Atmospheric Abundances of Light Elements in the F
... also measured the Fel lines in order to utilize them for gf values were empirically deduced from the equivalent widths measured on the Solar Flux Atlas from 296 to checking the result of abundance computations. We adopted a set of model parameters: (Teff, log g, £ t ) 1300 nm (Kurucz et al. 1984). T ...
... also measured the Fel lines in order to utilize them for gf values were empirically deduced from the equivalent widths measured on the Solar Flux Atlas from 296 to checking the result of abundance computations. We adopted a set of model parameters: (Teff, log g, £ t ) 1300 nm (Kurucz et al. 1984). T ...
In the 1920s and 1930s, Marietta Blau developed the method of
... radiation in the Hafelekar cosmic ray observatory (2290 m above sea level) for five month. As reference, similar plates have been placed in the Vienna Radium Institute (170 m). On the plates exposed at higher altitudes, Blau and Wambacher discovered a number of star-shaped structures originating fro ...
... radiation in the Hafelekar cosmic ray observatory (2290 m above sea level) for five month. As reference, similar plates have been placed in the Vienna Radium Institute (170 m). On the plates exposed at higher altitudes, Blau and Wambacher discovered a number of star-shaped structures originating fro ...
ph507lecnote07
... Our Sun is the nearest star. The fascinating properties and phenomena of the solar surface layers are easily observed and have been studied intensely. Unfortunately, models for understanding solar phenomena have not kept pace with such detailed data. Because the Sun is a fairly typical star and beca ...
... Our Sun is the nearest star. The fascinating properties and phenomena of the solar surface layers are easily observed and have been studied intensely. Unfortunately, models for understanding solar phenomena have not kept pace with such detailed data. Because the Sun is a fairly typical star and beca ...
Sample Return from Primitive Asteroids and Comets
... The parent bodies of some meteorites were large enough to undergo partial or complete melting and igneous differentiation, but the least altered meteorites still retain elemental abundances remarkably close to the Solar System average. These primitive meteorites contain abundant organic matter that ...
... The parent bodies of some meteorites were large enough to undergo partial or complete melting and igneous differentiation, but the least altered meteorites still retain elemental abundances remarkably close to the Solar System average. These primitive meteorites contain abundant organic matter that ...
ASTR 330: The Solar System
... than 4.6 billion years, even though the Galaxy that contains the solar system is much older than this. Furthermore, many meteorites share this common age, which we have called “the age of the solar system”. • Around 100 years ago, a very different theory for the formation of the planets was in favor ...
... than 4.6 billion years, even though the Galaxy that contains the solar system is much older than this. Furthermore, many meteorites share this common age, which we have called “the age of the solar system”. • Around 100 years ago, a very different theory for the formation of the planets was in favor ...
The Cosmic Rays and Our Galaxy
... presented in Sect. 2.6. Most CRs originate outside the solar system and the physical properties of the Galaxy (dimension, matter density, magnetic fields, described in Sect. 2.7) have an effect on their journey from sources to the Earth. Only low-energy particles (below few GeV) are of solar origin ...
... presented in Sect. 2.6. Most CRs originate outside the solar system and the physical properties of the Galaxy (dimension, matter density, magnetic fields, described in Sect. 2.7) have an effect on their journey from sources to the Earth. Only low-energy particles (below few GeV) are of solar origin ...
No Slide Title
... Concentrations of dust and gas in the cloud; material starts to collect (gravity > magnetic forces) Hubble image at http://hubblesite.org/newscenter/archive/releases/nebula/emission/2005/35/image/a/ ...
... Concentrations of dust and gas in the cloud; material starts to collect (gravity > magnetic forces) Hubble image at http://hubblesite.org/newscenter/archive/releases/nebula/emission/2005/35/image/a/ ...
Chapter17_New
... bright because they are hotter than the descending gas that separates them. heliopause — The boundary of the heliosphere, where the solar wind merges into the interstellar gas. helioseismology — A technique used to study the internal structure of the Sun by measuring and analyzing oscillations of th ...
... bright because they are hotter than the descending gas that separates them. heliopause — The boundary of the heliosphere, where the solar wind merges into the interstellar gas. helioseismology — A technique used to study the internal structure of the Sun by measuring and analyzing oscillations of th ...
Upper ionosphere of Mars is not axially symmetrical
... 2006). The Ion Mass Analyzer (IMA) determines the composition, energy, and angular distribution of ions in the energy range ≈ 10 eV–30 keV. Mass (m/q) resolution is provided by a combination of an electrostatic analyzer with deflection of ions in a cylindrical magnetic field set up by permanent magn ...
... 2006). The Ion Mass Analyzer (IMA) determines the composition, energy, and angular distribution of ions in the energy range ≈ 10 eV–30 keV. Mass (m/q) resolution is provided by a combination of an electrostatic analyzer with deflection of ions in a cylindrical magnetic field set up by permanent magn ...
Part 1 - Cura
... Within the Solar System, the Earth and the other planets interact between themselves and the Sun in the plane of Ecliptic. At the same time, all these Heavenly objects experience the same influence, the Galactic Center and other Galactic objects exert to them, e.g. from the Southern Pole of Ecliptic ...
... Within the Solar System, the Earth and the other planets interact between themselves and the Sun in the plane of Ecliptic. At the same time, all these Heavenly objects experience the same influence, the Galactic Center and other Galactic objects exert to them, e.g. from the Southern Pole of Ecliptic ...
