L12-no equations
... Spectrum of Crab pulsar is nonthermal. Suggestive of synchrotron radiation - relativistic charged particles emit radiation dependent on particle energy. Charged particles (e-) accelerated along magnetic field lines, radiation is beamed in the the acceleration direction. If axes are not aligned, lead ...
... Spectrum of Crab pulsar is nonthermal. Suggestive of synchrotron radiation - relativistic charged particles emit radiation dependent on particle energy. Charged particles (e-) accelerated along magnetic field lines, radiation is beamed in the the acceleration direction. If axes are not aligned, lead ...
Luminescence spectroscopy
... of translation motion of the molecular fragments. Molecular Luminescence Spectroscopy Luminescence spectroscopy is a technique which studies the fluorescence, phosphorescence, and chemiluminescence of chemical systems. Fluorescence is light emission caused by irradiation with light (normally visible ...
... of translation motion of the molecular fragments. Molecular Luminescence Spectroscopy Luminescence spectroscopy is a technique which studies the fluorescence, phosphorescence, and chemiluminescence of chemical systems. Fluorescence is light emission caused by irradiation with light (normally visible ...
secon harmonic generation
... experiments. Two input fields, each possessing a frequency , are combined together to generate an output frequency at a frequency of 2. The two input electric fields are from the same wave. Energy conservation rule dictates, 1+2=+2. The conservation of momentum (or wavevectors) should also b ...
... experiments. Two input fields, each possessing a frequency , are combined together to generate an output frequency at a frequency of 2. The two input electric fields are from the same wave. Energy conservation rule dictates, 1+2=+2. The conservation of momentum (or wavevectors) should also b ...
PPT
... Nebula halo thickness Nebular electron density Nebular electron temperature Nebular mass Nebula derived distance Nebula expansion velocity Nebula derived age ...
... Nebula halo thickness Nebular electron density Nebular electron temperature Nebular mass Nebula derived distance Nebula expansion velocity Nebula derived age ...
Star Classification and its Connection to Exoplanets.
... the pie, so the viewer can see the result: G classified (sun-like) stars have the majority of the exoplanets, at 38%. The second pie chart uses data from the percentage of stars that have planets, so at around 6.6% of a total of around 18%, G stars make up about 37%, again the dominant planet host. ...
... the pie, so the viewer can see the result: G classified (sun-like) stars have the majority of the exoplanets, at 38%. The second pie chart uses data from the percentage of stars that have planets, so at around 6.6% of a total of around 18%, G stars make up about 37%, again the dominant planet host. ...
FTS Fourier Transform Spectroscopy 2015S Interim Manual
... glass) at the location of the detector. If there is no apparent interference pattern, check the position of each output light through the interferometer by blocking each light path. Adjust the interferometer mirrors using the knobs on their backs such that the position for each light output is the s ...
... glass) at the location of the detector. If there is no apparent interference pattern, check the position of each output light through the interferometer by blocking each light path. Adjust the interferometer mirrors using the knobs on their backs such that the position for each light output is the s ...
The physics of white dwarfs
... also begun white-dwarf observations. As a result, detailed spectroscopic information has now been acquired for more than 400 of these stars. More recently, satellite and rocket-borne observations have begun to open up the far ultraviolet and x-ray regions of the spectrum that are inaccessible from g ...
... also begun white-dwarf observations. As a result, detailed spectroscopic information has now been acquired for more than 400 of these stars. More recently, satellite and rocket-borne observations have begun to open up the far ultraviolet and x-ray regions of the spectrum that are inaccessible from g ...
Cepheid
... 1. The brightest Cepheid in the table varies over magnitudes ranging from 11.2 (at maximum luminosity) to 12.1 (at the faintest), with an ‘average’ of ~ 11.65. Its period is 127 days (more than four months). Note, by the way, that this star is ~5 magnitudes (a factor of 100) fainter than the dimmest ...
... 1. The brightest Cepheid in the table varies over magnitudes ranging from 11.2 (at maximum luminosity) to 12.1 (at the faintest), with an ‘average’ of ~ 11.65. Its period is 127 days (more than four months). Note, by the way, that this star is ~5 magnitudes (a factor of 100) fainter than the dimmest ...
pix_get_grating_wavelength Synopsis Syntax Description
... Calculates the wavelength, in Angstrom, for a given grating position and using the current pixlib settings. The x and y values are in the GAC coordinate system, and so represent the grating dispersion and cross−dispersion angles in degrees. The grating order − as set by pix_set_grating() − must be n ...
... Calculates the wavelength, in Angstrom, for a given grating position and using the current pixlib settings. The x and y values are in the GAC coordinate system, and so represent the grating dispersion and cross−dispersion angles in degrees. The grating order − as set by pix_set_grating() − must be n ...
File - ce
... excited electrons long time before decaying back to the ground state, and increase in proportion of electrons will assume a high energy state as the medium is pumped , until a population inversion occurs . means more atoms in the upper state than the ground state ...
... excited electrons long time before decaying back to the ground state, and increase in proportion of electrons will assume a high energy state as the medium is pumped , until a population inversion occurs . means more atoms in the upper state than the ground state ...
