RADIO OBSERVATIONS RELATED TO STAR FORMATION P. G.
... (van den Bergh, 1961. See also Fig. 11 and Sect. III.2).*) ...
... (van den Bergh, 1961. See also Fig. 11 and Sect. III.2).*) ...
Interferometric lithography with an amplitude division interferometer and a desktop
... the beam splitter is a transmission diffraction grating. Figure 1 shows a diagram of the interferometer and a photograph of the experimental setup with the paths of the two beams indicated by dashed curves. The 1 and −1 orders of the grating, that for the 46.9 nm illumination are separated by 2.68°, ...
... the beam splitter is a transmission diffraction grating. Figure 1 shows a diagram of the interferometer and a photograph of the experimental setup with the paths of the two beams indicated by dashed curves. The 1 and −1 orders of the grating, that for the 46.9 nm illumination are separated by 2.68°, ...
SPECTRAL STATE DEPENDENCE OF THE 0.4–2 MEV
... We previously developed a method to classify the states of Cyg X-1 at any given time based on hardness and intensity measurements with the RXTE/ASM and MAXI and on the hard X-ray flux obtained with the Swift/BAT (Grinberg et al. 2013). The ASM and MAXI data can be used to separate all three states (L ...
... We previously developed a method to classify the states of Cyg X-1 at any given time based on hardness and intensity measurements with the RXTE/ASM and MAXI and on the hard X-ray flux obtained with the Swift/BAT (Grinberg et al. 2013). The ASM and MAXI data can be used to separate all three states (L ...
Excited state behaviour of substituted dipyridophenazine Cr(III)
... of the synthesised complexes are shown in Fig. 1. The electronic spectra exhibit strong ligand-centred absorption bands around 270–290 nm and dipyridophenazine p→p* transitions in the 350– 400 nm region. The low intensity shoulders (centred at about 420 nm) may be attributed to d–d transitions. The ...
... of the synthesised complexes are shown in Fig. 1. The electronic spectra exhibit strong ligand-centred absorption bands around 270–290 nm and dipyridophenazine p→p* transitions in the 350– 400 nm region. The low intensity shoulders (centred at about 420 nm) may be attributed to d–d transitions. The ...
IAC_L3_thickdisk
... The total density and surface density of the disk near the sun This is called the Oort limit (see Oort 1960 for a more recent reference). The idea is to use the vertical density distribution (z) and vertical velocity distribution f(W) of a tracer sample of stars to derive dynamically the total (lu ...
... The total density and surface density of the disk near the sun This is called the Oort limit (see Oort 1960 for a more recent reference). The idea is to use the vertical density distribution (z) and vertical velocity distribution f(W) of a tracer sample of stars to derive dynamically the total (lu ...
Detecting industrial pollution in the atmospheres of earth
... • Direct exoplanet detection experiments which look for reflection or thermal emission from the planet could then be used to push constraints on industrial pollutants to terrestrial levels. At the same time, these experiments could search for less exotic biosignatures like the “red edge” of chloroph ...
... • Direct exoplanet detection experiments which look for reflection or thermal emission from the planet could then be used to push constraints on industrial pollutants to terrestrial levels. At the same time, these experiments could search for less exotic biosignatures like the “red edge” of chloroph ...
Cavity Enhanced Reflector Based Hybrid Silicon Laser
... waveguides. The first order mode of the active waveguide is excited from the left. Without the phase section the grating acts as an evanescent Bragg reflector. In this case practically all the optical power is transmitted through the waveguide with a nearly uniform profile along the length of the ac ...
... waveguides. The first order mode of the active waveguide is excited from the left. Without the phase section the grating acts as an evanescent Bragg reflector. In this case practically all the optical power is transmitted through the waveguide with a nearly uniform profile along the length of the ac ...
Sunday, March 24, 2013
... The Odds Must be Crazy (with apologies to the Website & Podcast) One of the greatest potential pitfalls of Arp's hypothesis was that these alignments could be perfectly ordinary chance alignments between bright foreground galaxies and more distant, but brighter, background objects. Arp and supporte ...
