Dark Energy and Dark Matter - Appalachian State University
... • Fermi Gamma-ray Space Telescope • Gamma rays are produced by colliding dark matter particles • Fermi was launched four years ago to detect collisions • Not enough data to prove anything yet ...
... • Fermi Gamma-ray Space Telescope • Gamma rays are produced by colliding dark matter particles • Fermi was launched four years ago to detect collisions • Not enough data to prove anything yet ...
COURSE CURRICULUM MAP
... Gravitational fields Intertial & gravitational mass Project Astrophysics Understand contributions of Kepler, Newton, Brahe, et al Relate Kepler’s laws of planetary motion to Newton’s law of universal gravitation Describe gravitational & orbital relationships of Planets Calculate the periods and spee ...
... Gravitational fields Intertial & gravitational mass Project Astrophysics Understand contributions of Kepler, Newton, Brahe, et al Relate Kepler’s laws of planetary motion to Newton’s law of universal gravitation Describe gravitational & orbital relationships of Planets Calculate the periods and spee ...
Lecture 2 - University of Washington
... equal to the abolute value of its potential energy. That is, stars with positive total energy are not bound to the system. In order for a star to escape from from the gravitational field represented by Φ, it is necessary that its speed be greater than ve. This can be used to get the local Φ of the g ...
... equal to the abolute value of its potential energy. That is, stars with positive total energy are not bound to the system. In order for a star to escape from from the gravitational field represented by Φ, it is necessary that its speed be greater than ve. This can be used to get the local Φ of the g ...
GAIA A Stereoscopic Census of our Galaxy
... – ~1600 Earth-crossers >1 km predicted (100 currently known) – detection limit: 260–590 m at 1 AU, depending on albedo ...
... – ~1600 Earth-crossers >1 km predicted (100 currently known) – detection limit: 260–590 m at 1 AU, depending on albedo ...
Diffuse light in a cluster z=2
... • Red : Stars are stripped early and then evolve passively towards red color! ...
... • Red : Stars are stripped early and then evolve passively towards red color! ...
Sin título de diapositiva - Universitat de Barcelona
... The GAIA mission, the next ESA Cornerstone 6 (launch 2010- 2012), will create a precise three dimensional map of about one billion stars throughout our Galaxy and beyond. To reach the scientific goals, that is to quantify the dynamical, chemical and star formation evolution of the Milky Way, it is c ...
... The GAIA mission, the next ESA Cornerstone 6 (launch 2010- 2012), will create a precise three dimensional map of about one billion stars throughout our Galaxy and beyond. To reach the scientific goals, that is to quantify the dynamical, chemical and star formation evolution of the Milky Way, it is c ...
11 Chapter
... • Echolocation is the process of locating objects by emitting sounds and detecting the sound waves that reflect back. • Sonar is a system that uses the reflection of underwater sound waves to detect objects. • Reflected ultrasonic waves are used to examine different body parts. ...
... • Echolocation is the process of locating objects by emitting sounds and detecting the sound waves that reflect back. • Sonar is a system that uses the reflection of underwater sound waves to detect objects. • Reflected ultrasonic waves are used to examine different body parts. ...
ppt
... – Spectrophotometry in the SDSS galaxies have been improved by a factor of 5 for the repeated observations. – Modeling of QSO continuum and line kinematics. – We demonstrate the importance of sampling the full probability distribution of parameters in the stellar population synthesis modeling of gal ...
... – Spectrophotometry in the SDSS galaxies have been improved by a factor of 5 for the repeated observations. – Modeling of QSO continuum and line kinematics. – We demonstrate the importance of sampling the full probability distribution of parameters in the stellar population synthesis modeling of gal ...
Ay122a&Fall&2015+16& Background&subtrac9on,&calibra9on,& analysis& &
... • Fringes&due&to&OH&sky&emission&lines& • Real&angular&structure&in&the&OH&airglow& For&many&applica9ons,&1%&flat&fielding&uncertainty&is&quite&adequate,&and&is¬&a& dominant&source&of&error&for&photometry.& ...
... • Fringes&due&to&OH&sky&emission&lines& • Real&angular&structure&in&the&OH&airglow& For&many&applica9ons,&1%&flat&fielding&uncertainty&is&quite&adequate,&and&is¬&a& dominant&source&of&error&for&photometry.& ...
Dark Energy
... Dark Matter: The internal kinematics of galaxies like the Milky Way indicate more mass than we see in stars and gas. Furthermore, all measures of mass exceed the baryonic inventory. We don’t know what the dark matter is… axions, LSP…? Dark Energy: The Universe has recently entered a renewed phase of ...
... Dark Matter: The internal kinematics of galaxies like the Milky Way indicate more mass than we see in stars and gas. Furthermore, all measures of mass exceed the baryonic inventory. We don’t know what the dark matter is… axions, LSP…? Dark Energy: The Universe has recently entered a renewed phase of ...
Magnetism - vandenmiller
... To see more of her head in the mirror, she a) should hold the mirror ...
... To see more of her head in the mirror, she a) should hold the mirror ...
Young Galaxies Grow - Astronomical Society of the Pacific
... of matter. Their brightest component is a flat, dense disk, where most of their stars are formed along spiral arms. Our Milky Way is a spiral galaxy. Such disk galaxies mostly assembled in earlier epochs, but they continue to form stars today from remaining gas within the spiral arms. They are also ...
... of matter. Their brightest component is a flat, dense disk, where most of their stars are formed along spiral arms. Our Milky Way is a spiral galaxy. Such disk galaxies mostly assembled in earlier epochs, but they continue to form stars today from remaining gas within the spiral arms. They are also ...
Chapter 22 Neutron Stars and Black Holes
... Discovery 22-1: Gravity Waves: A New Window on the Universe General relativity predicts that orbiting objects should lose energy by emitting gravitational radiation. The amount of energy is tiny, and these waves have not yet been observed directly. However, a neutron-star binary system has been obs ...
... Discovery 22-1: Gravity Waves: A New Window on the Universe General relativity predicts that orbiting objects should lose energy by emitting gravitational radiation. The amount of energy is tiny, and these waves have not yet been observed directly. However, a neutron-star binary system has been obs ...
Some observed properties of Dark Matter: a progress report on an
... • How do planetary systems form? • To date many planets have been detected indirectly • Direct detection: – Mass, radius, temperature, composition – ELT will provide large samples of mature giant planets in reflected light – Earth-like planets may be within reach ...
... • How do planetary systems form? • To date many planets have been detected indirectly • Direct detection: – Mass, radius, temperature, composition – ELT will provide large samples of mature giant planets in reflected light – Earth-like planets may be within reach ...
Powerpoint for today
... Escape velocity from Earth's surface is 11 km/sec. If Earth were crushed down to 1 cm size, escape velocity would be speed of light. Then nothing, including light, could escape Earth. This special radius, for a particular object, is called the Schwarzschild Radius, RS. RS M. ...
... Escape velocity from Earth's surface is 11 km/sec. If Earth were crushed down to 1 cm size, escape velocity would be speed of light. Then nothing, including light, could escape Earth. This special radius, for a particular object, is called the Schwarzschild Radius, RS. RS M. ...
