Construction of a 408 nm Laser System for Use in Ion Interferometry
... through space. The output of the interferometer will give information about the relative phase shift acquired by the ions as they travel along each of the arms of the interferometer. ...
... through space. The output of the interferometer will give information about the relative phase shift acquired by the ions as they travel along each of the arms of the interferometer. ...
MERCURY In-flight calibration of the PHEBUS UV instrument and
... annoy the Earth-bound scientist with its weirdities, to its own pleasure. Yes, Mercury is extreme, mostly unexplored and very, very appealing. For as long as humans have looked to the sky, Mercury, despite its closeness to Earth, has always been neglected. This is understandable since it is drowned ...
... annoy the Earth-bound scientist with its weirdities, to its own pleasure. Yes, Mercury is extreme, mostly unexplored and very, very appealing. For as long as humans have looked to the sky, Mercury, despite its closeness to Earth, has always been neglected. This is understandable since it is drowned ...
i.3. - adaptive optics overview
... NICMOS extends the Hubble Space Telescope's UV/Optical panchromatic vision into the NIR fulfilling a Level-1 requirement of the HST mission. With NIR light we can see into regions, which are obscured at visible and ultra-violet (UV) wavelengths. Dust, which is pervasive and prevalent in many forms t ...
... NICMOS extends the Hubble Space Telescope's UV/Optical panchromatic vision into the NIR fulfilling a Level-1 requirement of the HST mission. With NIR light we can see into regions, which are obscured at visible and ultra-violet (UV) wavelengths. Dust, which is pervasive and prevalent in many forms t ...
Physics Research A
... Npe Fig. 3. Simulated distribution of total number of photoelectrons N pe from Cherenkov detector for pions at 960 MeV=c with two different sets of aerogel absorption lengths and scattering lengths presented in Table 1. Solid line represents simulation results with parameters Lsc;1 and Labs;1 and da ...
... Npe Fig. 3. Simulated distribution of total number of photoelectrons N pe from Cherenkov detector for pions at 960 MeV=c with two different sets of aerogel absorption lengths and scattering lengths presented in Table 1. Solid line represents simulation results with parameters Lsc;1 and Labs;1 and da ...
sensors Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy
... still possible. More so, specialty fibers are available for the mid-infrared region that have absorption losses of less than 0.5–0.2 dB/m and make experiments at wavelength up to 9 μm possible. To date no research group has taken full advantage of the broadband properties of the fiber loop, but it m ...
... still possible. More so, specialty fibers are available for the mid-infrared region that have absorption losses of less than 0.5–0.2 dB/m and make experiments at wavelength up to 9 μm possible. To date no research group has taken full advantage of the broadband properties of the fiber loop, but it m ...
grav1to11 (102 slides)
... C1.1.3 Dynamics as a tool • Infer additional/dark matter – E.g., Weakly Interacting Massive Particles • proton mass, but much less interactive • Suggested by Super-Symmetry, but undetected ...
... C1.1.3 Dynamics as a tool • Infer additional/dark matter – E.g., Weakly Interacting Massive Particles • proton mass, but much less interactive • Suggested by Super-Symmetry, but undetected ...
ultraviolet radiation in the solar system
... In the history of science the opening up of a new observational or experimental window is always followed by an increase in knowledge of the subject concerned. This is also the case with the subject of this book, ultraviolet radiation (hereafter UV). In principle, the ultraviolet range might be just ...
... In the history of science the opening up of a new observational or experimental window is always followed by an increase in knowledge of the subject concerned. This is also the case with the subject of this book, ultraviolet radiation (hereafter UV). In principle, the ultraviolet range might be just ...
Episode 1: “Standing Up in the Milky Way”
... NEIL (V.O.) We may just be little guys, living on a speck of dust afloat in a staggering immensity, but we don't think small. This cosmic perspective is relatively new. A mere four centuries ago our tiny world was oblivious to the rest of the cosmos. There were no telescopes. The universe was only w ...
... NEIL (V.O.) We may just be little guys, living on a speck of dust afloat in a staggering immensity, but we don't think small. This cosmic perspective is relatively new. A mere four centuries ago our tiny world was oblivious to the rest of the cosmos. There were no telescopes. The universe was only w ...
Molecular Cloud Turbulence and Star Formation. Ballesteros
... three dimensions suggest that the standard deviation of the logarithm of the density fluctuations σlog ρ scales with the logarithm of the Mach number (Padoan et al., 1997a; Mac Low et al., 2005). Similar features appear to persist in the isothermal, ideal MHD case (Ostriker et al., 1999; 2001; Falle ...
