Super and massive AGB stars-IV. Final fates
... treatment of the convective boundaries. Previously we used the strict Schwarzschild criterion for convection whilst here (and in Papers II and III) it is replaced by the more physically motivated search for convective neutrality described in Lattanzio (1986). The present treatment of convective boun ...
... treatment of the convective boundaries. Previously we used the strict Schwarzschild criterion for convection whilst here (and in Papers II and III) it is replaced by the more physically motivated search for convective neutrality described in Lattanzio (1986). The present treatment of convective boun ...
Active Plasmonics: Surface Plasmon Interaction With Optical Emitters
... favors higher modal gain. However, when decreasing the spacing between individual QWs and their overall distance from the metal film, a considerable decrease in performance could be expected due to enhanced spontaneous emission into lossy surface waves (LSWs) and reduced carrier confinement, respect ...
... favors higher modal gain. However, when decreasing the spacing between individual QWs and their overall distance from the metal film, a considerable decrease in performance could be expected due to enhanced spontaneous emission into lossy surface waves (LSWs) and reduced carrier confinement, respect ...
EXTREMELY EXTENDED DUST SHELLS AROUND EVOLVED
... from your spirit and courage. I would also like to thank my wife, Heather Shawver, and our beautiful children, Rosemary and Brianna , for making me see life with a new meaning of hope and prosperity. I also thank my long - term child-hood friend, Tholinhlanhla Henry Ngcobo for helping me during tryi ...
... from your spirit and courage. I would also like to thank my wife, Heather Shawver, and our beautiful children, Rosemary and Brianna , for making me see life with a new meaning of hope and prosperity. I also thank my long - term child-hood friend, Tholinhlanhla Henry Ngcobo for helping me during tryi ...
NexStar SLT Series Manual
... mastered your telescope’s operation. The NexStar hand control has built-in instructions to guide you through all the alignment procedures needed to have the telescope up and running in minutes. Use this manual in conjunction with the on-screen instructions provided by the hand control. The manual gi ...
... mastered your telescope’s operation. The NexStar hand control has built-in instructions to guide you through all the alignment procedures needed to have the telescope up and running in minutes. Use this manual in conjunction with the on-screen instructions provided by the hand control. The manual gi ...
Radio pulsars
... than doubled the number of known pulsars • New population of high-B pulsars and new SNR associations • Globular clusters contain many millisecond pulsars • Precision timing of binary millisecond pulsars measures many properties of binary stars and tests general relativity. • Discovery of highly rela ...
... than doubled the number of known pulsars • New population of high-B pulsars and new SNR associations • Globular clusters contain many millisecond pulsars • Precision timing of binary millisecond pulsars measures many properties of binary stars and tests general relativity. • Discovery of highly rela ...
W.M. Keck Observatory Annual Report 2009
... studying planets orbiting nearby stars is now one of the most exciting and dynamic areas of astronomy. “Exoplanet” research, a relatively new field of study, has developed beyond its initial emphasis on proving whether or not planets exist beyond our own Solar System. With over 400 of these worlds i ...
... studying planets orbiting nearby stars is now one of the most exciting and dynamic areas of astronomy. “Exoplanet” research, a relatively new field of study, has developed beyond its initial emphasis on proving whether or not planets exist beyond our own Solar System. With over 400 of these worlds i ...
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... of cylindrical prism in the experiment. Comparison with dispersion curves calculated for uncoupled TPP and SPP shows clear repulsion of hybrid state components in the crossing point of reflectivity dips. Fig. 3(a) shows Rðk; hÞ measured for the TE polarized light when SPP propagation is forbidden an ...
... of cylindrical prism in the experiment. Comparison with dispersion curves calculated for uncoupled TPP and SPP shows clear repulsion of hybrid state components in the crossing point of reflectivity dips. Fig. 3(a) shows Rðk; hÞ measured for the TE polarized light when SPP propagation is forbidden an ...
Determination of guided-mode resonances in photonic crystal slabs
... case of infinitely small holes, we saw there were two possibilities: the two polarizations of the waveguide mode. To confirm this for the case for varying hole size and to identify the modes, we calculated the band diagram of the PhC membrane structure. The band structures are calculated using the p ...
