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what is a wave?
... To describe EM wave propagation in other media, two properties of the medium are important, its electric permittivity ε and magnetic permeability μ. These are also complex parameters. ...
... To describe EM wave propagation in other media, two properties of the medium are important, its electric permittivity ε and magnetic permeability μ. These are also complex parameters. ...
ALFVIN 1994) ON RESISTIVE DISSIPATION WAVES IN AN
... region the effect of the resistive diffusivity and Alfvn speed is negligible and in it the solution can be written as a linear combination of an upward and a downward propagating wave. The wavelengths and ...
... region the effect of the resistive diffusivity and Alfvn speed is negligible and in it the solution can be written as a linear combination of an upward and a downward propagating wave. The wavelengths and ...
turbulence - "A" Laboratory, Department of Physics/Astrophysics
... Therefore the higher Vrms, the higher the Jeans mass. However locally the turbulence may trigger the collapse because of converging flow that gather material with a weak velocity dispersion. ...
... Therefore the higher Vrms, the higher the Jeans mass. However locally the turbulence may trigger the collapse because of converging flow that gather material with a weak velocity dispersion. ...
Outta This World - Kent School District
... piggy back ride and you give it to them for so long you want to drop but they won’t let you. Well that is how the moon feels about that tide. Now that you know what happens when there is a tide you can kick back and say I know what is causing this to happen. Tidal breaking is the second effects that ...
... piggy back ride and you give it to them for so long you want to drop but they won’t let you. Well that is how the moon feels about that tide. Now that you know what happens when there is a tide you can kick back and say I know what is causing this to happen. Tidal breaking is the second effects that ...
Peer-reviewed Article PDF - e
... Here α is some constant. Below we will omit the term "modulus for simplicity. Within the present work, we did not intend to explain the physical sense of expression (1). We only may assume that this kind of interaction can be linked in some manner with the finite light speed or with the features of ...
... Here α is some constant. Below we will omit the term "modulus for simplicity. Within the present work, we did not intend to explain the physical sense of expression (1). We only may assume that this kind of interaction can be linked in some manner with the finite light speed or with the features of ...
EXPLORATION OF THE KUIPER BELT BY HIGH
... the occulter and the antisolar direction. In our observations, ! ¼ 36 , 7 , and 35 for fields 1, 2, and 3, respectively, and DAU is the distance of the occulter from the Sun in AU. The diameter of the diffraction shadow of a small object is 3 times the Fresnel scale when the star is small with re ...
... the occulter and the antisolar direction. In our observations, ! ¼ 36 , 7 , and 35 for fields 1, 2, and 3, respectively, and DAU is the distance of the occulter from the Sun in AU. The diameter of the diffraction shadow of a small object is 3 times the Fresnel scale when the star is small with re ...
April 2017 - Newbury Astronomical Society
... Dwarf companion. Hydrogen is pulled off the red giant and spirals inwards towards the white dwarf and forms a rotating disc. The Hydrogen gas eventually falls on to the surface of the white dwarf and is compressed by the enormous gravity into a shallow but very dense layer on the surface. The size o ...
... Dwarf companion. Hydrogen is pulled off the red giant and spirals inwards towards the white dwarf and forms a rotating disc. The Hydrogen gas eventually falls on to the surface of the white dwarf and is compressed by the enormous gravity into a shallow but very dense layer on the surface. The size o ...
Validation of the k-filtering technique for a signal composed
... Received: 8 May 2014 – Revised: – Accepted: 3 August 2014 – Published: 23 December 2014 ...
... Received: 8 May 2014 – Revised: – Accepted: 3 August 2014 – Published: 23 December 2014 ...
Solutions to Homework #6, AST 203, Spring 2012
... per problem for overly high precision. Three points off for each arithmetic or algebra error. Further calculations correctly done based on this erroneous value should be given full credit. However, if the resulting answer is completely ludicrous (e.g., 10−30 seconds for the time to travel to the nea ...
