Belgium，Germany，Brazil and Spain，Corot will monitor around 120,000 stars with its 27cm telescope from a polar orbit 514 miles above the Earth.Over two and a half years，it will focus on five to six d ...
AST 111 – Introduction to Astronomy
... If you have not taken a telecourse before, you will find that it is different than a regular classroom course. By telecourse, the student, meaning you, has the freedom to set their own class hours, but they will assume more of the responsibility for the following material. You will do well if you us ...
... If you have not taken a telecourse before, you will find that it is different than a regular classroom course. By telecourse, the student, meaning you, has the freedom to set their own class hours, but they will assume more of the responsibility for the following material. You will do well if you us ...
EARTH SCIENCE REGENTS REVIEW
... * The Milky Way galaxy is about 100,000 light years across and has a spiral shape. We are located towards the end of a spiral arm. * A light year is the distance light travels in one year (9.5 trillion kilometers) * The Sun is an average star (part of the Main Sequence) and is about half-way through ...
... * The Milky Way galaxy is about 100,000 light years across and has a spiral shape. We are located towards the end of a spiral arm. * A light year is the distance light travels in one year (9.5 trillion kilometers) * The Sun is an average star (part of the Main Sequence) and is about half-way through ...
Slide 1
... • Electrons packed in tight have a higher energy than normal and exert a pressure higher than normal ideal gas. Hence, this degenerate situation stops the collapse: • P ~ r (density) about 100 x P (ideal gas) • Electron energy and momentum become relativistic as calculated by S. Chandraseker (Nobel ...
... • Electrons packed in tight have a higher energy than normal and exert a pressure higher than normal ideal gas. Hence, this degenerate situation stops the collapse: • P ~ r (density) about 100 x P (ideal gas) • Electron energy and momentum become relativistic as calculated by S. Chandraseker (Nobel ...
Week 9A
... Orbit Around the Galaxy The Sun orbits the Galaxy at ~230 km/s. The Sun takes ~230 million years to orbit the Galaxy. Using Kepler’s Law and the mass and speed of the Sun, we estimate the mass of the Galaxy to be 1.1x1011 solar masses. ...
... Orbit Around the Galaxy The Sun orbits the Galaxy at ~230 km/s. The Sun takes ~230 million years to orbit the Galaxy. Using Kepler’s Law and the mass and speed of the Sun, we estimate the mass of the Galaxy to be 1.1x1011 solar masses. ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.