Dark Matter In The 21st Century
... Three Possibilities 1) Galaxies are mostly made up of very non-luminous objects holes, neutron stars, white dwarf stars, large planets, etc.) 2) Gravity does not work in galaxies and clusters the way in does on Earth or in our Solar System ...
... Three Possibilities 1) Galaxies are mostly made up of very non-luminous objects holes, neutron stars, white dwarf stars, large planets, etc.) 2) Gravity does not work in galaxies and clusters the way in does on Earth or in our Solar System ...
Moro_Martin`s Talk - CIERA
... protostar and begins to flatten into a circumstellar disk. Some of this dust and gas accretes onto the protostar adding to its mass. ...
... protostar and begins to flatten into a circumstellar disk. Some of this dust and gas accretes onto the protostar adding to its mass. ...
Larger, high-res file, best for printing
... five-year strategic plan, we are considering the future and how together we can move the Society forward to new opportunities to serve our common goals. In fact, this year’s annual meeting (September 13–16 at the Westin SFO in Millbrae, California, with a weekend of education workshops September 12– ...
... five-year strategic plan, we are considering the future and how together we can move the Society forward to new opportunities to serve our common goals. In fact, this year’s annual meeting (September 13–16 at the Westin SFO in Millbrae, California, with a weekend of education workshops September 12– ...
Is Pluto Real - Jesseca Rough
... presented my topic outside my mother’s house so the kids could sit on the grass in the shade and since many of the kids live in the neighborhood, it was easier for their parents to pick them up afterwards. Three parents chose to stay and watch. I timed the presentation to be about 30 minutes beforeh ...
... presented my topic outside my mother’s house so the kids could sit on the grass in the shade and since many of the kids live in the neighborhood, it was easier for their parents to pick them up afterwards. Three parents chose to stay and watch. I timed the presentation to be about 30 minutes beforeh ...
Kepler`s Search for Exoplanets
... Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s just a matter of time before we find ano ...
... Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s just a matter of time before we find ano ...
Slide 1
... stars are travelling in highly elliptical orbits, and so are going slower than would be expected for a circular orbit. So, the outer stars are moving, not because of a low amount of gravity (hence little dark matter), but rather because they are in highly elliptical orbits, and slow down as a conseq ...
... stars are travelling in highly elliptical orbits, and so are going slower than would be expected for a circular orbit. So, the outer stars are moving, not because of a low amount of gravity (hence little dark matter), but rather because they are in highly elliptical orbits, and slow down as a conseq ...
Chapter10- Other Planetary Systems -pptx
... special way when a star with planets passes in front of another star. • Features in Dust Disks: Gaps, waves, or ripples in disks of dusty gas around stars can indicate presence of planets. ...
... special way when a star with planets passes in front of another star. • Features in Dust Disks: Gaps, waves, or ripples in disks of dusty gas around stars can indicate presence of planets. ...
IMAX - Teacher Guide - Hidden Universe 3D
... – operate. But orbital telescopes, while without the handicap of atmosphere, are difficult and costly to launch and operate – the initial difficulties with the Hubble demonstrated that. Applying for observing time on the Hubble Space Telescope is a highly competitive process, and there can be a long ...
... – operate. But orbital telescopes, while without the handicap of atmosphere, are difficult and costly to launch and operate – the initial difficulties with the Hubble demonstrated that. Applying for observing time on the Hubble Space Telescope is a highly competitive process, and there can be a long ...
2 Galaxy morphology and classification
... The spheroid is the smooth elliptical distribution of stars found in elliptical galaxies. It is composed primarily of an old, metal-poor, population of stars typically having ages „ 12 Gyr or more. The spheroid is thought to be among the first stellar components to form. The stellar halo is a di↵use ...
... The spheroid is the smooth elliptical distribution of stars found in elliptical galaxies. It is composed primarily of an old, metal-poor, population of stars typically having ages „ 12 Gyr or more. The spheroid is thought to be among the first stellar components to form. The stellar halo is a di↵use ...
The Focal Point - Atlanta Astronomy Club
... oceans of liquid water, which Titan lacks. The resulting chemistry in Earth's warm environment ultimately led to the origin of life, whereas on Titan we find only a frozen echo of early Earth: methane, nitrogen, and a suite of small organic molecules. Our planet's carefully balanced, warm global cli ...
... oceans of liquid water, which Titan lacks. The resulting chemistry in Earth's warm environment ultimately led to the origin of life, whereas on Titan we find only a frozen echo of early Earth: methane, nitrogen, and a suite of small organic molecules. Our planet's carefully balanced, warm global cli ...
PDF
... With its starlight suppression system, THEIA will make the most sensitive inventory and detailed images of protoplanetary and debris disks possible with any planned or existing telescope. THEIA will trace the formation and rearrangement of small body belts, sense otherwise undetectable planets via d ...
... With its starlight suppression system, THEIA will make the most sensitive inventory and detailed images of protoplanetary and debris disks possible with any planned or existing telescope. THEIA will trace the formation and rearrangement of small body belts, sense otherwise undetectable planets via d ...