... per problem for overly high precision. Three points off for each arithmetic or algebra error. Further calculations correctly done based on this erroneous value should be given full credit. However, if the resulting answer is completely ludicrous (e.g., 10−30 seconds for the time to travel to the nea ...
a report on pulsars, written for PHAS1901
... moving through a magnetic field), giving rise to a strong beam of electromagnetic radiation at all wavelengths. If the earth is in the path swept out by this beam, it will be observed by us as a pulse, in the same way that light-houses appear to flash from far away. There are over a thousand pulsars ...
... moving through a magnetic field), giving rise to a strong beam of electromagnetic radiation at all wavelengths. If the earth is in the path swept out by this beam, it will be observed by us as a pulse, in the same way that light-houses appear to flash from far away. There are over a thousand pulsars ...
PowerPoint Presentation - Mullard Space Science Laboratory
... SGRB in the first hundred seconds is ~ 1050 erg. LGRB are a few hundreds to a few thousand times more energetic. Now there are evidences that LGRB are associated with violent explosions of massive stars [13,14], while SGRB are believed to be caused by compact-star merging. Here, we consider various ...
... SGRB in the first hundred seconds is ~ 1050 erg. LGRB are a few hundreds to a few thousand times more energetic. Now there are evidences that LGRB are associated with violent explosions of massive stars [13,14], while SGRB are believed to be caused by compact-star merging. Here, we consider various ...
Physics Review for the State Assessment
... 27. If you push twice as hard against a stationary brick wall, the amount of work you do a) doubles. c) remains constant but non-zero. b) is cut in half. d) remains constant at zero. 28. The measure of the average kinetic energy of individual molecules is referred to as a) internal energy. b) therma ...
... 27. If you push twice as hard against a stationary brick wall, the amount of work you do a) doubles. c) remains constant but non-zero. b) is cut in half. d) remains constant at zero. 28. The measure of the average kinetic energy of individual molecules is referred to as a) internal energy. b) therma ...
High energy universe – Satellite missions
... The gamma ray bursts have been recognized to be the biggest explosions since the Big Bang [1]. They generate a luminosity of 10 51 erg/sec and that would happen if matter of ...
... The gamma ray bursts have been recognized to be the biggest explosions since the Big Bang [1]. They generate a luminosity of 10 51 erg/sec and that would happen if matter of ...
IndIGO Indian Initiative in Gravitational-wave Observations
... the global effort for detecting GW on two significant fronts • Seminal contributions to source modeling at RRI [Bala Iyer] and to GW data analysis at IUCAA [Sanjeev Dhurandhar] • RRI: Indo-French collaboration for two decades to compute high accuracy waveforms for in-spiraling compact binaries from ...
... the global effort for detecting GW on two significant fronts • Seminal contributions to source modeling at RRI [Bala Iyer] and to GW data analysis at IUCAA [Sanjeev Dhurandhar] • RRI: Indo-French collaboration for two decades to compute high accuracy waveforms for in-spiraling compact binaries from ...
solar photosphere and chromosphere
... • calculate emergent intensities and compare with observations • modify T(z), if necessary (disagreement between data and calculated intensities) • otherwise ⇒ MODEL c) Example Vernazza, Avrett, & Loeser (1981, [23]) ⇒ VAL A–F, VAL C ...
... • calculate emergent intensities and compare with observations • modify T(z), if necessary (disagreement between data and calculated intensities) • otherwise ⇒ MODEL c) Example Vernazza, Avrett, & Loeser (1981, [23]) ⇒ VAL A–F, VAL C ...
black holes are created when stars collapse and die from burning its
... • discovered two centuries ago by John Michell • John hypothesized that it’s possible for gravity to be so overwhelmingly strong that nothing, not even light, could escape, which would be a black hole • Michell said that if something can generate such a tremendous amount of gravity, it would have t ...
... • discovered two centuries ago by John Michell • John hypothesized that it’s possible for gravity to be so overwhelmingly strong that nothing, not even light, could escape, which would be a black hole • Michell said that if something can generate such a tremendous amount of gravity, it would have t ...