Exploring The Universe
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
7a Properties of Stars.pptx
... • Measured in light-‐years – distance light travels in one year (9.5 x 1012 or 9.5 trillion kilometers) ...
... • Measured in light-‐years – distance light travels in one year (9.5 x 1012 or 9.5 trillion kilometers) ...
Document
... • High Mass stars often times explode! • This spreads all of the elements Hydrogen through Iron (which makes up our planets and other new stars) and forms all elements after Iron (up to element 92). ...
... • High Mass stars often times explode! • This spreads all of the elements Hydrogen through Iron (which makes up our planets and other new stars) and forms all elements after Iron (up to element 92). ...
Slide 1
... position, decides whether the burst merits a spacecraft slew and, if so, sends the position to the spacecraft. In order to study bursts with a variety of intensities, durations, and temporal structures, the BAT must have a large dynamic range and trigger capabilities. The BAT uses a twodimensional c ...
... position, decides whether the burst merits a spacecraft slew and, if so, sends the position to the spacecraft. In order to study bursts with a variety of intensities, durations, and temporal structures, the BAT must have a large dynamic range and trigger capabilities. The BAT uses a twodimensional c ...
Warm-Up Monday, July 23, 2012
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
Slide 1
... This Hubble Deep Field view shows some extremely distant galaxies. The most distant appear irregular, supporting the theory of galaxy formation by merger. ...
... This Hubble Deep Field view shows some extremely distant galaxies. The most distant appear irregular, supporting the theory of galaxy formation by merger. ...
Lecture 17: Black Holes
... caused stars at high redshift to collapse to black holes, while present stars might be spared the same fate because of the lower densities and velocity dispersions in dark matter halos. The black holes formed at high redshift might account for some LMC microlensing events. • The model is so crazy th ...
... caused stars at high redshift to collapse to black holes, while present stars might be spared the same fate because of the lower densities and velocity dispersions in dark matter halos. The black holes formed at high redshift might account for some LMC microlensing events. • The model is so crazy th ...
Slide 1
... •This argues for triaxial objects – many giant E’s have not relaxed enough to develop an axis of symmetry •equilibrium triaxial systems could exist with slow rotation about the minor axis ...
... •This argues for triaxial objects – many giant E’s have not relaxed enough to develop an axis of symmetry •equilibrium triaxial systems could exist with slow rotation about the minor axis ...
Astronomy (stars, galaxies and the Universe)
... stars and to understand how stars change over time As the absolute magnitude of main sequence stars increases, the temperature increase as well ...
... stars and to understand how stars change over time As the absolute magnitude of main sequence stars increases, the temperature increase as well ...
Northern and Southern Hemisphere Star Chart
... Although the vast majority of stars we see in the night sky are brighter than the Sun, actually small and dim M type stars called red dwarfs (stars physically smaller than our Sun are classed as dwarf stars) seem to be the most common stars in space, at least in our part of the Milky Way galaxy. Of ...
... Although the vast majority of stars we see in the night sky are brighter than the Sun, actually small and dim M type stars called red dwarfs (stars physically smaller than our Sun are classed as dwarf stars) seem to be the most common stars in space, at least in our part of the Milky Way galaxy. Of ...
Implications of the Search and Discovery
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
Implications of the Search and Discovery of Life in the Universe
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
What are your ideas about The Universe? - Harvard
... Many people, adults and students alike, are familiar with the names of objects in space, but have an incomplete mental model of WHERE those objects are in space, their relative size and scale, and how they fit into the cosmic scheme of things. Understanding the sizes and distances of celestial objec ...
... Many people, adults and students alike, are familiar with the names of objects in space, but have an incomplete mental model of WHERE those objects are in space, their relative size and scale, and how they fit into the cosmic scheme of things. Understanding the sizes and distances of celestial objec ...
Document
... falls into another neutron star or black hole. The resulting explosion sends out particles and radiation all over the spectrum They are the most luminous things in the universe In May a GRB was seen at redshift 8. It is the farthest thing ever seen and occurred only 400 million years after the big b ...
... falls into another neutron star or black hole. The resulting explosion sends out particles and radiation all over the spectrum They are the most luminous things in the universe In May a GRB was seen at redshift 8. It is the farthest thing ever seen and occurred only 400 million years after the big b ...
