Moed A
... 5. 6 beam MOT in two reference frames - 10 points A MOT works by optically cooling atoms (via recoil of photon absorption) in a linearly inhomogeneous magnetic field B = B(z) ≈ Az, such as that formed by a magnetic quadrupole field. While the light, which is red detuned to interact with atoms moving ...
... 5. 6 beam MOT in two reference frames - 10 points A MOT works by optically cooling atoms (via recoil of photon absorption) in a linearly inhomogeneous magnetic field B = B(z) ≈ Az, such as that formed by a magnetic quadrupole field. While the light, which is red detuned to interact with atoms moving ...
The origin of magnetism on the upper main sequence
... In general, simulations of the star formation process have tended to concentrate on the low-mass end of the stellar mass spectrum. This is so even in the most recent computations (Bate 2009b) where some account is taken of radiative feedback, which will be of much greater importance in the process o ...
... In general, simulations of the star formation process have tended to concentrate on the low-mass end of the stellar mass spectrum. This is so even in the most recent computations (Bate 2009b) where some account is taken of radiative feedback, which will be of much greater importance in the process o ...
View/Open - University of Hertfordshire
... where Vrad is the radial velocity of a galaxy, H is the Hubble parameter and d is the distance to the galaxy. Radial velocity measurements have also been instrumental in the discovery of ‘dark matter’, first described in the German paper on the motion of extra-galactic clusters by Zwicky [1933], and ...
... where Vrad is the radial velocity of a galaxy, H is the Hubble parameter and d is the distance to the galaxy. Radial velocity measurements have also been instrumental in the discovery of ‘dark matter’, first described in the German paper on the motion of extra-galactic clusters by Zwicky [1933], and ...
Lecture 11
... Both Sun and Moon affect tides. Size of tides depends on phase of Moon When Sun and Moon are aligned (new moon and full moon) - the tides are higher. ...
... Both Sun and Moon affect tides. Size of tides depends on phase of Moon When Sun and Moon are aligned (new moon and full moon) - the tides are higher. ...
Light Microscopy
... Velocity of light in different media • Index of refraction, n =c/v – C=speed of light in vacuum=3x108 m/s; v= velocity in media ...
... Velocity of light in different media • Index of refraction, n =c/v – C=speed of light in vacuum=3x108 m/s; v= velocity in media ...
THE SUN - OoCities
... The process of energy generation results from the enormous pressure and density at the centre of the Sun, which makes it possible for nuclei to overcome electrostatic repulsion. (Nuclei are positive and thus repel each other.) Once in some billions of years a given proton (1H, in which the superscri ...
... The process of energy generation results from the enormous pressure and density at the centre of the Sun, which makes it possible for nuclei to overcome electrostatic repulsion. (Nuclei are positive and thus repel each other.) Once in some billions of years a given proton (1H, in which the superscri ...
To Be or Not to Be: The Mysteries of Disk Formation Around Rapidly
... Putting the Spin on Be Stars Why are Be stars rotating so quickly? • born with high angular momentum • experiencing a re-distribution of internal angular momentum near the conclusion of core hydrogen burning • received mass and angular momentum through mass transfer from a binary companion (this mu ...
... Putting the Spin on Be Stars Why are Be stars rotating so quickly? • born with high angular momentum • experiencing a re-distribution of internal angular momentum near the conclusion of core hydrogen burning • received mass and angular momentum through mass transfer from a binary companion (this mu ...
HubbleStandardForm
... The ‘three pillars’ of the Eagle Nebula are 2-3 light years tall. The pillar of the ‘Stellar Spire’ is 9.5 light years tall. The speed of light is 300 million ms-1. Pluto orbits at 3.69 109 miles from the Sun. How many times would the diameter of Pluto’s orbit fit into the ...
... The ‘three pillars’ of the Eagle Nebula are 2-3 light years tall. The pillar of the ‘Stellar Spire’ is 9.5 light years tall. The speed of light is 300 million ms-1. Pluto orbits at 3.69 109 miles from the Sun. How many times would the diameter of Pluto’s orbit fit into the ...
Transparencies
... CMB dipole is due to the motion of the Sun. Linear theory of density perturbations is acceptable. The 2MASS has constant mass-to-light ratio and linear bias. ...
... CMB dipole is due to the motion of the Sun. Linear theory of density perturbations is acceptable. The 2MASS has constant mass-to-light ratio and linear bias. ...
