Oct - Seattle Astronomical Society
... The galaxy appears to be a merger, a “train wreck” of two or more galaxies crashing together. The crash is what produces the baby boom. Clouds of interstellar gas within the two galaxies press against one another and collapse to form stars, dozens to hundreds at a time. This isn’t the first time ast ...
... The galaxy appears to be a merger, a “train wreck” of two or more galaxies crashing together. The crash is what produces the baby boom. Clouds of interstellar gas within the two galaxies press against one another and collapse to form stars, dozens to hundreds at a time. This isn’t the first time ast ...
Make Your Own Star Bracelet
... cool stars. Much cooler than their bright blue-white cousins. Stars that are cooler than this type cannot be seen with eyes or optical telescopes. We must look for them by their heat, looking at their infrared radiation." "The next two beads tell us of two possible endings for stars." (pick up the ...
... cool stars. Much cooler than their bright blue-white cousins. Stars that are cooler than this type cannot be seen with eyes or optical telescopes. We must look for them by their heat, looking at their infrared radiation." "The next two beads tell us of two possible endings for stars." (pick up the ...
The Zodiac - Alchemical.org
... Capricorn (Capricornus), the Water Goat or "Goat-Fish" begins the "watery" portion of the Zodiac, three constellations associated with water, the Water Goat, the Water Bearer, and the Fishes. The ancient Babylonians saw the constellation as representing Ea, the fish-god who they also associated with ...
... Capricorn (Capricornus), the Water Goat or "Goat-Fish" begins the "watery" portion of the Zodiac, three constellations associated with water, the Water Goat, the Water Bearer, and the Fishes. The ancient Babylonians saw the constellation as representing Ea, the fish-god who they also associated with ...
LANL Cosmology Summer School Lectures, July 2010
... SDSS z~6 quasars => tailend of reionization and first (new) light? ...
... SDSS z~6 quasars => tailend of reionization and first (new) light? ...
N j
... distribution shape, e.g., often a Gaussian is used since in many cases the final posterior is also close to Gaussian. Can be very inefficient (and hence require a very large number of draws), especially if some model parameters are correlated or have posterior probability distributions with wide win ...
... distribution shape, e.g., often a Gaussian is used since in many cases the final posterior is also close to Gaussian. Can be very inefficient (and hence require a very large number of draws), especially if some model parameters are correlated or have posterior probability distributions with wide win ...
Telescopes
... for information about air turbulence. • A computer modifies the mirror configuration 1000’s of times each second to compensate for atmospheric problems. • Observations of the nearby double star Castor with and without adaptive optics. • The two stars are separated by less than one arc second. ...
... for information about air turbulence. • A computer modifies the mirror configuration 1000’s of times each second to compensate for atmospheric problems. • Observations of the nearby double star Castor with and without adaptive optics. • The two stars are separated by less than one arc second. ...
Chapter 12
... emission excite the gas and the gas glows They emit line radiation (hot, low pressure gas) but in size they are much smaller than the emission nebulae (HII regions) ...
... emission excite the gas and the gas glows They emit line radiation (hot, low pressure gas) but in size they are much smaller than the emission nebulae (HII regions) ...
Stellar Evolution Chapter 12
... b. Objects below this mass can only form in HI clouds. c. Objects below this mass are not hot enough to fuse normal hydrogen. d. They form too slowly and hot stars nearby clear the gas and dust quickly. e. Our telescopes do not have enough light gathering power to detect dim objects. ...
... b. Objects below this mass can only form in HI clouds. c. Objects below this mass are not hot enough to fuse normal hydrogen. d. They form too slowly and hot stars nearby clear the gas and dust quickly. e. Our telescopes do not have enough light gathering power to detect dim objects. ...
THE ORIGIN AND EVOLUTION OF PLANETARY NEBULAE
... With better telescope resolution, nebulae that are made up of stars (e.g., galaxies) were separated from those made up of gaseous material. PN were further distinguished from other galactic diffuse nebulae by that fact that PN have definite structures and are often associated with a central star. Th ...
... With better telescope resolution, nebulae that are made up of stars (e.g., galaxies) were separated from those made up of gaseous material. PN were further distinguished from other galactic diffuse nebulae by that fact that PN have definite structures and are often associated with a central star. Th ...
Optical Properties of Condensed Matters
... into colourless hosts is employed extensively in the crystals used for solid state lasers. A typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately in ...
... into colourless hosts is employed extensively in the crystals used for solid state lasers. A typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately in ...
Lesson 9 – De Broglie Analysis
... fast moving electrons and slower moving electrons? 2. How would the diffraction patterns compare for a particle with greater mass than an electron (for example a neutron) if they were travelling at the same speed? 3. What is the relationship between the diffraction pattern and the momentum of the pa ...