1 Name: Date: PARALLAX EXERCISE1 The goal of this
... only 0.75" (arcseconds), which is only 1/4800 of a degree. Using such small angles in the formula we used above is somewhat difficult. Thus, astronomers have created a special unit, the parsec, for working with the distances to the stars. A parsec is the distance at which a star will have a parallax ...
... only 0.75" (arcseconds), which is only 1/4800 of a degree. Using such small angles in the formula we used above is somewhat difficult. Thus, astronomers have created a special unit, the parsec, for working with the distances to the stars. A parsec is the distance at which a star will have a parallax ...
PLANETS
... A planet in a circular orbit around star with semi-major axis a Assume that the star and planet both rotate around the centre of mass with an angular velocity: ...
... A planet in a circular orbit around star with semi-major axis a Assume that the star and planet both rotate around the centre of mass with an angular velocity: ...
The Milky Way: Spiral galaxies:
... absorption. Note that spin flips are classically “forbidden”: on average, a single hydrogen atom will take 107 years to decay! The probability of an absorption is even rarer. •! HI gas mass is directly proportional to 21 cm line intensity •! HI disk is much more extended than optical light, typicall ...
... absorption. Note that spin flips are classically “forbidden”: on average, a single hydrogen atom will take 107 years to decay! The probability of an absorption is even rarer. •! HI gas mass is directly proportional to 21 cm line intensity •! HI disk is much more extended than optical light, typicall ...
The Effects of Atmospheric Turbulence on Simulated
... purpose of Kite was to test laser metrology gauges in simulated space conditions. Laser metrology gauges monitor internal and external optical path distances required for astrometric measurements, using beam launchers to direct a metrology beam at a target and collect the returning laser light. The ...
... purpose of Kite was to test laser metrology gauges in simulated space conditions. Laser metrology gauges monitor internal and external optical path distances required for astrometric measurements, using beam launchers to direct a metrology beam at a target and collect the returning laser light. The ...
Communication with Extraterrestrial Intelligence (CETI)
... and to image three giant-planet point-sources orbiting at distances of 24, 38, and 68 AU, far from the star. The reflex motions of a star that are induced by the planetary orbit are greater and easier to observe if the star mass is small. What we haven’t found thus far is a planet like the Earth orbi ...
... and to image three giant-planet point-sources orbiting at distances of 24, 38, and 68 AU, far from the star. The reflex motions of a star that are induced by the planetary orbit are greater and easier to observe if the star mass is small. What we haven’t found thus far is a planet like the Earth orbi ...
Using the Radial Velocity to Search for Orbiting Planets Around Mira
... orbiting perpendicular to the plane of the sky as well. Next, a weighted average of the maser emissions were calculated from the one hour interval and predicted to be the velocity centroid during that given time period. This process was repeated multiple times starting in 1970s until the most recent ...
... orbiting perpendicular to the plane of the sky as well. Next, a weighted average of the maser emissions were calculated from the one hour interval and predicted to be the velocity centroid during that given time period. This process was repeated multiple times starting in 1970s until the most recent ...
Habitability and Life Parameters in our Solar System
... HE whole spacetime i.e. cosmoverse is divided into various universes. Every universe is traveling with habitability in this cosmoverse due to its own motion and gravitational attraction towards the other universes like every planet in our Solar system. Planets are in motion due to their main source ...
... HE whole spacetime i.e. cosmoverse is divided into various universes. Every universe is traveling with habitability in this cosmoverse due to its own motion and gravitational attraction towards the other universes like every planet in our Solar system. Planets are in motion due to their main source ...
Slide 1
... Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two stars can be measured usi ...
... Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two stars can be measured usi ...
17_LectureOutline
... Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two stars can be measured usi ...
... Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two stars can be measured usi ...
Galaxy Notes File
... galaxies are grouped in clusters ranging in size from a few dozens to thousands of galaxies. The Coma Cluster, shown at right, is 300 million light years from the Milky Way and contains more than 1,000 (and possibly as many as 10,000) galaxies. The Milky Way is a member of a small cluster called the ...
... galaxies are grouped in clusters ranging in size from a few dozens to thousands of galaxies. The Coma Cluster, shown at right, is 300 million light years from the Milky Way and contains more than 1,000 (and possibly as many as 10,000) galaxies. The Milky Way is a member of a small cluster called the ...
Galaxies, stars and planets
... many people on the Earth can't be used. The Universe is around 14 billion years old and contains materials with a range of properties that far exceeds anything that can be replicated in laboratories on the Earth. Temperatures range from close to absolute zero (−273.15 ºC) in dense clouds of gas and ...
... many people on the Earth can't be used. The Universe is around 14 billion years old and contains materials with a range of properties that far exceeds anything that can be replicated in laboratories on the Earth. Temperatures range from close to absolute zero (−273.15 ºC) in dense clouds of gas and ...
Part 1
... Quick Time™a nd a TIFF ( Uncomp res sed) deco mpre ssor are n eede d to s ee this picture . ...
... Quick Time™a nd a TIFF ( Uncomp res sed) deco mpre ssor are n eede d to s ee this picture . ...
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.