Galactic Winds Sylvain Veilleux
... manifestation of the generation of vast fluxes of energy by processes which are not yet properly understood.’ This comment echoed the discovery of the first quasar in 1962, and the slow realization that many extragalactic radio sources must be enormously energetic, powered by processes that could on ...
... manifestation of the generation of vast fluxes of energy by processes which are not yet properly understood.’ This comment echoed the discovery of the first quasar in 1962, and the slow realization that many extragalactic radio sources must be enormously energetic, powered by processes that could on ...
3011800000810
... allow for both a low-mass X-ray binary (LMXB) and an HMXB system scenario (based only on the brightness of the counterpart). The candidate suggested by D’Amico et al. (2006) was observed during source quiescence; based on the lack of variability in the light curve of this putative counterpart, D’Ami ...
... allow for both a low-mass X-ray binary (LMXB) and an HMXB system scenario (based only on the brightness of the counterpart). The candidate suggested by D’Amico et al. (2006) was observed during source quiescence; based on the lack of variability in the light curve of this putative counterpart, D’Ami ...
Fluorescence of coumarins and xanthenes after two
... laser was used as a light source. Stimulated emission from the first excited state S1 to a highly excited vibrational level of the ground state S0 was believed to be responsible. A similar behavior was also observed for Rhodamines by Bradley et al.5 and Hermann and Ducuing6 at ruby and neodymium fre ...
... laser was used as a light source. Stimulated emission from the first excited state S1 to a highly excited vibrational level of the ground state S0 was believed to be responsible. A similar behavior was also observed for Rhodamines by Bradley et al.5 and Hermann and Ducuing6 at ruby and neodymium fre ...
Catalogs of Hot White Dwarfs in the Milky Way from GALEX`s
... synthesized nuclear products (mainly He, C, N, and possibly O), to different extents, depending on the initial stellar mass and exact evolutionary path (e.g. Marigo 2001, Karakas 2010). Intermediate mass stars are the main providers of carbon and nitrogen, whereas low-mass stars are the most relevan ...
... synthesized nuclear products (mainly He, C, N, and possibly O), to different extents, depending on the initial stellar mass and exact evolutionary path (e.g. Marigo 2001, Karakas 2010). Intermediate mass stars are the main providers of carbon and nitrogen, whereas low-mass stars are the most relevan ...
ExoPlanet News No. 74, November 3rd, 2014 Contents An Electronic Newsletter
... We report on a search for this companion with Sparse Aperture Mask imaging and direct imaging with both the UT4 VLT and Keck telescopes. Radial velocity measurements of J1407 provide additional constraints on J1407b and on short period companions to the central star. Follow-up photometric monitoring ...
... We report on a search for this companion with Sparse Aperture Mask imaging and direct imaging with both the UT4 VLT and Keck telescopes. Radial velocity measurements of J1407 provide additional constraints on J1407b and on short period companions to the central star. Follow-up photometric monitoring ...
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... obtained from the FAST satellite at Earth during the interval of interest. This is followed ...
... obtained from the FAST satellite at Earth during the interval of interest. This is followed ...
Gigahertz frequency comb offset stabilization
... tellurite glasses, Si3N4 has the additional benefit of being compatible with the complementary metal-oxide-semiconductor (CMOS) fabrication techniques, which are widely used in industry. Compact and robust Si3N4 waveguides can be produced at low costs on wafer scale using standard deposition and lit ...
... tellurite glasses, Si3N4 has the additional benefit of being compatible with the complementary metal-oxide-semiconductor (CMOS) fabrication techniques, which are widely used in industry. Compact and robust Si3N4 waveguides can be produced at low costs on wafer scale using standard deposition and lit ...
Cold versus Warm Dark Matter Simulations of a Galaxy Group
... local overdensities in an adaptively smoothed density field as prospective halo centres. The potential minimum of each density peak is then calculated; bound particles are then associated with possible haloes. In the WDM simulation, discreteness effects which can cause haloes below a specific limit ...
... local overdensities in an adaptively smoothed density field as prospective halo centres. The potential minimum of each density peak is then calculated; bound particles are then associated with possible haloes. In the WDM simulation, discreteness effects which can cause haloes below a specific limit ...
Total internal reflection holography for optical interconnections
... reference wave, a reflection grating from the object waves and the TIR reference wave, and a Lippmann grating from the incident reference wave and the TIR reference wave. The polarization of the recording waves is also an important parameter. The use of p-polarization has the advantage ofproducing o ...
... reference wave, a reflection grating from the object waves and the TIR reference wave, and a Lippmann grating from the incident reference wave and the TIR reference wave. The polarization of the recording waves is also an important parameter. The use of p-polarization has the advantage ofproducing o ...
List of Preprints Contents
... fourteen optical telescopes with diameters up to 3.6 m and a 15-m submillimetre radio telescope (SEST) are now in operation. The 3.5-m New Technology Telescope (NTT) became operational in 1990, and a giant telescope (VLT = Very Large Telescope), consisting of four 8-m telescopes (equivalent aperture ...