... case of infinitely small holes, we saw there were two possibilities: the two polarizations of the waveguide mode. To confirm this for the case for varying hole size and to identify the modes, we calculated the band diagram of the PhC membrane structure. The band structures are calculated using the p ...
Quantitative spectroscopic photoacoustic imaging
... models of light transport and, in broad terms, how they might be used in inversions for estimating optical properties. The later sections discuss the specifics of methods that have been proposed assuming, respectively, that the situation is onedimensional (Sec. 3), that optical properties can be obt ...
... models of light transport and, in broad terms, how they might be used in inversions for estimating optical properties. The later sections discuss the specifics of methods that have been proposed assuming, respectively, that the situation is onedimensional (Sec. 3), that optical properties can be obt ...
Reflectivity of Nonlinear Apodized Chirped Fiber Bragg Grating Under Water
... An FBG is an optical fiber, in which the refractive index in a part of its core is perturbed forming a periodic or quasi-periodic index modulation profile. A narrow band of the incident optical field within the fiber is reflected by successive, coherent scattering from the index variations. W hen th ...
... An FBG is an optical fiber, in which the refractive index in a part of its core is perturbed forming a periodic or quasi-periodic index modulation profile. A narrow band of the incident optical field within the fiber is reflected by successive, coherent scattering from the index variations. W hen th ...
L-edge X-ray absorption study of mononuclear vanadium complexes
... structure of catalysts with their catalytic performance.6,8–10 In particular, experimental in situ techniques based on vibrational and X-ray absorption spectroscopies have been developed.6,11–15 It has been shown that Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy is a powerful tech ...
... structure of catalysts with their catalytic performance.6,8–10 In particular, experimental in situ techniques based on vibrational and X-ray absorption spectroscopies have been developed.6,11–15 It has been shown that Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy is a powerful tech ...
A-141
... always use LEDs as the light source. The light emitted from LEDs oscillates in the vertical and horizontal directions and is referred to as non-polarized light. There are optical filters that constrain the oscillations of non-polarized light to just one direction. These are known as polarizing filte ...
... always use LEDs as the light source. The light emitted from LEDs oscillates in the vertical and horizontal directions and is referred to as non-polarized light. There are optical filters that constrain the oscillations of non-polarized light to just one direction. These are known as polarizing filte ...
0004-637X 778 2 119
... assume that the source is in the accretion phase and take rin = rA . It is implicitly assumed that the boundary layer of the disk could extend down to the co-rotation radius, while rin represents the inner radius of the thin disk or the outer radius of the boundary layer. For the accretion phase, fr ...
... assume that the source is in the accretion phase and take rin = rA . It is implicitly assumed that the boundary layer of the disk could extend down to the co-rotation radius, while rin represents the inner radius of the thin disk or the outer radius of the boundary layer. For the accretion phase, fr ...
9 The Clearing of Protoplanetary Disks and of the Protosolar Nebula
... grains inside ∼1 AU over this timescale. Care should be taken in determining the dispersal of primordial dust from the decrease in disk frequency alone since both primordial and debris disks may be present in the age range ∼5-10 Myr. A better approach might be the one proposed by Cieza et al. (2007) ...
... grains inside ∼1 AU over this timescale. Care should be taken in determining the dispersal of primordial dust from the decrease in disk frequency alone since both primordial and debris disks may be present in the age range ∼5-10 Myr. A better approach might be the one proposed by Cieza et al. (2007) ...
Reversible binding of sulfur dioxide to arylplatinum (II) and nickel (II
... X-ray Measurements and Refinement of [PtBr(C6H3solution. Upon bubbling gaseous SO2through the solution the (CH2NMe2)2-o,o')(q'-S0,)](2b). Crystals of the title compound color of the mixture changed to orange (Pt) or dark red (Ni). are monoclinic, space group P2,/c, with four molecules in a unit Addi ...
... X-ray Measurements and Refinement of [PtBr(C6H3solution. Upon bubbling gaseous SO2through the solution the (CH2NMe2)2-o,o')(q'-S0,)](2b). Crystals of the title compound color of the mixture changed to orange (Pt) or dark red (Ni). are monoclinic, space group P2,/c, with four molecules in a unit Addi ...
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.