Chemical gradients in the Milky Way from the RAVE data
... are not equal: at Zmax < 0.4 kpc and 4.5 < Rg (kpc) < 9.5, the iron gradient for the RAVE sample is d[Fe/H]/dRg = −0.065 dex kpc−1 , whereas for the GCS sample it is d[Fe/H]/dRg = −0.043 dex kpc−1 with internal errors of ±0.002 and ±0.004 dex kpc−1 , respectively. The gradients of the RAVE and GCS s ...
... are not equal: at Zmax < 0.4 kpc and 4.5 < Rg (kpc) < 9.5, the iron gradient for the RAVE sample is d[Fe/H]/dRg = −0.065 dex kpc−1 , whereas for the GCS sample it is d[Fe/H]/dRg = −0.043 dex kpc−1 with internal errors of ±0.002 and ±0.004 dex kpc−1 , respectively. The gradients of the RAVE and GCS s ...
Theory of the transmission properties of an optical far-field superlens
... are transmitted through the order 0 with smaller amplitude. As a result, whereas the near-field angular spectrum radiated by an object contains both propagating and evanescent waves, the main contribution of waves transmitted into the far field through the superlens grating comes from the incident e ...
... are transmitted through the order 0 with smaller amplitude. As a result, whereas the near-field angular spectrum radiated by an object contains both propagating and evanescent waves, the main contribution of waves transmitted into the far field through the superlens grating comes from the incident e ...
Part 2 . Physical Optics
... summarized in Table 1. For conditions between these values, an intermediate value of the intensity results. Since both the OPD and the phase difference increase with the integer m , the absolute value of m is called the order of interference. As we move from one bright fringe to an adjacent bright f ...
... summarized in Table 1. For conditions between these values, an intermediate value of the intensity results. Since both the OPD and the phase difference increase with the integer m , the absolute value of m is called the order of interference. As we move from one bright fringe to an adjacent bright f ...
The Theory of the Rainbow
... cartes painstakingly computed the paths of many rays incident at many impact parameters. The rays of Class 3 are of predominating importance. When the impact parameter is zero. these rays are scattered through an angle of 180 de grees. that is. they are backscattered toward the sun. having passed t ...
... cartes painstakingly computed the paths of many rays incident at many impact parameters. The rays of Class 3 are of predominating importance. When the impact parameter is zero. these rays are scattered through an angle of 180 de grees. that is. they are backscattered toward the sun. having passed t ...
EXPLORING STELLAR EVOLUTION MODELS OF sdB STARS
... sdB stars are hot (Teff = 20,000–40,000 K) and compact (log g = 5.0–6.2) stars that are found in all stellar populations of our own Galaxy as well as in other old galaxies. Located on the extreme horizontal branch (EHB), they are understood to be helium burning objects with very thin hydrogen envelo ...
... sdB stars are hot (Teff = 20,000–40,000 K) and compact (log g = 5.0–6.2) stars that are found in all stellar populations of our own Galaxy as well as in other old galaxies. Located on the extreme horizontal branch (EHB), they are understood to be helium burning objects with very thin hydrogen envelo ...
5 The Basics of Confocal Microscopy
... and a beam scanning assembly. In most advanced systems, integration between the various components is so thorough that the entire confocal microscope is often collectively referred to as a digital or video imaging, capable of producing electronic images. These microscopes are now being employed for ...
... and a beam scanning assembly. In most advanced systems, integration between the various components is so thorough that the entire confocal microscope is often collectively referred to as a digital or video imaging, capable of producing electronic images. These microscopes are now being employed for ...
Stellar Intensity Interferometry: The Background John Davis Sydney Institute for Astronomy
... stars”. Robert Hanbury Brown (RHB) was determined to measure them • If these sources were galaxies their angular sizes would be of the order of a minute of arc and easy to measure with a conventional interferometer but, if they were stars, extremely long baselines would be needed and RHB concluded ...
