No Slide Title
... Alpha Centauri is the closest star. Most stars are too distant to measure a parallax. ...
... Alpha Centauri is the closest star. Most stars are too distant to measure a parallax. ...
Star Types
... Mass is the single most important property in how a star’s life and death will proceed. ...
... Mass is the single most important property in how a star’s life and death will proceed. ...
Stars, Galaxies, and the Universe Section 3 Stars, Galaxies, and the
... • Binary stars are pairs of stars that revolve around each other and are held together by gravity. The center of mass, or barycenter, is somewhere between the two stars. • In star systems that have more than two stars, two stars may revolve rapidly around a common barycenter, while a third star revo ...
... • Binary stars are pairs of stars that revolve around each other and are held together by gravity. The center of mass, or barycenter, is somewhere between the two stars. • In star systems that have more than two stars, two stars may revolve rapidly around a common barycenter, while a third star revo ...
The closest extrasolar planet: A giant planet around the M4 dwarf Gl
... perhaps contain life sustaining planets. Also, the selection function of the radial velocity planet searches has a relatively sharp optimum around spectral class G. Essentially all stars hotter than approximately F5 have fast rotation (Wolf et al., 1982), so that it is impossible to measure their ra ...
... perhaps contain life sustaining planets. Also, the selection function of the radial velocity planet searches has a relatively sharp optimum around spectral class G. Essentially all stars hotter than approximately F5 have fast rotation (Wolf et al., 1982), so that it is impossible to measure their ra ...
Document
... The Nature of Fuzzy Objects • But, this was vigorously debated in early 1900s… • The Great Debate (1920) – NAS – downtown DC – Debate between Harlow Shapley and Heber Curtis – Shapley argued for nebula all being local (i.e. within the Milky Way) – Curtis argued for “island universe” hypothesis (i.e ...
... The Nature of Fuzzy Objects • But, this was vigorously debated in early 1900s… • The Great Debate (1920) – NAS – downtown DC – Debate between Harlow Shapley and Heber Curtis – Shapley argued for nebula all being local (i.e. within the Milky Way) – Curtis argued for “island universe” hypothesis (i.e ...
Activity: Stellar Evolution Scavenger Hunt - Chandra X
... This stunning image (formally known as NGC 6543 ) is a composite of X-ray data from NASA's Chandra X-ray Observatory (blue) and optical light from the Hubble Space Telescope (red and purple). This famous object represents a phase of evolution that our Sun will experience several billion years from n ...
... This stunning image (formally known as NGC 6543 ) is a composite of X-ray data from NASA's Chandra X-ray Observatory (blue) and optical light from the Hubble Space Telescope (red and purple). This famous object represents a phase of evolution that our Sun will experience several billion years from n ...
File - Science Partnership
... Our search for the answer to these sorts of questions are not only in the realm of science but also literature, religion and philosophy. As scientists: We hope to understand the origin and evolution of our world. We want to understand the structure and climates of other worlds to see what they tell ...
... Our search for the answer to these sorts of questions are not only in the realm of science but also literature, religion and philosophy. As scientists: We hope to understand the origin and evolution of our world. We want to understand the structure and climates of other worlds to see what they tell ...
CURRICULUM COMMITTEE COURSE PROPOSAL FORM
... The discovery of exoplanets is one of the greatest revolutions in modern astronomy. Over eighteen hundred exoplanets have been discovered to date. The universe is teeming with planets - hot Jupiter-like planets skimming the surfaces of their stars, free-floating planets far from any star, super-Eart ...
... The discovery of exoplanets is one of the greatest revolutions in modern astronomy. Over eighteen hundred exoplanets have been discovered to date. The universe is teeming with planets - hot Jupiter-like planets skimming the surfaces of their stars, free-floating planets far from any star, super-Eart ...
Stellar Evolution
... matter forms a disk, called accretion disk. Matter in the accretion disk heats up to ~ 1 million K ...
... matter forms a disk, called accretion disk. Matter in the accretion disk heats up to ~ 1 million K ...
Stellar Properties
... 17-1 How we can measure the 17-9 How we can use binary stars to distances to the stars measure the masses of stars 17-2 How we measure a star’s 17-10 How we can learn about binary brightness and luminosity stars in very close orbits 17-3 The magnitude scale for 17-11 What eclipsing binaries are and ...
... 17-1 How we can measure the 17-9 How we can use binary stars to distances to the stars measure the masses of stars 17-2 How we measure a star’s 17-10 How we can learn about binary brightness and luminosity stars in very close orbits 17-3 The magnitude scale for 17-11 What eclipsing binaries are and ...
