The solar silicon abundance based on 3D non
... be circumvented by basing the abundance analysis on some weighted mean inferred from many spectral lines. Once given reliable transition probabilities for hopefully many spectral abundance diagnostics, the main systematic errors in the classic spectroscopic methodology arise from the use of onedimen ...
... be circumvented by basing the abundance analysis on some weighted mean inferred from many spectral lines. Once given reliable transition probabilities for hopefully many spectral abundance diagnostics, the main systematic errors in the classic spectroscopic methodology arise from the use of onedimen ...
Study of Low Voltage Prebreakdown Sites in Multicrystalline Si
... line breakdown sites (Figure 3(a)), some dark points and lines can be also seen. That is, precipitates decorating this grain boundary can be revealed in the EBIC mode. However, our EDS investigations do not reveal any compositional changes in such breakdown sites. Of course, it should be taken into ...
... line breakdown sites (Figure 3(a)), some dark points and lines can be also seen. That is, precipitates decorating this grain boundary can be revealed in the EBIC mode. However, our EDS investigations do not reveal any compositional changes in such breakdown sites. Of course, it should be taken into ...
- Achieve the Core
... answers to any questions. You will notice as you answer the questions that some of the questions have two parts. You need to answer Part A of the question before you answer Part B, but you may return to Part A if needed. Take as long as you need to read and answer the questions. It is likely that it ...
... answers to any questions. You will notice as you answer the questions that some of the questions have two parts. You need to answer Part A of the question before you answer Part B, but you may return to Part A if needed. Take as long as you need to read and answer the questions. It is likely that it ...
Towards event-by-event studies of the ultrahigh-energy cosmic
... sources: accelaration mechanism, local backgrounds space: -background, magnetic fileds ...
... sources: accelaration mechanism, local backgrounds space: -background, magnetic fileds ...
Dark Matter Search
... • Constraint: lower limit of bulk Lorentz factor: Γmin ~1000 • Some bursts have an extra spectral component compared to the standard Band model. • These short, bright flashes can be used as tools to probe basic physics, as in the ...
... • Constraint: lower limit of bulk Lorentz factor: Γmin ~1000 • Some bursts have an extra spectral component compared to the standard Band model. • These short, bright flashes can be used as tools to probe basic physics, as in the ...
Alignment of the 1.6 meter off-axis New Solar Telescope at Big Bear
... aberration at field stop. The focal plane were measured using a wavefront sensor (WFS), which is discussed in ...
... aberration at field stop. The focal plane were measured using a wavefront sensor (WFS), which is discussed in ...
Detection of the Rossiter–McLaughlin effect in
... sources besides being also good radial velocity standards (Zwitter et al. 2007). The whole solar spectrum provides absolute reference of radial velocity at sub-m s−1 level (Molaro & Monai 2012). We applied this technique to search for the RM effect through a sequence of observations of the sunlight ...
... sources besides being also good radial velocity standards (Zwitter et al. 2007). The whole solar spectrum provides absolute reference of radial velocity at sub-m s−1 level (Molaro & Monai 2012). We applied this technique to search for the RM effect through a sequence of observations of the sunlight ...
The Present Status of Chinese Study of Solar Eclipses
... complete records, solar eclipse occupies a special place in the various records of celestial phenomena in Chinese history. Ancient Chinese records of solar eclipse can be divided into three categories (Liu Ciyuan, 2002a): 1) From the Xia Dynasty to the end of the West Zhou Dynasty, relevant records ...
... complete records, solar eclipse occupies a special place in the various records of celestial phenomena in Chinese history. Ancient Chinese records of solar eclipse can be divided into three categories (Liu Ciyuan, 2002a): 1) From the Xia Dynasty to the end of the West Zhou Dynasty, relevant records ...
Directed Reading
... ______ 15. What atomic process combines nuclei of small atoms to form moremassive nuclei? a. nuclear fission b. nuclear fusion c. nuclear half-life d. nuclear decay ______ 16. Nuclei of which atoms are the primary fuel for the sun? a. hydrogen b. helium c. protons d. electrons 17. What is the common ...
... ______ 15. What atomic process combines nuclei of small atoms to form moremassive nuclei? a. nuclear fission b. nuclear fusion c. nuclear half-life d. nuclear decay ______ 16. Nuclei of which atoms are the primary fuel for the sun? a. hydrogen b. helium c. protons d. electrons 17. What is the common ...
Energetic neutral atoms around HD 209458b
... to account for the larger photon fluxes at the orbital distance of HD 209458b. The stellar wind density and temperature have also been scaled from average solar conditions for our Sun using relations given by Russell et al. (1988). Given the close proximity of HD 209458b to its host star the choice ...
... to account for the larger photon fluxes at the orbital distance of HD 209458b. The stellar wind density and temperature have also been scaled from average solar conditions for our Sun using relations given by Russell et al. (1988). Given the close proximity of HD 209458b to its host star the choice ...
Sample file
... radius. Energy from the nuclear fusion reactions in the core is carried through the plasma of the radiative zone by the sequential absorption and reemission of photons, or energy packets, by gas molecules. This long relay of events transfers the energy to the upper layers of the Sun. The loss of ene ...
... radius. Energy from the nuclear fusion reactions in the core is carried through the plasma of the radiative zone by the sequential absorption and reemission of photons, or energy packets, by gas molecules. This long relay of events transfers the energy to the upper layers of the Sun. The loss of ene ...
THE LUYINOSITY VARIABILITY OF SOLAR
... stars several hundred Myr old shows some dependence on stellar mass, declining from ~7 km/sec to ~ 4 km/sec as mass decreases by 30% or so [Radick et al., 1987]. This trend in mean rotation rate is probably a relic of early evolution, because the temporal evolution of rotation for such stars does no ...
... stars several hundred Myr old shows some dependence on stellar mass, declining from ~7 km/sec to ~ 4 km/sec as mass decreases by 30% or so [Radick et al., 1987]. This trend in mean rotation rate is probably a relic of early evolution, because the temporal evolution of rotation for such stars does no ...
doc - Eu-Hou
... interest in the middle. The data recorded is the total power received by the telescope. From this, a “picture” can be created showing the intensity variation over the scanned area. Three different sources have been selected as measurement options. Each of them is an example of three very different ...
... interest in the middle. The data recorded is the total power received by the telescope. From this, a “picture” can be created showing the intensity variation over the scanned area. Three different sources have been selected as measurement options. Each of them is an example of three very different ...
Main-belt comets as tracers of ice in the inner Solar system
... served comet-like activity (e.g., Tóth 2000). However, observations of renewed activity in 2002 and 2007 (Hsieh et al. 2004, 2010; Lowry & Fitzsimmons 2005) rendered that explanation highly implausible. While recurrent activity (with intervening periods of inactivity) is commonly observed for class ...
... served comet-like activity (e.g., Tóth 2000). However, observations of renewed activity in 2002 and 2007 (Hsieh et al. 2004, 2010; Lowry & Fitzsimmons 2005) rendered that explanation highly implausible. While recurrent activity (with intervening periods of inactivity) is commonly observed for class ...
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.