Expanding Universe and Big Bang
... successive waves have a shorter and shorter distance to travel before reaching you. So you observe more than one wave per second. Similarly, if the source is moving away from you, each successive wave has further to travel and so you observe a lower frequency (less than one wave per second). So ther ...
... successive waves have a shorter and shorter distance to travel before reaching you. So you observe more than one wave per second. Similarly, if the source is moving away from you, each successive wave has further to travel and so you observe a lower frequency (less than one wave per second). So ther ...
ppt file - Particle Theory
... The PVLAS results are intriguing but very odd The experimenters had hoped to see the QED effect (“light-by-light” scattering), but their sensitivity was not good enough by many orders of magnitude Their value of ga is ostensibly excluded already by 4 orders of magnitude, by CAST, and stellar evol ...
... The PVLAS results are intriguing but very odd The experimenters had hoped to see the QED effect (“light-by-light” scattering), but their sensitivity was not good enough by many orders of magnitude Their value of ga is ostensibly excluded already by 4 orders of magnitude, by CAST, and stellar evol ...
Lesson 55 – The Structure of the Universe - science
... actually two types of Cepheid variable but we will just consider one type here). The period-luminosity relation means that if you can measure the period of a Cepheid variable you can find its luminosity. Knowing how bright the star really is and then measuring how bright it appears to be will then g ...
... actually two types of Cepheid variable but we will just consider one type here). The period-luminosity relation means that if you can measure the period of a Cepheid variable you can find its luminosity. Knowing how bright the star really is and then measuring how bright it appears to be will then g ...
An ultra-deep field observatory at the lunar south pole
... darkest overhead, and we can look there uninterrupted at the same unchanging patch of sky for the years needed for the study. Thus a specialized telescope for this work could be fixed in place looking straight up. If desired, very high resolution images of the same patch could be made with multiple ...
... darkest overhead, and we can look there uninterrupted at the same unchanging patch of sky for the years needed for the study. Thus a specialized telescope for this work could be fixed in place looking straight up. If desired, very high resolution images of the same patch could be made with multiple ...
Document
... of JWST. It doesn’t look likely that WFIRST will be launched less than 5 years after Euclid. • Europe has a really superb opportunity to lead the way in addressing astronomy’s biggest mystery . ...
... of JWST. It doesn’t look likely that WFIRST will be launched less than 5 years after Euclid. • Europe has a really superb opportunity to lead the way in addressing astronomy’s biggest mystery . ...
ASTR2050 Spring 2005 •
... Fundamental principles of “light” gathering and angular resolution are the same! But, there are ...
... Fundamental principles of “light” gathering and angular resolution are the same! But, there are ...
Searching for Dwarf Galaxies and Population III Star
... allow a deep image of a substantial fraction of the edge of the bubble. The actual length scale over which these sources are discovered will reveal or set a lower limit on the size of the local bubble. The exposure time of 4 hours will allow detections in the range of ~6 x 10-19 erg/s/cm2. 2. If we ...
... allow a deep image of a substantial fraction of the edge of the bubble. The actual length scale over which these sources are discovered will reveal or set a lower limit on the size of the local bubble. The exposure time of 4 hours will allow detections in the range of ~6 x 10-19 erg/s/cm2. 2. If we ...
Telescopes
... • At one time, Canada had two of the three largest telescopes in the world! • When the Dominion Astrophysical Observatory opened in 1918, its telescope (usually said to be a 72" (mirror diameter) telescope but actually a 73" telescope) was briefly the largest in the world, until the 100" telescope o ...
... • At one time, Canada had two of the three largest telescopes in the world! • When the Dominion Astrophysical Observatory opened in 1918, its telescope (usually said to be a 72" (mirror diameter) telescope but actually a 73" telescope) was briefly the largest in the world, until the 100" telescope o ...
dark matter. - Gordon State College
... must occur. Fusion only occurs when matter is very hot and very dense. • Scientists predict that if the Big Bang occurred, there would not have been enough time to form any heavy elements due to the rapidly expanding universe; only hydrogen and helium could have been formed. • Strong evidence for th ...