Validation of the frequency modulation technique applied to the
... there has now even been an asteroseismic determination of core-tosurface rotation in a main-sequence star (Kurtz et al. 2014). The emphasis of the Kepler search for habitable planets has been on cool stars, where transits are easier to detect because of the larger planet-to-star size ratio and the p ...
... there has now even been an asteroseismic determination of core-tosurface rotation in a main-sequence star (Kurtz et al. 2014). The emphasis of the Kepler search for habitable planets has been on cool stars, where transits are easier to detect because of the larger planet-to-star size ratio and the p ...
Chemical composition of cosmic dust in the solar vicinity
... - presence of dust in cold/warm (<104 K) ISM: reddening & extinction - chemical composition difficult to be determind directly: lack of spectroscopic indicators ► indirect methods (X/H)dust = (X/H)ref – (X/H)gas ...
... - presence of dust in cold/warm (<104 K) ISM: reddening & extinction - chemical composition difficult to be determind directly: lack of spectroscopic indicators ► indirect methods (X/H)dust = (X/H)ref – (X/H)gas ...
Chapter 6 - Photovoltaic Devices - UAH Department of Electrical and
... – Long wavelength photons generate electrons in the p‐ type neutral region that must drift diffuse using the diffusion coefficient of the material to n‐type region – Medium wavelength photons generate EHP in the depletion region yielding electron transit times based on carrier mobility in the el ...
... – Long wavelength photons generate electrons in the p‐ type neutral region that must drift diffuse using the diffusion coefficient of the material to n‐type region – Medium wavelength photons generate EHP in the depletion region yielding electron transit times based on carrier mobility in the el ...
Lecture9
... Fermi energy high when density is high. That means density effect is much larger than temperature effect. Fermi energy is the energy of degenerate (quantized) particles. (See class notes for the details.) Let’s increase density of `zero-temperature’ matter from the terrestrial value (e.g., ordinary ...
... Fermi energy high when density is high. That means density effect is much larger than temperature effect. Fermi energy is the energy of degenerate (quantized) particles. (See class notes for the details.) Let’s increase density of `zero-temperature’ matter from the terrestrial value (e.g., ordinary ...
Colloidal Core/Shell quantum dots in our lab
... Colloidal QDs have been synthesized successfully for about ten years, but their optoelectronic application has not been commercially realized yet. In the following, Quantum-confined Stark effect (QCSE), which can be used in Optoelectronic modulators, is as an example. ...
... Colloidal QDs have been synthesized successfully for about ten years, but their optoelectronic application has not been commercially realized yet. In the following, Quantum-confined Stark effect (QCSE), which can be used in Optoelectronic modulators, is as an example. ...
1. Our Place in the Universe
... • Describe the basic motions of “spaceship Earth.” • Earth rotates on its axis once each day and orbits around the Sun once each year. Our Solar System orbits the center of the Milky Way Galaxy about every 230 million years. Galaxies in the Local Group move relative to one another, while all other g ...
... • Describe the basic motions of “spaceship Earth.” • Earth rotates on its axis once each day and orbits around the Sun once each year. Our Solar System orbits the center of the Milky Way Galaxy about every 230 million years. Galaxies in the Local Group move relative to one another, while all other g ...
A SUMMARY OF SELF
... 2. Experimental cross sections are often available for reactions related to explosive burning. What is the reason for this? 3. The possibilities to study p-, s- and r-process nuclei in the laboratory are very different. For which of the processes are most (least) experimental data available. What do ...
... 2. Experimental cross sections are often available for reactions related to explosive burning. What is the reason for this? 3. The possibilities to study p-, s- and r-process nuclei in the laboratory are very different. For which of the processes are most (least) experimental data available. What do ...
A 6% measurement of the Hubble parameter at ζ ∼ 0.45: direct
... a differential approach. On the one hand, it should be noted that the relevant quantities in this approach are the relative ages dt, which have the advantage of factorizing out systematic effects inherent to absolute age estimates. On the other hand, this method allows us to keep under control many ...
... a differential approach. On the one hand, it should be noted that the relevant quantities in this approach are the relative ages dt, which have the advantage of factorizing out systematic effects inherent to absolute age estimates. On the other hand, this method allows us to keep under control many ...
Section 2 Movements of the Earth
... • Explain how the change in apparent positions of constellations provides evidence of Earth’s rotation and revolution around the sun. • Summarize how Earth’s rotation and revolution provide a basis for measuring time. • Explain how the tilt of Earth’s axis and Earth’s movement ...
... • Explain how the change in apparent positions of constellations provides evidence of Earth’s rotation and revolution around the sun. • Summarize how Earth’s rotation and revolution provide a basis for measuring time. • Explain how the tilt of Earth’s axis and Earth’s movement ...
Beasts of the Southern Wild: Discovery of nine Ultra Faint satellites
... we have discovered cluster around the LMC and the SMC. We show that such spatial distribution is unlikely under the assumption of isotropy, and, therefore, conclude that at least some of the new satellites must have been associated with the Magellanic Clouds in the past. Keywords: Galaxy: halo, gala ...
... we have discovered cluster around the LMC and the SMC. We show that such spatial distribution is unlikely under the assumption of isotropy, and, therefore, conclude that at least some of the new satellites must have been associated with the Magellanic Clouds in the past. Keywords: Galaxy: halo, gala ...
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.