Life Cycle of Stars
... Hubble Space Telescope ACS/HRC – NASA, ESA, N.Evans (Harvard-Smithsonian CfA), and H.Bond (S TScl) ...
... Hubble Space Telescope ACS/HRC – NASA, ESA, N.Evans (Harvard-Smithsonian CfA), and H.Bond (S TScl) ...
Final review - Physics and Astronomy
... Life Elsewhere in the Milky Way: To address question of whether other intelligent life exists in the Milky Way, Frank Drake formulated the Drake Equation. The equation is usually written: ...
... Life Elsewhere in the Milky Way: To address question of whether other intelligent life exists in the Milky Way, Frank Drake formulated the Drake Equation. The equation is usually written: ...
The Origin of the Solar System Chapter 8:
... 1) Observations of extrasolar planets indicate that Jovian planets are common. 2) Protoplanetary disks tend to be evaporated quickly (typically within ~ 100,000 years) by the radiation of nearby massive stars. ...
... 1) Observations of extrasolar planets indicate that Jovian planets are common. 2) Protoplanetary disks tend to be evaporated quickly (typically within ~ 100,000 years) by the radiation of nearby massive stars. ...
Universe 8e Lecture Chapter 17 Nature of Stars
... apparent brightness of a star. The color ratios of a star are the ratios of brightness values obtained through different standard filters, such as the U, B, and V filters. These ratios are a measure of the star’s surface temperature. Spectral Types: Stars are classified into spectral types (subdivis ...
... apparent brightness of a star. The color ratios of a star are the ratios of brightness values obtained through different standard filters, such as the U, B, and V filters. These ratios are a measure of the star’s surface temperature. Spectral Types: Stars are classified into spectral types (subdivis ...
PPT file
... “there are more stars in the universe than grains of sand on all the beaches of Earth.” In between stars there is interstellar matter, which is made up of gas (mostly Hydrogen) and dust. Birth of a Star Gravity attracts chunks of gas and dust in a nebula to come ...
... “there are more stars in the universe than grains of sand on all the beaches of Earth.” In between stars there is interstellar matter, which is made up of gas (mostly Hydrogen) and dust. Birth of a Star Gravity attracts chunks of gas and dust in a nebula to come ...
Milky Way - Wayne Hu`s Tutorials
... • A fall off in the number density in radial distance would determine the edge of the galaxy • Suppose there is an indicator of absolute magnitude like spectral type that allows stars to be selected to within dM of M • Describe the underlying quantity to be extracted as the spatial number density wi ...
... • A fall off in the number density in radial distance would determine the edge of the galaxy • Suppose there is an indicator of absolute magnitude like spectral type that allows stars to be selected to within dM of M • Describe the underlying quantity to be extracted as the spatial number density wi ...
STEM for TY Teachers
... continuously expanding state. According to recent measurements, observations and scientific evidence, this original state existed around 13.7 billion years ago, which is currently considered as the age of the known Universe. Prior to the hot stage of the Big Bang, a very short-lived earlier stage of ...
... continuously expanding state. According to recent measurements, observations and scientific evidence, this original state existed around 13.7 billion years ago, which is currently considered as the age of the known Universe. Prior to the hot stage of the Big Bang, a very short-lived earlier stage of ...
Binary Star - Armagh Observatory
... continuously expanding state. According to recent measurements, observations and scientific evidence, this original state existed around 13.7 billion years ago, which is currently considered as the age of the known Universe. Prior to the hot stage of the Big Bang, a very short-lived earlier stage of ...
... continuously expanding state. According to recent measurements, observations and scientific evidence, this original state existed around 13.7 billion years ago, which is currently considered as the age of the known Universe. Prior to the hot stage of the Big Bang, a very short-lived earlier stage of ...
The ExOoS Mission - Extraterrestrial Octopus on Steroids
... λ and, taking into account the interferometry, with a resolution of 3 × 10−6 D after the James Webb Space Telescope (JWST), Transiting Exoplanet Survey Satellite (TESS) and Plato missions. Based on the data of these missions, OCTO-JWST-TPF-I will target 5 planets in the habitable zone of different s ...
... λ and, taking into account the interferometry, with a resolution of 3 × 10−6 D after the James Webb Space Telescope (JWST), Transiting Exoplanet Survey Satellite (TESS) and Plato missions. Based on the data of these missions, OCTO-JWST-TPF-I will target 5 planets in the habitable zone of different s ...