... must occur. Fusion only occurs when matter is very hot and very dense. • Scientists predict that if the Big Bang occurred, there would not have been enough time to form any heavy elements due to the rapidly expanding universe; only hydrogen and helium could have been formed. • Strong evidence for th ...
Intelligent life in cosmology
... intelligent species, if the universe were closed and always decelerating – intelligent life would be forced by the laws of physics to use resources at just the right rate to survive to the very end of time. And even more intelligent species could so survive if the universe were to have a period of a ...
... intelligent species, if the universe were closed and always decelerating – intelligent life would be forced by the laws of physics to use resources at just the right rate to survive to the very end of time. And even more intelligent species could so survive if the universe were to have a period of a ...
Prop 17 - WM Keck Observatory
... be pointing the telescope to roughly eight different azimuth positions (separated by about 45 degrees) and at two different telescope elevations (~ 60 & 80 degrees) for each azimuth. Thus, we will be using about 16 relatively bright stars well distributed on the sky. On K1 as such there is no possib ...
... be pointing the telescope to roughly eight different azimuth positions (separated by about 45 degrees) and at two different telescope elevations (~ 60 & 80 degrees) for each azimuth. Thus, we will be using about 16 relatively bright stars well distributed on the sky. On K1 as such there is no possib ...
IMAX - Teacher Guide - Hidden Universe 3D
... space images from these powerful telescopes and work to further human knowledge of the universe. Each has a specialised approach to observation, Whitmore using optical instruments and Poole a telescope that produces a very different view of the universe. After introducing Dr Whitmore, the documentar ...
... space images from these powerful telescopes and work to further human knowledge of the universe. Each has a specialised approach to observation, Whitmore using optical instruments and Poole a telescope that produces a very different view of the universe. After introducing Dr Whitmore, the documentar ...
The Cosmological Distance Ladder
... and to reconcile the systematic differences in distance estimates from different methods. With an objective weighting scheme based on quoted errors, and with higher weight for purely geometrical distance methods, I concluded that there were systematic errors in the supernova method (too high distanc ...
... and to reconcile the systematic differences in distance estimates from different methods. With an objective weighting scheme based on quoted errors, and with higher weight for purely geometrical distance methods, I concluded that there were systematic errors in the supernova method (too high distanc ...
Word doc - GDN - University of Gloucestershire
... Laboratories, of what came to be known as the Cosmic Microwave Background (http://cfpa.berkeley.edu/darkmat/cmb.html). The discovery of the Cosmic Microwave Background coincided with the work of some theoretical physicists who showed that if the Universe began with a hot Big Bang, then the Universe ...
... Laboratories, of what came to be known as the Cosmic Microwave Background (http://cfpa.berkeley.edu/darkmat/cmb.html). The discovery of the Cosmic Microwave Background coincided with the work of some theoretical physicists who showed that if the Universe began with a hot Big Bang, then the Universe ...
File - Philosophy, Theology, History, Science, Big
... the best possible time for an advanced life habitable planet to form would be when uranium and thorium reach their peak abundances. Recent research reveals that the peak production of these isotopes was 4.57 billion years ago; that age matches the timing of the Earth’s formation 4.5662 plus or minus ...
... the best possible time for an advanced life habitable planet to form would be when uranium and thorium reach their peak abundances. Recent research reveals that the peak production of these isotopes was 4.57 billion years ago; that age matches the timing of the Earth’s formation 4.5662 plus or minus ...
course - HSCPhysics
... ESL) through class discussion, generate a list of scientific models for the origin of the universe construct a timeline of cosmological discoveries from 1900-1930s including work of Friedmann1 and Hubble from sources provided by the teacher using supplied data2 or computer simulation3, reprodu ...
... ESL) through class discussion, generate a list of scientific models for the origin of the universe construct a timeline of cosmological discoveries from 1900-1930s including work of Friedmann1 and Hubble from sources provided by the teacher using supplied data2 or computer simulation3, reprodu ...