... three dimensions suggest that the standard deviation of the logarithm of the density fluctuations σlog ρ scales with the logarithm of the Mach number (Padoan et al., 1997a; Mac Low et al., 2005). Similar features appear to persist in the isothermal, ideal MHD case (Ostriker et al., 1999; 2001; Falle ...
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... are better donors than less polar substituents such as alcohols. As the lanthanide-ligand coordination is predominantly ionic in nature, negatively charged donor groups such as carboxylates, phosphonates and phosphinates are highly suitable. ...
... are better donors than less polar substituents such as alcohols. As the lanthanide-ligand coordination is predominantly ionic in nature, negatively charged donor groups such as carboxylates, phosphonates and phosphinates are highly suitable. ...
Light amplificated by stimulated emission of radiation
... Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some cases, the polarization state of the pump light is also important. Some nonisotropic gain media, such as Nd:YVO4, exhibit very different levels of a ...
... Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some cases, the polarization state of the pump light is also important. Some nonisotropic gain media, such as Nd:YVO4, exhibit very different levels of a ...
Comet Kirch in Art and Astronomy
... reached its perihelion on 8th of December 1680 (18th December) passing at a distance of 0,0062 AU (around 930000 km) from the Sun, and its closest approach to the Earth was on 20th of November (30th November N. S.) of 0,42 AU. The Kirch Comet was visible with naked eye before sunrise and after sunse ...
... reached its perihelion on 8th of December 1680 (18th December) passing at a distance of 0,0062 AU (around 930000 km) from the Sun, and its closest approach to the Earth was on 20th of November (30th November N. S.) of 0,42 AU. The Kirch Comet was visible with naked eye before sunrise and after sunse ...
Cr 6+ ions
... The doping of yttrium-aluminum garnet (YAG) was carried out during its formation from the stoichiometric mixture of oxide yttrium and oxide aluminium under hydrothermal and thermovaporous treatment in the temperature range 200 – 400°C and under pressures of water vapor 4.0 - 26 MPa. It was found tha ...
... The doping of yttrium-aluminum garnet (YAG) was carried out during its formation from the stoichiometric mixture of oxide yttrium and oxide aluminium under hydrothermal and thermovaporous treatment in the temperature range 200 – 400°C and under pressures of water vapor 4.0 - 26 MPa. It was found tha ...
The effect of helium sedimentation on galaxy cluster masses and
... Sunyaev-Zel’dovich effect (SZE) may be used to infer the helium abundance in the ICM (Markevitch 2007); however, the limited resolution and sensitivity of current SZE interferometers have so far not enabled the measurement of the distribution of helium, even in the cluster cores where the sedimentati ...
... Sunyaev-Zel’dovich effect (SZE) may be used to infer the helium abundance in the ICM (Markevitch 2007); however, the limited resolution and sensitivity of current SZE interferometers have so far not enabled the measurement of the distribution of helium, even in the cluster cores where the sedimentati ...
Accreting Neutron Stars: Strong Gravity and Type I Bursts
... and burst oscillations. While the previous list was meant to provide a motivation for, and an idea of, the enormous and diverse efforts dedicated to collecting information about such stars, these three latter techniques will be described at the end of each of the following sections, since we want to ...
... and burst oscillations. While the previous list was meant to provide a motivation for, and an idea of, the enormous and diverse efforts dedicated to collecting information about such stars, these three latter techniques will be described at the end of each of the following sections, since we want to ...
Three case studies in spectroscopic mode identification of non-radially pulsating stars Florian Maisonneuve
... Gravity modes present in γ Doradus stars probe the deep stellar interiors and are thus of particular interest in asteroseismology. Mode identification will improve the knowledge of these stars considerably and allow an understanding of the issues with current pulsational models. The methods used in ...
... Gravity modes present in γ Doradus stars probe the deep stellar interiors and are thus of particular interest in asteroseismology. Mode identification will improve the knowledge of these stars considerably and allow an understanding of the issues with current pulsational models. The methods used in ...
White dwarf dynamical interactions and fast optical transients
... double white dwarf binary system where the components are brought together by gravitational wave radiation, or it could be triggered by a stellar close encounter, perhaps prompted by Kozai oscillations in a triple system (Thompson 2011; Katz & Dong 2012; Antognini et al. 2014) — see Sect. 2. In eith ...
... double white dwarf binary system where the components are brought together by gravitational wave radiation, or it could be triggered by a stellar close encounter, perhaps prompted by Kozai oscillations in a triple system (Thompson 2011; Katz & Dong 2012; Antognini et al. 2014) — see Sect. 2. In eith ...
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.