Recurring Cost ROM
... Traditional methods using UV lines in absorption to nearby stars to determine the deuterium abundance show large variations that can be explained by deuterium depletion onto dust and molecules. The limited range of the UV observations cannot address deuterium destruction via stars. Infrared spectros ...
... Traditional methods using UV lines in absorption to nearby stars to determine the deuterium abundance show large variations that can be explained by deuterium depletion onto dust and molecules. The limited range of the UV observations cannot address deuterium destruction via stars. Infrared spectros ...
Question 2 (7-1 thru 7-4 PPT Questions)
... 3. Newton’s reformulation of Kepler’s third law allows us to calculate the Sun’s mass. ...
... 3. Newton’s reformulation of Kepler’s third law allows us to calculate the Sun’s mass. ...
society journal - Auckland Astronomical Society
... Earth’s atmosphere and magnetic fields are usually adequate to protect us from these, but not completely during big events. The 1989 Montreal blackout, which was caused by solar activity, is the most recent example covered in this film. It left 6 million people in Quebec without power for 9 hours. T ...
... Earth’s atmosphere and magnetic fields are usually adequate to protect us from these, but not completely during big events. The 1989 Montreal blackout, which was caused by solar activity, is the most recent example covered in this film. It left 6 million people in Quebec without power for 9 hours. T ...
Integrative Studies 410 Our Place in the Universe
... • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
... • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
PowerPoint. - teachearthscience.org
... This unit is very convenient for measuring distances in our solar system. For example, the average distance between the sun and Venus is ~0.7 AU. The average distance between the sun and Pluto is ~39.44 AU. We can see that the orbit of Pluto is fairly eccentric in that its orbit carries it as close ...
... This unit is very convenient for measuring distances in our solar system. For example, the average distance between the sun and Venus is ~0.7 AU. The average distance between the sun and Pluto is ~39.44 AU. We can see that the orbit of Pluto is fairly eccentric in that its orbit carries it as close ...
Space Interferometry Mission
The Space Interferometry Mission, or SIM, also known as SIM Lite (formerly known as SIM PlanetQuest), was a planned space telescope developed by the U.S. National Aeronautics and Space Administration (NASA), in conjunction with contractor Northrop Grumman. One of the main goals of the mission was the hunt for Earth-sized planets orbiting in the habitable zones of nearby stars other than the Sun. SIM was postponed several times and finally cancelled in 2010.In addition to hunting for extrasolar planets, SIM would have helped astronomers construct a map of the Milky Way galaxy. Other important tasks would have included collecting data to help pinpoint stellar masses for specific types of stars, assisting in the determination of the spatial distribution of dark matter in the Milky Way and in the Local Group of galaxies and using the gravitational microlensing effect to measure the mass of stars.The spacecraft would have used optical interferometry to accomplish these and other scientific goals. This technique collects light with multiple mirrors (in SIM's case, two) which is combined to make an interference pattern which can be very precisely measured.The initial contracts for SIM Lite were awarded in 1998, totaling US$200 million. Work on the SIM project required scientists and engineers to move through eight specific new technology milestones, and by November 2006, all eight had been completed.SIM Lite was originally scheduled for a 2005 launch, aboard an Evolved Expendable Launch Vehicle (EELV). As a result of continued budget cuts, the launch date has been pushed back at least five times. NASA has set a preliminary launch date for 2015 and U.S. federal budget documents confirm that a launch date is expected ""no earlier"" than 2015. The budget cuts to SIM Lite are expected to continue through FY 2010. As of February 2007, many of the engineers working on the SIM program had moved on to other areas and projects, and NASA directed the project to allocate its resources toward engineering risk reduction. However, the preliminary budget for NASA for 2008 included zero dollars for SIM.In December 2007, the Congress restored funding for fiscal year 2008 as part of an omnibus appropriations bill which the President later signed. At the same time the Congress directed NASA to move the mission forward to the development phase. In 2009 the project continued its risk reduction work while waiting for the findings and recommendations of the Astronomy and Astrophysics Decadal Survey, Astro2010, performed by the National Academy of Sciences, which would determine the project's future.On 13 August 2010, the Astro2010 Decadal Report was released and did not recommend that NASA continue the development of the SIM Lite Astrometric Observatory. This prompted NASA Astronomy and Physics Director, Jon Morse, to issue a letter on 24 September 2010 to the SIM Lite project manager, informing him that NASA was discontinuing its sponsorship of the SIM Lite mission and directing the project to discontinue Phase B activities immediately or as soon as practical. Accordingly, all SIM Lite activities were closed down by the end of calendar year 2010.