... The Odds Must be Crazy (with apologies to the Website & Podcast) One of the greatest potential pitfalls of Arp's hypothesis was that these alignments could be perfectly ordinary chance alignments between bright foreground galaxies and more distant, but brighter, background objects. Arp and supporte ...
Evidence for the Tidal Destruction of Hot Jupiters by Subgiant Stars
... Figure 2. Galactic U V W kinematics of subgiant stars that host exoplanets discovered with the radial-velocity technique. In each panel, we plot the U V W space motions of the subgiant sample as blue points and the density of points in a control sample selected from the Hipparcos catalog as the back ...
... Figure 2. Galactic U V W kinematics of subgiant stars that host exoplanets discovered with the radial-velocity technique. In each panel, we plot the U V W space motions of the subgiant sample as blue points and the density of points in a control sample selected from the Hipparcos catalog as the back ...
Light trapping in thin film organic solar cells
... Light trapping can be achieved upon novel designs of the device geometry [29–33]. A folded or V-shaped geometry is interesting, as its formation requires one single additional step, which is to fold the cell [29]. This can be easily done when a plastic substrate is used. A schematic device architect ...
... Light trapping can be achieved upon novel designs of the device geometry [29–33]. A folded or V-shaped geometry is interesting, as its formation requires one single additional step, which is to fold the cell [29]. This can be easily done when a plastic substrate is used. A schematic device architect ...
Dark Matter and Dark Energy components chapter 7
... Evidence for dark matter - 1 • Observations b at different d ff scales l : more matter in the h universe than what is measured as electromagnetic radiation d ((visible bl llight, h radio, d IR, X-rays, g-rays)) • Visible matter = stars, interstellar gas, dust : light & atomic spectra (mainly H) g m ...
... Evidence for dark matter - 1 • Observations b at different d ff scales l : more matter in the h universe than what is measured as electromagnetic radiation d ((visible bl llight, h radio, d IR, X-rays, g-rays)) • Visible matter = stars, interstellar gas, dust : light & atomic spectra (mainly H) g m ...
the next decade - Lowell Observatory
... Observations from the new instrument were (and are) expressed in terms of a second dimensionless quantity S, similar to F, defined as the ratio of counts in two 1.09 Å wide triangular bandpasses centered at the H and K line cores to the counts in two 20 Å wide bandpasses centered at λ4001.1 and λ390 ...
... Observations from the new instrument were (and are) expressed in terms of a second dimensionless quantity S, similar to F, defined as the ratio of counts in two 1.09 Å wide triangular bandpasses centered at the H and K line cores to the counts in two 20 Å wide bandpasses centered at λ4001.1 and λ390 ...
- Physics365.com
... whereas the upper layers are colder and denser. When the ray of light moves downwards after reflection from object like tree it is moving from denser to rarer medium. The agle of incidence goes on increasing with refraction are each layer of atmosphere. For one particular layer the angle of incidenc ...
... whereas the upper layers are colder and denser. When the ray of light moves downwards after reflection from object like tree it is moving from denser to rarer medium. The agle of incidence goes on increasing with refraction are each layer of atmosphere. For one particular layer the angle of incidenc ...
Imaging Spatial-Helical Mode Interference of Single Photons
... In summary, we present measurements of the probability distribution of single photons in a superposition of two spatial modes. The imaged pattern had an off-center helical wavefront, which is the result of the superposition of ℓ = 1 and ℓ = 0 modes. The results show strong evidence of single-photon ...
... In summary, we present measurements of the probability distribution of single photons in a superposition of two spatial modes. The imaged pattern had an off-center helical wavefront, which is the result of the superposition of ℓ = 1 and ℓ = 0 modes. The results show strong evidence of single-photon ...
Binocular Certificate Handbook
... Galaxies formed in the early Universe when huge clumps of gas began to aggregate. Their cores generally consist of older suns while the arms of spirals host numerous clusters where new stars are being born. Supernovae enrich the interstellar medium with new elements. Our own galaxy, the Milky Way, i ...
... Galaxies formed in the early Universe when huge clumps of gas began to aggregate. Their cores generally consist of older suns while the arms of spirals host numerous clusters where new stars are being born. Supernovae enrich the interstellar medium with new elements. Our own galaxy, the Milky Way, i ...
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.