Chapter 2.1 - Focusing Fundamentals
... have plenty of light to work with while you focus, and so does the automatic focuser found in most of today’s cameras. Professional film cameras allow you to focus by looking at a ground glass screen that is conveniently located exactly the same distance from the camera lens as the film. The scene i ...
... have plenty of light to work with while you focus, and so does the automatic focuser found in most of today’s cameras. Professional film cameras allow you to focus by looking at a ground glass screen that is conveniently located exactly the same distance from the camera lens as the film. The scene i ...
Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants
... dwarfs indicates that significant accretion of solid metal-rich material onto the planet-hosting stars has not taken place, as such material would be diluted in the evolution from dwarf to subgiant. The lower metallicity found for the planethosting giant stars in comparison with the planet-hosting d ...
... dwarfs indicates that significant accretion of solid metal-rich material onto the planet-hosting stars has not taken place, as such material would be diluted in the evolution from dwarf to subgiant. The lower metallicity found for the planethosting giant stars in comparison with the planet-hosting d ...
PCCPwww
... these catalysts the structure of the active sites is rather complex, needing often the interplay between two adjacent copper centres to operate. Copper(I) exchanged zeolites can be considered as the best known type of inorganic tri-dimensionally organized catalysts, because of their crystalline stru ...
... these catalysts the structure of the active sites is rather complex, needing often the interplay between two adjacent copper centres to operate. Copper(I) exchanged zeolites can be considered as the best known type of inorganic tri-dimensionally organized catalysts, because of their crystalline stru ...
Sky Quality Meter measurements in a colour changing world
... infrared cutoff filter, provides a final spectral response overlapping the Johnson B and V bands used in astronomical photometry (wavelength range from 320 to 720 nm, Johnson & Morgan (1953)). Although it is very user friendly (aim the photometer to the zenith, push the button, and read the data on ...
... infrared cutoff filter, provides a final spectral response overlapping the Johnson B and V bands used in astronomical photometry (wavelength range from 320 to 720 nm, Johnson & Morgan (1953)). Although it is very user friendly (aim the photometer to the zenith, push the button, and read the data on ...
Radiative properties of cirrus clouds in the
... Earth’s radiation energy budget [1–3] because of their large spatial coverage and temporal persistence. And yet, the radiative forcing of these clouds is far from being well understood because of the wide range of observed cirrus cloud properties such as height, optical thickness, particle size, and ...
... Earth’s radiation energy budget [1–3] because of their large spatial coverage and temporal persistence. And yet, the radiative forcing of these clouds is far from being well understood because of the wide range of observed cirrus cloud properties such as height, optical thickness, particle size, and ...
Advanced Applications
... Dichroic Atomic Vapor Spectroscopy (DAVS) utilizes the Zeeman effect to create a signal suitable for laser locking. A Rubidium or Potassium vapor cell is placed in a weak longitudinal magnetic field. Laser light travels through a Glan-Taylor Polarizer prior to entering the vapor cell, thereby ensuri ...
... Dichroic Atomic Vapor Spectroscopy (DAVS) utilizes the Zeeman effect to create a signal suitable for laser locking. A Rubidium or Potassium vapor cell is placed in a weak longitudinal magnetic field. Laser light travels through a Glan-Taylor Polarizer prior to entering the vapor cell, thereby ensuri ...
The effects of galaxy interactions on star formation
... the research that has gone into this dissertation. First, my advisor Curt Struck has provided invaluable direction, suggestions, and feedback over the course of the all the projects that are collected here. I am also increasingly grateful for the timeliness of his advice. For assistance on the star ...
... the research that has gone into this dissertation. First, my advisor Curt Struck has provided invaluable direction, suggestions, and feedback over the course of the all the projects that are collected here. I am also increasingly grateful for the timeliness of his advice. For assistance on the star ...
Sample pages 1 PDF
... The objective lens consists of two or more lens elements in an achromatic or apochromatic configuration. The achromatic doublet is the commonest lens in “standard” binoculars, but high-quality binoculars, particularly large astronomical binoculars, may have an apochromatic triplet. There may also be ...
... The objective lens consists of two or more lens elements in an achromatic or apochromatic configuration. The achromatic doublet is the commonest lens in “standard” binoculars, but high-quality binoculars, particularly large astronomical binoculars, may have an apochromatic triplet. There may also be ...
The Four-Quadrant Phase-Mask Coronagraph. I. Principle
... ABSTRACT. We describe a new type of coronagraph, based on the principle of a phase mask as proposed by Roddier and Roddier a few years ago but using an original mask design found by one of us (D. R.), a four-quadrant binary phase mask (0, n) covering the full Ðeld of view at the focal plane. The mut ...
... ABSTRACT. We describe a new type of coronagraph, based on the principle of a phase mask as proposed by Roddier and Roddier a few years ago but using an original mask design found by one of us (D. R.), a four-quadrant binary phase mask (0, n) covering the full Ðeld of view at the focal plane. The mut ...