Messier Galaxies of #202541
... 4. Know the field of view of your finderscope and eyepieces. This will aid in triangulation and sweeping away from the guide stars to the target galaxy. When looking through your instruments, always know which ways are north and west. In most finderscopes, refractors, and reflectors, the image in t ...
... 4. Know the field of view of your finderscope and eyepieces. This will aid in triangulation and sweeping away from the guide stars to the target galaxy. When looking through your instruments, always know which ways are north and west. In most finderscopes, refractors, and reflectors, the image in t ...
The First Stars - Amazon Web Services
... In the century that followed, astronomers measured the masses of many stars, typically by using the orbits in binary systems, and confirmed Eddington’s reasoning. The smaller balls of gas make the planets. The massive stars explode, after exhausting their nuclear fuel, because their masses are so la ...
... In the century that followed, astronomers measured the masses of many stars, typically by using the orbits in binary systems, and confirmed Eddington’s reasoning. The smaller balls of gas make the planets. The massive stars explode, after exhausting their nuclear fuel, because their masses are so la ...
AWG recommendation on Cosmic Vision
... 2.1.1 Dark Energy The totally unexpected discovery of a presently accelerating Universe leaves us with the quest for the driving force behind it. Termed “Dark Energy”, this component of the Universe currently has no explanation in terms of a physical model and is presently the largest challenge for ...
... 2.1.1 Dark Energy The totally unexpected discovery of a presently accelerating Universe leaves us with the quest for the driving force behind it. Termed “Dark Energy”, this component of the Universe currently has no explanation in terms of a physical model and is presently the largest challenge for ...
Mass Segregation in Globular Clusters
... Understanding the dynamics of globular cluster evolution has application beyond our own galaxy. In this remarkable Hubble image, thousands of stars outside our galaxy are seen in the halo of our galactic neighbor, M31 in Andromeda, some 2 million light-years distant. Included among them is one of An ...
... Understanding the dynamics of globular cluster evolution has application beyond our own galaxy. In this remarkable Hubble image, thousands of stars outside our galaxy are seen in the halo of our galactic neighbor, M31 in Andromeda, some 2 million light-years distant. Included among them is one of An ...
The Origin of the Solar System
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
Improving the Gaia planet catch by combining the astrometry with
... Astrometry is a promising technique for exoplanet research. It allows us to determine all the orbit parameters and the accurate mass of the planet. Gaia will be the first space mission to reach astrometric precision capable to detect planetary companions around stars brighter than 15th mag. Astromet ...
... Astrometry is a promising technique for exoplanet research. It allows us to determine all the orbit parameters and the accurate mass of the planet. Gaia will be the first space mission to reach astrometric precision capable to detect planetary companions around stars brighter than 15th mag. Astromet ...
Our Galaxy, The Milky Way
... Stellar Kinematics Near the Sun • Velocity dispersion of stars increases with their mean age: the evidence for a stochastic acceleration due to GMC and spiral arm encounters in a differentially rotating Galaxy • The shape of the velocity ellipsoid also changes: older stars rotate more slowly; the t ...
... Stellar Kinematics Near the Sun • Velocity dispersion of stars increases with their mean age: the evidence for a stochastic acceleration due to GMC and spiral arm encounters in a differentially rotating Galaxy • The shape of the velocity ellipsoid also changes: older stars rotate more slowly; the t ...
Chapter 9 / Adobe Acrobat Document
... 6. The universe began expanding quickly when it suddenly expanded from about 10–48 cm to about 103 cm at about 10–35 s before returning to its original rate of expansion; overall, it increased in size about 1075 times (1020 cm/10–55 cm) from 10–45 s to 10–5 s. 7. The distance-redshift relationship d ...
... 6. The universe began expanding quickly when it suddenly expanded from about 10–48 cm to about 103 cm at about 10–35 s before returning to its original rate of expansion; overall, it increased in size about 1075 times (1020 cm/10–55 cm) from 10–45 s to 10–5 s. 7. The distance-redshift relationship d ...
May 2013 - Otterbein
... Where does the Energy come from? • Anaxagoras (500-428 BC): Sun a large hot rock – No, it would cool down too fast • Combustion? – No, it could last a few thousand years ...
... Where does the Energy come from? • Anaxagoras (500-428 BC): Sun a large hot rock – No, it would cool down too fast • Combustion? – No, it could last a few thousand years ...
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.