... fast moving electrons and slower moving electrons? 2. How would the diffraction patterns compare for a particle with greater mass than an electron (for example a neutron) if they were travelling at the same speed? 3. What is the relationship between the diffraction pattern and the momentum of the pa ...
Document
... • There are two types of dynamic tides: • 1) the ones appropriate for highly eccentric orbits • (DT in the sense of Press and Teukolsky). During periastron passage normal modes of planet and stellar pulsations are exited. These are: fundamental modes with frequencies ~ *, g-modes in case of the pre ...
... • There are two types of dynamic tides: • 1) the ones appropriate for highly eccentric orbits • (DT in the sense of Press and Teukolsky). During periastron passage normal modes of planet and stellar pulsations are exited. These are: fundamental modes with frequencies ~ *, g-modes in case of the pre ...
07optics_8inch_cass
... • Size of blob: “A” is aperture, is wavelength in radians (multiply by 206,265 to convert to arcseconds) • For our telescope (A=203 mm), for 500nm light the blob is 0.6”. (Limiting Optical Resolution of scope is listed as 0.68”). ...
... • Size of blob: “A” is aperture, is wavelength in radians (multiply by 206,265 to convert to arcseconds) • For our telescope (A=203 mm), for 500nm light the blob is 0.6”. (Limiting Optical Resolution of scope is listed as 0.68”). ...
Other Solar Systems Around Other Stars
... transiting planet's atmospheric composition.[79] Water vapor, sodium vapor, methane, and carbon dioxide have been detected in the atmospheres of various exoplanets in this way.[80][81] The technique might conceivably discover atmospheric characteristics that suggest the presence of life on an exopla ...
... transiting planet's atmospheric composition.[79] Water vapor, sodium vapor, methane, and carbon dioxide have been detected in the atmospheres of various exoplanets in this way.[80][81] The technique might conceivably discover atmospheric characteristics that suggest the presence of life on an exopla ...
Interview With a White Dwarf – Teacher Guide
... Extend and Evaluate (rubric and answers) Students should cover each of these six main topics in their story. For grading: each of these 6 topic is worth 10%, the overall quality and creativity of the story is worth 20%, and the plots (answers below) are worth 5% each. 1. What are the primary charac ...
... Extend and Evaluate (rubric and answers) Students should cover each of these six main topics in their story. For grading: each of these 6 topic is worth 10%, the overall quality and creativity of the story is worth 20%, and the plots (answers below) are worth 5% each. 1. What are the primary charac ...
LIGHT APLIFICATION by STIMULATED EMISSION of RADITIONS
... The excited atom in energy state E1 may not come to ground state at given instant. So it requires external stimulation. When a photon of energy hƒ= E1- E0 strikes the atom in excited state , it comes to ground state. The photon emitted goes parallel to incident photon & both of these photons are in ...
... The excited atom in energy state E1 may not come to ground state at given instant. So it requires external stimulation. When a photon of energy hƒ= E1- E0 strikes the atom in excited state , it comes to ground state. The photon emitted goes parallel to incident photon & both of these photons are in ...
Herbig-Haro jet in the Haro 6–10 system
... is smaller than estimated by Levreault (70.9 Å), but Hα/[OI] ratio is 11.8: two times higher than the data of Goodrich (see the cited paper for details). On the other hand, [S ii]/[O i] line ratio is 0.96, which is close to the values, obtained by Cohen-Fuller and Goodrich. This weakening of the fo ...
... is smaller than estimated by Levreault (70.9 Å), but Hα/[OI] ratio is 11.8: two times higher than the data of Goodrich (see the cited paper for details). On the other hand, [S ii]/[O i] line ratio is 0.96, which is close to the values, obtained by Cohen-Fuller and Goodrich. This weakening of the fo ...
The Contents of the Milky Way
... • azimuth is angle measured E along horizon from north point (0-360o) ...
... • azimuth is angle measured E along horizon from north point (0-360o) ...
Review: How does a star`s mass determine its life story?
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
Lecture 4: Molecular Clouds (1)
... the first clues to understand the formation of stars •First identified as dark nebulae by William and Caroline Herschel (Herschel, 1785), but is was not until photographic observations of Barnard (1919) and Wolf (1923) were these objects established as discrete, optically opaque interstellar clouds. ...
... the first clues to understand the formation of stars •First identified as dark nebulae by William and Caroline Herschel (Herschel, 1785), but is was not until photographic observations of Barnard (1919) and Wolf (1923) were these objects established as discrete, optically opaque interstellar clouds. ...
Document
... Background Explorer • Measure the intensity of radiation at many wavelengths. • 3K thermal emission! ...
... Background Explorer • Measure the intensity of radiation at many wavelengths. • 3K thermal emission! ...
Chapter 3b powerpoint presentation
... numerals I,II,III,IV and V. There will be more about this later. ...
... numerals I,II,III,IV and V. There will be more about this later. ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.