Small glitches: the role of strange nuggets?
... (2000); Lugones & Horvath (2004), the results were model dependent. On the other hand, the properties of SNs could be constrained by astrophysics, if they do exist in the Universe. As proposed by Witten, SNs could be a kind of dark matter candidate (Witten 1984). Although being baryonic matter, SNs ...
... (2000); Lugones & Horvath (2004), the results were model dependent. On the other hand, the properties of SNs could be constrained by astrophysics, if they do exist in the Universe. As proposed by Witten, SNs could be a kind of dark matter candidate (Witten 1984). Although being baryonic matter, SNs ...
A minimally invasive in-fibre Bragg grating sensor
... D-shape optical fibre is one example of the second class of birefringent fibre that is based on geometric birefringence. ...
... D-shape optical fibre is one example of the second class of birefringent fibre that is based on geometric birefringence. ...
The Observer`s Guide to the Gamma-Ray Burst
... observer-frame R-band LCs of GRB-SNe (redshift range 0.145 < z < 1.006) shown in Fig. 3, they too span a similar range at a given epoch. Indeed, the peak SN brightness during the SN “bump” phase ranges from R = 19.5 for GRB 130702A (the brightest GRB-SN bump observed to date) to R = 25 for GRB 02121 ...
... observer-frame R-band LCs of GRB-SNe (redshift range 0.145 < z < 1.006) shown in Fig. 3, they too span a similar range at a given epoch. Indeed, the peak SN brightness during the SN “bump” phase ranges from R = 19.5 for GRB 130702A (the brightest GRB-SN bump observed to date) to R = 25 for GRB 02121 ...
Effective Operators for Dark Matter Detection
... reasons. Following the naturalness principle, for instance, one would expect some new physics around the TeV scale in order to solve the Higgs hierarchy problem, i.e. to avoid fine-tuning of its couplings and provide a ‘natural’ explanation for its light mass. It is important to notice that this is ...
... reasons. Following the naturalness principle, for instance, one would expect some new physics around the TeV scale in order to solve the Higgs hierarchy problem, i.e. to avoid fine-tuning of its couplings and provide a ‘natural’ explanation for its light mass. It is important to notice that this is ...
THE SYNTHESIS AND CHARACTERIZATION OF PHOSPHONIUM INDENYLIDE COMPLEXES OF RUTHENIUM(II)
... the metal centre, an arene exchange reaction between a PHIN ligand and RuCl2(η6ethylbenzoate)(PPh3) was employed to produce RuCl2(II)(PPh3) which was characterized by extensive NMR spectroscopy. ...
... the metal centre, an arene exchange reaction between a PHIN ligand and RuCl2(η6ethylbenzoate)(PPh3) was employed to produce RuCl2(II)(PPh3) which was characterized by extensive NMR spectroscopy. ...
Holographic Optical Beam-Steering (HOBS)
... to communicate data through free space, a science called Free-Space Laser Communication (lasercom). Lasercom is superior to other methods of wireless communication with respect to data transfer rates and transmission security because it is very difficult to jam the beam or intercept data [Cadogan an ...
... to communicate data through free space, a science called Free-Space Laser Communication (lasercom). Lasercom is superior to other methods of wireless communication with respect to data transfer rates and transmission security because it is very difficult to jam the beam or intercept data [Cadogan an ...
Diffraction Grating Handbook
... scientists with gratings superior to Fraunhofer's. About 1870, the scene of grating development returned to America, where L.M. Rutherfurd, a New York lawyer with an avid interest in astronomy, became interested in gratings. In just a few years, Rutherfurd learned to rule reflection gratings in spec ...
... scientists with gratings superior to Fraunhofer's. About 1870, the scene of grating development returned to America, where L.M. Rutherfurd, a New York lawyer with an avid interest in astronomy, became interested in gratings. In just a few years, Rutherfurd learned to rule reflection gratings in spec ...
Scanning angle total internal reflection Raman spectroscopy and
... Raman signal enhancement technique are described for the TIR geometry using a thin, smooth, gold film at the prism / sample interface as a means to increase the magnitude of the mean squared electric field (MSEF) encountered by the analyte and thus increase the generated Raman scatter. The inclusion ...
... Raman signal enhancement technique are described for the TIR geometry using a thin, smooth, gold film at the prism / sample interface as a means to increase the magnitude of the mean squared electric field (MSEF) encountered by the analyte and thus increase the generated Raman scatter. The inclusion ...
Earth Centered Universe Pro V6.0
... second computer is owned by the licensee or used exclusively by the licensee (for example, a notebook computer used in the field or a computer used at your place of work), and there is no possibility of the Software being used on both computers at the same time. You may not loan or rent the Software ...
... second computer is owned by the licensee or used exclusively by the licensee (for example, a notebook computer used in the field or a computer used at your place of work), and there is no possibility of the Software being used on both computers at the same time. You may not loan or rent the Software ...