Simultaneous observation of the electron acceleration and ion deceleration
... the three different ion populations: solar wind ions, magnetically reflected ions, and ions backscattered at the lunar surface. Figure 2(c), (d), and (e) show Energy/charge-TOF spectrograms below the time of flight of 100 nsec. Since IMA is an LEF (Linear Electric Field) TOF mass spectrometer (Yokot ...
... the three different ion populations: solar wind ions, magnetically reflected ions, and ions backscattered at the lunar surface. Figure 2(c), (d), and (e) show Energy/charge-TOF spectrograms below the time of flight of 100 nsec. Since IMA is an LEF (Linear Electric Field) TOF mass spectrometer (Yokot ...
Annular Comb Gate
... trying to chop the ion beam with a dull knife, and despite feeding the beam in voltage, one can also have an OFF’ state that deflects ions away from the detectors. Should the more slowly, could not achieve thinner slices. This necessitates a second detectors be swamped by H+, one can put the comb ga ...
... trying to chop the ion beam with a dull knife, and despite feeding the beam in voltage, one can also have an OFF’ state that deflects ions away from the detectors. Should the more slowly, could not achieve thinner slices. This necessitates a second detectors be swamped by H+, one can put the comb ga ...
2011 Solar Walk Media Kit | Contents
... announce Solar Walk - 3D Solar System 1.9 for iOS, an update to their award-winning Education app that allows users to play with an interactive model of the Solar System and the Milky Way galaxy. The 360-degree, touch control 3D model displays planets, natural and artificial satellites, the closest ...
... announce Solar Walk - 3D Solar System 1.9 for iOS, an update to their award-winning Education app that allows users to play with an interactive model of the Solar System and the Milky Way galaxy. The 360-degree, touch control 3D model displays planets, natural and artificial satellites, the closest ...
Astronomy Chapter 11 – Meteors, Comets and Asteroids A. Main
... radioactive material, which can be used to determine the age of the meteorite. Most have been dated to be around 4.5 billion years old. ⇒ In some meteorites the chondrules are embedded in a black, carbon-rich, coal-like substance. These meteorites contain organic compounds including amino acids, whi ...
... radioactive material, which can be used to determine the age of the meteorite. Most have been dated to be around 4.5 billion years old. ⇒ In some meteorites the chondrules are embedded in a black, carbon-rich, coal-like substance. These meteorites contain organic compounds including amino acids, whi ...
Are Sunspots Disappearing
... part colleagues have trouble believing is the extrapolation. Hathaway notes that most of their data were taken after the maximum of Solar Cycle 23 (2000-2002) when sunspot activity naturally began to decline. "The drop in magnetic fields could be a normal aspect of the solar cycle and not a sign tha ...
... part colleagues have trouble believing is the extrapolation. Hathaway notes that most of their data were taken after the maximum of Solar Cycle 23 (2000-2002) when sunspot activity naturally began to decline. "The drop in magnetic fields could be a normal aspect of the solar cycle and not a sign tha ...
Enhanced temperature regions in the polar zones of the Sun
... level (7800 K). The regions are extended: in the North-South direction they can reach from a latitude of 40 degrees to the pole, and in the East-West direction they can even surround the entire pole, forming a ring-like region. Embedded in these extended regions are maxima of microwave radiation. Th ...
... level (7800 K). The regions are extended: in the North-South direction they can reach from a latitude of 40 degrees to the pole, and in the East-West direction they can even surround the entire pole, forming a ring-like region. Embedded in these extended regions are maxima of microwave radiation. Th ...
Plasma waves above the ion cyclotron frequency in the solar wind: a
... analyzers has provided more information about these waves. The analysis of waveforms from the WIND/TDS instrument first revealed their coherent nature (Fig. 5), and show that they often appear as highly modulated wavepackets (Kellogg et al., 1999; Mangeney et al., 1999). Recently, Malaspina et al. ( ...
... analyzers has provided more information about these waves. The analysis of waveforms from the WIND/TDS instrument first revealed their coherent nature (Fig. 5), and show that they often appear as highly modulated wavepackets (Kellogg et al., 1999; Mangeney et al., 1999). Recently, Malaspina et al. ( ...
ppt
... •Appearance Oscillation can be seen in tagged mode with low background Measure θ23 •More work needed to see if 2nd max can be seen sufficiently well to go beyond osc. to see solar interference CP violation Heirarchy effects. Energy close to Fermi motion limit— can one use C and p or only p? ...
... •Appearance Oscillation can be seen in tagged mode with low background Measure θ23 •More work needed to see if 2nd max can be seen sufficiently well to go beyond osc. to see solar interference CP violation Heirarchy effects. Energy close to Fermi motion limit— can one use C and p or only p? ...
Advanced Composition Explorer
Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-time data from ACE is used by the NOAA Space Weather Prediction Center to improve forecasts and warnings of solar storms. The ACE robotic spacecraft was launched August 25, 1997 and entered a Lissajous orbit close to the L1 Lagrangian point (which lies between the Sun and the Earth at a distance of some 1.5 million km from the latter) on December 12, 1997. The spacecraft is currently operating at that orbit. Because ACE is in a non-Keplerian orbit, and has regular station-keeping maneuvers, the orbital parameters at right are only approximate. The spacecraft is still in generally good condition in 2015, and is projected to have enough fuel to maintain its orbit until 2024. NASA Goddard Space Flight Center managed the development and integration of the ACE spacecraft.