... stars”. Robert Hanbury Brown (RHB) was determined to measure them • If these sources were galaxies their angular sizes would be of the order of a minute of arc and easy to measure with a conventional interferometer but, if they were stars, extremely long baselines would be needed and RHB concluded ...
... Therefore when a black hole radiates it loses its mass, it evaporates and eventually disappears, and this fact will lead us to the information loss problem. Following an heuristic picture, Hawking radiation is produced by vacuum quantum fluctuations around the black hole where the gravitational field ...
CMB Angular Power Spectra and Cosmological BOOMERANG Telescope
... Thanks to the entire BOOMERANG Antarctic field team for being part of the experience of a lifetime; particularly to Barth Netterfield, Francesco Piacentini, Ted Kisner, Bill Jones, Enzo Pascale, Tom Montroy and Brendan Crill. It was an honour to work with Brendan Crill, Tom Montroy, Carlo Contaldi a ...
... Thanks to the entire BOOMERANG Antarctic field team for being part of the experience of a lifetime; particularly to Barth Netterfield, Francesco Piacentini, Ted Kisner, Bill Jones, Enzo Pascale, Tom Montroy and Brendan Crill. It was an honour to work with Brendan Crill, Tom Montroy, Carlo Contaldi a ...
Galactic Evolution of Silicon Isotopes: Applications to
... nucleosynthesis products of a single star. The name STARDUST has been suggested for high-quality single grains grown in stellar winds, to distinguish them from other anomalous samples, and a related name, SUNOCON, labels supernova condensates grown in the ejecta before it is mixed with the ISM (Clay ...
... nucleosynthesis products of a single star. The name STARDUST has been suggested for high-quality single grains grown in stellar winds, to distinguish them from other anomalous samples, and a related name, SUNOCON, labels supernova condensates grown in the ejecta before it is mixed with the ISM (Clay ...
Euclid - at www.arxiv.org.
... The Assessment Phase of Euclid, which preceded Phase A, showed that the Euclid science and mission concept are feasible and could meet the M Class mission requirements. However, the study also showed that a serious optimisation of the mission was necessary to stay within the programmatic constraints ...
... The Assessment Phase of Euclid, which preceded Phase A, showed that the Euclid science and mission concept are feasible and could meet the M Class mission requirements. However, the study also showed that a serious optimisation of the mission was necessary to stay within the programmatic constraints ...
Wavelength Conversion Using Reconfigurable Photonic
... onto integrated circuits”, Moore predicted that number of transistors on an integrated circuit (IC) would double every 18 months. In this paper, which was written back in 1965, he said that “Integrated electronics will make electronic techniques more generally available throughout all of society, pe ...
... onto integrated circuits”, Moore predicted that number of transistors on an integrated circuit (IC) would double every 18 months. In this paper, which was written back in 1965, he said that “Integrated electronics will make electronic techniques more generally available throughout all of society, pe ...
Watson et al. 2007a - Department of Physics and Astronomy
... We detect silicate and silica emission features from an optically-thin layer of dust on the nearer surface of the disk’s dust component, heated by starlight to temperatures higher than the opaque disk beneath. That the layer is optically thin, and the emission thermal in origin, means that an emissi ...
... We detect silicate and silica emission features from an optically-thin layer of dust on the nearer surface of the disk’s dust component, heated by starlight to temperatures higher than the opaque disk beneath. That the layer is optically thin, and the emission thermal in origin, means that an emissi ...
Molecular Cloud Evolution II. From cloud formation to the early
... produced by the dynamical instability (which they termed “Rayleigh-Taylor-like”) were able to accrete mass until they became gravitationally unstable and collapse. However, this study was designed to investigate flows within MCs rather than the formation of the clouds themselves, and so it considere ...
... produced by the dynamical instability (which they termed “Rayleigh-Taylor-like”) were able to accrete mass until they became gravitationally unstable and collapse. However, this study was designed to investigate flows within MCs rather than the formation of the clouds themselves, and so it considere ...