The effect of dark matter capture on binary stars
... According to the WIMP model, stars in the galaxy travel through a background field of WIMPs that are constantly crossing the star. Some of these WIMPs collide with atomic nuclei inside stars via the weak force interaction. The ones that lose sufficient kinetic energy become bound to the star. Captur ...
... According to the WIMP model, stars in the galaxy travel through a background field of WIMPs that are constantly crossing the star. Some of these WIMPs collide with atomic nuclei inside stars via the weak force interaction. The ones that lose sufficient kinetic energy become bound to the star. Captur ...
Studies of Gamma-Ray Burst Prompt Emission with RHESSI and NCT by
... irregular gamma-ray emission. This initial “prompt” emission is followed by “afterglow” emission at other wavelengths that fades smoothly over hours to years. GRB prompt emission has been observed with ever-increasing sophistication for more than four decades, but many details of its origin remain u ...
... irregular gamma-ray emission. This initial “prompt” emission is followed by “afterglow” emission at other wavelengths that fades smoothly over hours to years. GRB prompt emission has been observed with ever-increasing sophistication for more than four decades, but many details of its origin remain u ...
Simulating the outer layers of Procyon A: a comparison with the Sun
... mean superadiabaticity peaks as a function of log P in the Sun and in Procyon. A major difference between the two simulations is that the peak of the SAL in Procyon is in a region of much lower density than in the Sun. The SAL peak in the Sun is located below the photosphere in a region that is rela ...
... mean superadiabaticity peaks as a function of log P in the Sun and in Procyon. A major difference between the two simulations is that the peak of the SAL in Procyon is in a region of much lower density than in the Sun. The SAL peak in the Sun is located below the photosphere in a region that is rela ...
Moving mesh cosmology: numerical techniques and global statistics
... It thus appears that there are at least two important challenges in the field of cosmological hydrodynamics simulations. One lies in an adequate treatment of all relevant physics of galaxy formation, in particular with respect to the reliability of the parametrizations of subresolution physics, and ...
... It thus appears that there are at least two important challenges in the field of cosmological hydrodynamics simulations. One lies in an adequate treatment of all relevant physics of galaxy formation, in particular with respect to the reliability of the parametrizations of subresolution physics, and ...
A minimally invasive in-fibre Bragg grating sensor
... peaked spectra are reflected. One spectrum corresponds to light polarized along the slow ...
... peaked spectra are reflected. One spectrum corresponds to light polarized along the slow ...
IAA Annual Report 2014
... only (nearly) metal-free ionizing stars, similar to PopIII stars, the first ones that ever shone in the Universe, can explain the HeII ionization of IZw18. VLT zCOSMOS optical deep spectroscopy along with detailed HST imaging has allowed us to enlarge the sample of extreme emission line galaxies up ...
... only (nearly) metal-free ionizing stars, similar to PopIII stars, the first ones that ever shone in the Universe, can explain the HeII ionization of IZw18. VLT zCOSMOS optical deep spectroscopy along with detailed HST imaging has allowed us to enlarge the sample of extreme emission line galaxies up ...
Erbium-implanted high-Q silica toroidal microcavity laser
... to the advantages in fabrication, these devices provide improved spectral performance as compared to microspheres owing to their reduced modal spectra [16,18]. In particular, single-mode operation was possible in these devices. As a complementary method of gain functionalization that is more compati ...
... to the advantages in fabrication, these devices provide improved spectral performance as compared to microspheres owing to their reduced modal spectra [16,18]. In particular, single-mode operation was possible in these devices. As a complementary method of gain functionalization that is more compati ...
Color-changing and color-tunable photonic bandgap fiber textiles
... At this point, however, the cost of textiles based on such fibers would be prohibitively high as the price of such fibers ranges in hundreds of dollars per meter due to complexity of their fabrication. We believe that acceptance of photonic crystal fibers by the textile industry can only become poss ...
... At this point, however, the cost of textiles based on such fibers would be prohibitively high as the price of such fibers ranges in hundreds of dollars per meter due to complexity of their fabrication. We believe that acceptance of photonic crystal fibers by the textile industry can only become poss ...
DESIGN AND FABRICATION OF GUIDED
... Figure 2-6 Field plot corresponding to different resonances shown in Figure 2-4. (a) GMR #1 is a TE1,0 mode, (b) GMR#2 shows a TE1,1 mode, (c) GMR #3 is a TE2,0 mode, and (d) GMR #4 is a mixture of TE2,1, and TE1,2. The same device parameters from Figure 2-4 are used for this calculation. .......... ...
... Figure 2-6 Field plot corresponding to different resonances shown in Figure 2-4. (a) GMR #1 is a TE1,0 mode, (b) GMR#2 shows a TE1,1 mode, (c) GMR #3 is a TE2,0 mode, and (d) GMR #4 is a mixture of TE2,1, and TE1,2. The same device parameters from Figure 2-4 are used for this calculation. .......... ...
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.