PDF
... ranging from 100nm to 590nm with a 10nm variation. The spectral scans are obtained by employing an Agilent lightwave measurements system 8164B with integrated tunable laser source and photoreceiver. All scans have been taken with a spectral resolution of 60MHz . Light is subsequently processed by a ...
... ranging from 100nm to 590nm with a 10nm variation. The spectral scans are obtained by employing an Agilent lightwave measurements system 8164B with integrated tunable laser source and photoreceiver. All scans have been taken with a spectral resolution of 60MHz . Light is subsequently processed by a ...
Effects of color superconductivity on the nucleation of quark matter in
... However, quantum fluctuations can form the so called Q*phase bubbles, in which the flavor content of the quark phase is equal to that of the β-stable hadronic system at the same pressure. Since no flavor conversion is involved, there are no suppressing Fermi factors, and a Q*-phase drop can be nucle ...
... However, quantum fluctuations can form the so called Q*phase bubbles, in which the flavor content of the quark phase is equal to that of the β-stable hadronic system at the same pressure. Since no flavor conversion is involved, there are no suppressing Fermi factors, and a Q*-phase drop can be nucle ...
Radiative transfer in ocean turbulence and its effect on underwater
... Figure 1. Schematics of the turbulent shear flow in the upper ocean considered in the present study. the propagation of a partially coherent beam in oceanic turbulence and illustrated the dependence of the normalized root-mean-square (RMS) width of the beam on turbulence. Korotkova and Farwell [2011 ...
... Figure 1. Schematics of the turbulent shear flow in the upper ocean considered in the present study. the propagation of a partially coherent beam in oceanic turbulence and illustrated the dependence of the normalized root-mean-square (RMS) width of the beam on turbulence. Korotkova and Farwell [2011 ...
The Kolob Theorem
... Joseph Smith, page 361). NASA's COBE satellite scanned the heavens at infrared wavelengths in 1990 and produced this premier view of the central region of our own Milky Way Galaxy. The Milky Way is a typical spiral galaxy with a central bulge and extended disk of stars. However, gas and dust within ...
... Joseph Smith, page 361). NASA's COBE satellite scanned the heavens at infrared wavelengths in 1990 and produced this premier view of the central region of our own Milky Way Galaxy. The Milky Way is a typical spiral galaxy with a central bulge and extended disk of stars. However, gas and dust within ...
Advanced Topics in Cosmology: A Pedagogical Introduction
... (3) Host of observations related to large scale structure and dynamics (rotation curves of galaxies, estimate of cluster masses, gravitational lensing, galaxy surveys ..) all suggest[4] that the universe is populated by a non-luminous component of matter (dark matter; DM hereafter) made of weakly in ...
... (3) Host of observations related to large scale structure and dynamics (rotation curves of galaxies, estimate of cluster masses, gravitational lensing, galaxy surveys ..) all suggest[4] that the universe is populated by a non-luminous component of matter (dark matter; DM hereafter) made of weakly in ...
The Northern Arc of epsilon Eridani`s Debris Ring as Seen by ALMA
... MCMC runs: run A, which is constrained to be a narrow belt (with Rin > 57 AU), and run B, which is a wide belt (Rin < 57 AU) with a steeply rising profile (γ > 3). The rising slope of the latter run could indicate a low-level effect of drag forces on the grains as in the model of Reidemeister et al. ...
... MCMC runs: run A, which is constrained to be a narrow belt (with Rin > 57 AU), and run B, which is a wide belt (Rin < 57 AU) with a steeply rising profile (γ > 3). The rising slope of the latter run could indicate a low-level effect of drag forces on the grains as in the model of Reidemeister et al. ...
The uniqueness of Antarctica for the study of AGB stars
... Antarctica will allow us also to study stars in the final phases of their evolution from all the Dwarf Spheroidal Satellites of the Milky Way, at very different metallicities. (For the dSphs we could observe at least the giants at the tip of the RGB phase). ...
... Antarctica will allow us also to study stars in the final phases of their evolution from all the Dwarf Spheroidal Satellites of the Milky Way, at very different metallicities. (For the dSphs we could observe at least the giants at the tip of the RGB phase). ...
UvA-DARE (Digital Academic Repository)
... massive enough, they continue to grow further by pulling in gas from the surrounding disk, forming giant planets in what is known as the core-accretion scenario (Pollack et al. 1996). This whole process spans around 40 orders of magnitude in mass or 13 orders of magnitude in radius (Figure 1.5), and ...
... massive enough, they continue to grow further by pulling in gas from the surrounding disk, forming giant planets in what is known as the core-accretion scenario (Pollack et al. 1996). This whole process spans around 40 orders of magnitude in mass or 13 orders of magnitude in radius (Figure 1.5), and ...
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.