... fourteen optical telescopes with diameters up to 3.6 m and a 15-m submillimetre radio telescope (SEST) are now in operation. The 3.5-m New Technology Telescope (NTT) became operational in 1990, and a giant telescope (VLT = Very Large Telescope), consisting of four 8-m telescopes (equivalent aperture ...
Soleil-Babinet Compensator
... The Soleil-Babinet Compensator is a continuously variable, zero-order retarder (waveplate) which operates over a broad wavelength range. The classical design of the compensator consists of a long birefringent wedge and a fixed wedge mounted Polarization Optics to a compensator plate. The retardance ...
... The Soleil-Babinet Compensator is a continuously variable, zero-order retarder (waveplate) which operates over a broad wavelength range. The classical design of the compensator consists of a long birefringent wedge and a fixed wedge mounted Polarization Optics to a compensator plate. The retardance ...
Star Formation in the Orion Nebula II: Gas, Dust, Proplyds and
... stars not optically visible because of the high extinction caused by these objects falling within the PDR or the molecular cloud. In Sect. 5 we consider the outflows encountered, which range from microjets with scales of hundreds of astronomical units to large scale outflows with scales of parsecs. ...
... stars not optically visible because of the high extinction caused by these objects falling within the PDR or the molecular cloud. In Sect. 5 we consider the outflows encountered, which range from microjets with scales of hundreds of astronomical units to large scale outflows with scales of parsecs. ...
Open access
... the source, suggesting that the blend is likely to be the lens. Although we find planetary signals for none of events, we provide exclusion diagrams showing the confidence levels excluding the existence of a planet as a function of the separation and mass ratio. ...
... the source, suggesting that the blend is likely to be the lens. Although we find planetary signals for none of events, we provide exclusion diagrams showing the confidence levels excluding the existence of a planet as a function of the separation and mass ratio. ...
Quantum heating of a parametrically modulated oscillator: Spectral signatures M. Marthaler,
... in vibrational systems. It makes the energy levels nonequidistant and the frequencies of different interlevel transitions different, which in turn enables spectroscopic observation of the quantum energy levels. In addition, nonlinearity leads to an interesting behavior of vibrational systems in exte ...
... in vibrational systems. It makes the energy levels nonequidistant and the frequencies of different interlevel transitions different, which in turn enables spectroscopic observation of the quantum energy levels. In addition, nonlinearity leads to an interesting behavior of vibrational systems in exte ...
A numerical study of recent tidal interactions between dwarf galaxies
... These simulations demonstrated that the presence of a Milky Way-like dark matter halo has an influence on the evolution of the dwarf galaxies. In all studies tidal stripping and tidal tails were observed. These interactions also led to star formation bursts in the dwarf galaxies. And there was stat ...
... These simulations demonstrated that the presence of a Milky Way-like dark matter halo has an influence on the evolution of the dwarf galaxies. In all studies tidal stripping and tidal tails were observed. These interactions also led to star formation bursts in the dwarf galaxies. And there was stat ...
"The Pulsar Menagerie" (pdf file)
... The Pulsar Menagerie The lighthouses of the universe take on countless guises, as astronomers have learned to their ongoing delight during the last 4 decades When pulsars spun their way into astronomical lore in 1967, their debut was hardly glamorous. The radio telescope that found them was not a ph ...
... The Pulsar Menagerie The lighthouses of the universe take on countless guises, as astronomers have learned to their ongoing delight during the last 4 decades When pulsars spun their way into astronomical lore in 1967, their debut was hardly glamorous. The radio telescope that found them was not a ph ...
Origin and Evolution of Neutron Star Magnetic Fields - if
... Neutron stars with young, high-mass companions (“high-mass X-ray binaries” or HMXBs) tend to appear as X-ray pulsars, in which the accreted material is presumably channelled by the magnetic field onto the polar caps. In some cases, cyclotron features have been found in the X-ray spectrum, correspondi ...
... Neutron stars with young, high-mass companions (“high-mass X-ray binaries” or HMXBs) tend to appear as X-ray pulsars, in which the accreted material is presumably channelled by the magnetic field onto the polar caps. In some cases, cyclotron features have been found in the X-ray spectrum, correspondi ...
1 Scientific and applied rationales of remote sensing study
... accordance with classical electromagnetic Maxwell theory, the energy of radiation propagates as electromagnetic waves and, in accordance with the quantummechanical approach, as separate, discrete quanta. These approaches are both equally applied in remote sensing problems. So, electromagnetic theory ...
... accordance with classical electromagnetic Maxwell theory, the energy of radiation propagates as electromagnetic waves and, in accordance with the quantummechanical approach, as separate, discrete quanta. These approaches are both equally applied in remote sensing problems. So, electromagnetic theory ...
Handbook of Optical Filters for Fluorescence Microscopy
... reduced by processes known as quenching, one of which is photobleaching. The combination of these factors, in addition to the fact that many specimens have very small amounts of stained material in the observed field of view, gives a ratio of emitted fluorescence intensity to excitation light intens ...
... reduced by processes known as quenching, one of which is photobleaching. The combination of these factors, in addition to the fact that many specimens have very small amounts of stained material in the observed field of view, gives a ratio of emitted fluorescence intensity to excitation light intens ...
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.