Discovery of the host galaxy of HDF850. 1, the brightest sub
... three-colour image of the HDF, is not only consistent with the mm/sub-mm position of HDF850.1, but is statistically rather unlikely to lie so close to the sub-mm/mm source by chance (p ≃ 0.05, because 3-586.0 is relatively bright). However, both Hughes et al. and Downes et al. rejected the possibili ...
... three-colour image of the HDF, is not only consistent with the mm/sub-mm position of HDF850.1, but is statistically rather unlikely to lie so close to the sub-mm/mm source by chance (p ≃ 0.05, because 3-586.0 is relatively bright). However, both Hughes et al. and Downes et al. rejected the possibili ...
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... called ‘‘finger diagrams’’). Such diagrams show the ranges of frequency modes as a function of wave vectors where the propagation constant is either real (propagation allowed—Bloch bands) or imaginary (propagation forbidden—band gaps). Within the gaps, frequency modes cannot exist but light can be l ...
... called ‘‘finger diagrams’’). Such diagrams show the ranges of frequency modes as a function of wave vectors where the propagation constant is either real (propagation allowed—Bloch bands) or imaginary (propagation forbidden—band gaps). Within the gaps, frequency modes cannot exist but light can be l ...
Modelling the observed properties of carbon-enhanced metal
... Key words. stars: abundances – stars: chemically peculiar – binaries: general – Galaxy: halo – stars: Population II – stars: low-mass ...
... Key words. stars: abundances – stars: chemically peculiar – binaries: general – Galaxy: halo – stars: Population II – stars: low-mass ...
Th`ese d`astrophysique Chemodynamical Simulations of Evolution
... Numerical simulations are a useful tool to understand the complex and non-linear behaviour of galaxies. By using simple N-body calculations they increase our understanding of simple stellar systems like globular clusters or the (dark matter) history of our universe. Chemodynamical simulations are de ...
... Numerical simulations are a useful tool to understand the complex and non-linear behaviour of galaxies. By using simple N-body calculations they increase our understanding of simple stellar systems like globular clusters or the (dark matter) history of our universe. Chemodynamical simulations are de ...
WILLIAM HERSCHEL AND THE `GARNET` STARS: μ CEPHEI AND
... Abstract: Although William Herschel‘s ‗Garnet Star‘ (µ Cephei) is a prominent object, the story of the discovery of this famous red star is not well documented. Prior to and after Herschel, the identification of this star was the subject of confusion in various catalogues and atlases. The case is co ...
... Abstract: Although William Herschel‘s ‗Garnet Star‘ (µ Cephei) is a prominent object, the story of the discovery of this famous red star is not well documented. Prior to and after Herschel, the identification of this star was the subject of confusion in various catalogues and atlases. The case is co ...
AVS03ML - Brigham Young University
... from the target which then deposit to the silicon or quartz substrate. For thermal evaporation, a wire or boat is resistively heated by passing a large current through it. The heated metal (ie. aluminum, nickel, gold) evaporates and is deposited on the silicon or quartz substrate. ...
... from the target which then deposit to the silicon or quartz substrate. For thermal evaporation, a wire or boat is resistively heated by passing a large current through it. The heated metal (ie. aluminum, nickel, gold) evaporates and is deposited on the silicon or quartz substrate. ...
1. Introduction - Radioengineering
... we can observe the pulse twice. From the two peaks curved out from the time-domain trace the amplitude and the phase spectra were calculated by the Fourier transformation. Then we can evaluate the change of the spectra due to the propagation and reflection. Using such spectra obtained with the devic ...
... we can observe the pulse twice. From the two peaks curved out from the time-domain trace the amplitude and the phase spectra were calculated by the Fourier transformation. Then we can evaluate the change of the spectra due to the propagation and reflection. Using such spectra obtained with the devic ...
Galaxy Evolution Over the Past Eleven Billion Years: Mergers and
... for being so helpful and accommodating. I thank Stefan for giving me an opportunity to observe on La Palma and in Chile, and Martin for commenting on parts of this thesis. I would like to thank Dave and Josh for hosting my six-month visit at IfA Hawaii. During my stay, I have learnt a lot about far- ...
... for being so helpful and accommodating. I thank Stefan for giving me an opportunity to observe on La Palma and in Chile, and Martin for commenting on parts of this thesis. I would like to thank Dave and Josh for hosting my six-month visit at IfA Hawaii. During my stay, I have learnt a lot about far- ...
Document
... after World War II • Physicist, many inventions • Developed modification of interference microscopes now known as differential interference contrast (DIC) optics Theory & Appl. Light Microscopy ...
... after World War II • Physicist, many inventions • Developed modification of interference microscopes now known as differential interference contrast (DIC) optics Theory & Appl. Light Microscopy ...
April 2016 - Central Arkansas Astronomical Society
... According to general rela vity, a pair of black holes orbi ng around each other lose energy through the emission of gravita onal waves, causing them to gradually approach each other over billions of years, and then much more Gravita onal waves carry informa on about their drama c quickly in the final ...
... According to general rela vity, a pair of black holes orbi ng around each other lose energy through the emission of gravita onal waves, causing them to gradually approach each other over billions of years, and then much more Gravita onal waves carry informa on about their drama c quickly in the final ...
Dispersion Compensation Using Tunable Chirped Apodized Far Off Resonance Fiber
... becomes linear and the modulation associated with the presence of side lobes is eliminated. The use of apodized FBGs (AFBGs) in transmission for dispersion compensation has several advantages over using them in reflection. To operate the grating in reflection requires in order realizing wavelength d ...
... becomes linear and the modulation associated with the presence of side lobes is eliminated. The use of apodized FBGs (AFBGs) in transmission for dispersion compensation has several advantages over using them in reflection. To operate the grating in reflection requires in order realizing wavelength d ...
Strain-Temperature Discrimination Using Multimode Interference in
... where D = κT (87) κε(25) − κε(87) κT (25) . The limitation of most methods reported for simultaneous measurement of pairs of quasi-static parameters arises from a small value of the matrix determinant, which makes it highly sensitive to noise. The configuration is substantially immune to this proble ...
... where D = κT (87) κε(25) − κε(87) κT (25) . The limitation of most methods reported for simultaneous measurement of pairs of quasi-static parameters arises from a small value of the matrix determinant, which makes it highly sensitive to noise. The configuration is substantially immune to this proble ...
EXCITATION OF RADIAL P-MODES IN THE SUN AND STARS ROBERT STEIN
... obtain the radiative heating and cooling, the Feautrier equations are integrated along one vertical and 4 slanted rays (which are rotated each time step) through each grid point on the surface with the opacity and Planck functions interpolated to the intersection of the rays with each horizontal pla ...
... obtain the radiative heating and cooling, the Feautrier equations are integrated along one vertical and 4 slanted rays (which are rotated each time step) through each grid point on the surface with the opacity and Planck functions interpolated to the intersection of the rays with each horizontal pla ...
Coherent and incoherent scattering in the resonance fluorescence
... system in which a single molecule can extinguish an ongoing laser beam by more than 10 %. DBATT (dibenzanthanthrene) molecules in alcane matrices have been shown to behave as quantum mechanical two-level systems at liquid helium temperatures. Furthermore, they can easily be introduced in various opt ...
... system in which a single molecule can extinguish an ongoing laser beam by more than 10 %. DBATT (dibenzanthanthrene) molecules in alcane matrices have been shown to behave as quantum mechanical two-level systems at liquid helium temperatures. Furthermore, they can easily be introduced in various opt ...
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.