X-ray binaries in the Milky Way and other galaxies
... 6.1. Universal HMXB Luminosity Function ? . . . . . . . . . . . . . . . . . . . 6.2. High Luminosity cut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3. Total X-ray luminosity as SFR indicator . . . . . . . . . . . . . . . . . . . 6.4. Theoretical LX –SFR relation . . . . . . . . . ...
... 6.1. Universal HMXB Luminosity Function ? . . . . . . . . . . . . . . . . . . . 6.2. High Luminosity cut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3. Total X-ray luminosity as SFR indicator . . . . . . . . . . . . . . . . . . . 6.4. Theoretical LX –SFR relation . . . . . . . . . ...
SO2 DETECTION USING PLASMON DAMPING By ELI KASA
... apparent, over the years, that SOx adversely deteriorate the performance of catalytic converters by reducing catalyst efficiency and competing with other emission species in chemical reactions, which otherwise convert exhaust NOx, PM and CO into nontoxic compounds [20-23]. SOx are also the precursor ...
... apparent, over the years, that SOx adversely deteriorate the performance of catalytic converters by reducing catalyst efficiency and competing with other emission species in chemical reactions, which otherwise convert exhaust NOx, PM and CO into nontoxic compounds [20-23]. SOx are also the precursor ...
the article as PDF - Project VS
... The O−C diagram of WZ And (upper part), where the solid line represents the theoretical LITE variation caused by a 3rd body and the O-C residuals obtained after the subtraction of LITE (lower part). For details, please refer to (Zasche, Liakos et al., 2009) ...
... The O−C diagram of WZ And (upper part), where the solid line represents the theoretical LITE variation caused by a 3rd body and the O-C residuals obtained after the subtraction of LITE (lower part). For details, please refer to (Zasche, Liakos et al., 2009) ...
Micro-Displacement Sensor Based on a Hollow
... Monitoring of displacement changes is of practical interest for areas such as aeronautics, metallurgy, and health monitoring of complex structures, among others. With this purpose, several types of displacement sensors were developed based on fiber-optic techniques due to the known advantages of thi ...
... Monitoring of displacement changes is of practical interest for areas such as aeronautics, metallurgy, and health monitoring of complex structures, among others. With this purpose, several types of displacement sensors were developed based on fiber-optic techniques due to the known advantages of thi ...
the entire issue as one large (23
... interstellar extinction by dust than had been realized, Oort surmised that the best way of understanding galactic structure would be to study the motions of the stars and introduced the concept that because of galactic rotation there was a well-defined relationship between the radial velocities, dis ...
... interstellar extinction by dust than had been realized, Oort surmised that the best way of understanding galactic structure would be to study the motions of the stars and introduced the concept that because of galactic rotation there was a well-defined relationship between the radial velocities, dis ...
Observation of the Crab pulsar wind nebula and microquasar Ph.D. Dissertation
... and Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes, have been capable to increase the total number of known VHE emitting sources from a few to almost one hundred in just seven years of operation. This population comprises galactic and extragalactic objects. IACTs have proved to be ...
... and Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes, have been capable to increase the total number of known VHE emitting sources from a few to almost one hundred in just seven years of operation. This population comprises galactic and extragalactic objects. IACTs have proved to be ...
Dynamics of electron solvation in I (CH3OH)n
... weakly-bound surface states with surface methyl groups oriented toward the excess electron, similar to the isomer II structure inferred from our photoelectron spectra.36 With better knowledge of the initial and final states, we reexamine here the dynamics of I− (CH3 OH)n following CTTS excitation wi ...
... weakly-bound surface states with surface methyl groups oriented toward the excess electron, similar to the isomer II structure inferred from our photoelectron spectra.36 With better knowledge of the initial and final states, we reexamine here the dynamics of I− (CH3 OH)n following CTTS excitation wi ...
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.