Size-dependent energy levels of CdTe quantum dots
... Quantum size effect of semiconductor nanometer size crystals ~nanocrystals! has been one of the targets of extensive research of the optical spectroscopy of semiconductors. Single nanocrystals are ideal for the study of their quantum size effect. Another alternative approach is the site-selective la ...
... Quantum size effect of semiconductor nanometer size crystals ~nanocrystals! has been one of the targets of extensive research of the optical spectroscopy of semiconductors. Single nanocrystals are ideal for the study of their quantum size effect. Another alternative approach is the site-selective la ...
poster
... (Wassell et al. 2006). Thus, while the number of counts is small, this feature is compatible with what we expect from a real knot, which was 3 times brighter in 2011. ...
... (Wassell et al. 2006). Thus, while the number of counts is small, this feature is compatible with what we expect from a real knot, which was 3 times brighter in 2011. ...
Answer Key
... By what approximate factor in scientific notation is a human being (height about 2 m) larger than the nucleus of a hydrogen atom, or proton (diameter about 10-15 m)? Note: A ratio of two like quantities (such as lengths in meters here) is an exception to the rule of always listing the units. Bonus P ...
... By what approximate factor in scientific notation is a human being (height about 2 m) larger than the nucleus of a hydrogen atom, or proton (diameter about 10-15 m)? Note: A ratio of two like quantities (such as lengths in meters here) is an exception to the rule of always listing the units. Bonus P ...
Mike Zellner
... Astrophysics – Many astrophysical systems, such as stars, are comprised of plasmas that emit spectra in the x-ray wavelength. The xray emission can be gathered with a spectrometer connected to a large telescope. By increasing our understanding of plasmas and their emitted line spectra, we will be a ...
... Astrophysics – Many astrophysical systems, such as stars, are comprised of plasmas that emit spectra in the x-ray wavelength. The xray emission can be gathered with a spectrometer connected to a large telescope. By increasing our understanding of plasmas and their emitted line spectra, we will be a ...
Surface plasmon resonance sensing
... pproach was developed by Moharam and Gaylord [20] and is a full vectorial solution of Maxwell's equations. proach is based on the following steps: entation of periodically varying permittivity (for example in a grating structure) using Fourier series expansion: ...
... pproach was developed by Moharam and Gaylord [20] and is a full vectorial solution of Maxwell's equations. proach is based on the following steps: entation of periodically varying permittivity (for example in a grating structure) using Fourier series expansion: ...
File
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
Sun
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
Does the Sun rotate?
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
... Therefore, the magnetic field lines of the Sun become intertwined after several rotations, creating regions of intense magnetic fields and thus producing sunspots and other spectacular features. ...
The DB gap and a new class of pulsating white dwarfs
... of the DB gap are at the transition phase from the radiative atmosphere to the convective one, they are expected to have a superadiabatic layer (i.e., d ln T /d ln p − 1 + −1 > 0), which is nonetheless still convectively stable (i.e., d ln /d ln p > d ln T /d ln p − 1 + −1 ) due to the fact the h ...
... of the DB gap are at the transition phase from the radiative atmosphere to the convective one, they are expected to have a superadiabatic layer (i.e., d ln T /d ln p − 1 + −1 > 0), which is nonetheless still convectively stable (i.e., d ln /d ln p > d ln T /d ln p − 1 + −1 ) due to the fact the h ...
Interference effects Thin film interference Phase
... In thin film interference the phase difference is due to reflection at either side of a thin film of transparent material. • The phase difference is due to two factors: – Path difference through the film (corrected for the change in speed of light in the material) – Phase shift at the inter ...
... In thin film interference the phase difference is due to reflection at either side of a thin film of transparent material. • The phase difference is due to two factors: – Path difference through the film (corrected for the change in speed of light in the material) – Phase shift at the inter ...
Document
... Because light is an oscillating electromagnetic field, it can cause charges to oscillate. If the charge can oscillate in resonance with the field then energy can be absorbed. Alternatively, an oscillating charge can emit radiation with frequency in resonance with the original oscillation. For exampl ...
... Because light is an oscillating electromagnetic field, it can cause charges to oscillate. If the charge can oscillate in resonance with the field then energy can be absorbed. Alternatively, an oscillating charge can emit radiation with frequency in resonance with the original oscillation. For exampl ...
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.