Why do we Still Believe in Newton`s Law? Facts, Myths and Methods
... Newtonian gravity and general relativity are correct on large scales. In fact, there is little or no direct evidence that conventional theories of gravity are correct on scales much larger than a parsec or so. Newtonian gravity works extremely well on scales of ∼ 1014 cm (the solar system). (...) It ...
... Newtonian gravity and general relativity are correct on large scales. In fact, there is little or no direct evidence that conventional theories of gravity are correct on scales much larger than a parsec or so. Newtonian gravity works extremely well on scales of ∼ 1014 cm (the solar system). (...) It ...
Cosmological Aspects of Nucleosynthesis
... More than 3 neutrino-families would have contributed to the mass density of ultrarelativistic particles. This would have speeded up the expansion in the radiationdominated universe. Neutrino would decouple at higher temperature and Helium would have been overproduced. Agreement with elementary parti ...
... More than 3 neutrino-families would have contributed to the mass density of ultrarelativistic particles. This would have speeded up the expansion in the radiationdominated universe. Neutrino would decouple at higher temperature and Helium would have been overproduced. Agreement with elementary parti ...
PDF - Amazing Space, STScI
... Peering into the crowded bulge of our Milky Way galaxy, Hubble looked farther than ever before to nab a group of planet candidates outside our solar system. Astronomers used Hubble to conduct a census of Jupiter-sized extrasolar planets residing in the bulge of our Milky Way galaxy. Looking at a nar ...
... Peering into the crowded bulge of our Milky Way galaxy, Hubble looked farther than ever before to nab a group of planet candidates outside our solar system. Astronomers used Hubble to conduct a census of Jupiter-sized extrasolar planets residing in the bulge of our Milky Way galaxy. Looking at a nar ...
Hubble Space Telescope`s
... Peering into the crowded bulge of our Milky Way galaxy, Hubble looked farther than ever before to nab a group of planet candidates outside our solar system. Astronomers used Hubble to conduct a census of Jupiter-sized extrasolar planets residing in the bulge of our Milky Way galaxy. Looking at a nar ...
... Peering into the crowded bulge of our Milky Way galaxy, Hubble looked farther than ever before to nab a group of planet candidates outside our solar system. Astronomers used Hubble to conduct a census of Jupiter-sized extrasolar planets residing in the bulge of our Milky Way galaxy. Looking at a nar ...
hanson.pdf
... representations. Implicit in our treatment was the question of causality: viewing astronomical objects at very large scales requires a number of assumptions about when we are actually seeing such objects due to the constant finite speed of light. No attempt was made to deal rigorously with animation ...
... representations. Implicit in our treatment was the question of causality: viewing astronomical objects at very large scales requires a number of assumptions about when we are actually seeing such objects due to the constant finite speed of light. No attempt was made to deal rigorously with animation ...
European Extremely Large Telescope (E-ELT) - DESY
... The radial velocity technique, which measures the induced Doppler shift of features in the spectrum of the parent star, can only find certain kinds of planets. With the current generation of telescopes, this technique is limited both by the precision and the stability of the velocity measurements: c ...
... The radial velocity technique, which measures the induced Doppler shift of features in the spectrum of the parent star, can only find certain kinds of planets. With the current generation of telescopes, this technique is limited both by the precision and the stability of the velocity measurements: c ...
Mid-IR Observation
... wave pattern at a few Hz, displacing the image of the object by typically ~20 arcsec on the detector. This allows the weak emission from the astronomical object to be detected differentially on top of the large thermal background. The mirror position is stabilized with fast guiding at one or both ch ...
... wave pattern at a few Hz, displacing the image of the object by typically ~20 arcsec on the detector. This allows the weak emission from the astronomical object to be detected differentially on top of the large thermal background. The mirror position is stabilized with fast guiding at one or both ch ...
Questions - Clever Teach
... Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...
... Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...