Geomagnetism and Aeronomy, 2016, Vol. 56, № 7, pp. 1
... phases for duplication of the Orientation and Stabilization System work on trajectory correction. Earth-Earth part of the flight (phases 1-2), when the spacecraft orbit lies almost in the ecliptic plane, is called the ecliptic phase. It is designed for formation of the heliocentric trajectory, which ...
... phases for duplication of the Orientation and Stabilization System work on trajectory correction. Earth-Earth part of the flight (phases 1-2), when the spacecraft orbit lies almost in the ecliptic plane, is called the ecliptic phase. It is designed for formation of the heliocentric trajectory, which ...
Master SPACE - University of Science and Technology of Hanoi
... 21.10 The Effect of Ionizing Radiation on the Components (2 ECTS) – LC+TC: 20h Coordinator: Frédéric Saigné Teacher: Frédéric Wrobel Radiation-induced failures in microelectronics pose a growing concern in the aerospace and avionic communities. Incident radiation acting on these devices is mainly du ...
... 21.10 The Effect of Ionizing Radiation on the Components (2 ECTS) – LC+TC: 20h Coordinator: Frédéric Saigné Teacher: Frédéric Wrobel Radiation-induced failures in microelectronics pose a growing concern in the aerospace and avionic communities. Incident radiation acting on these devices is mainly du ...
$doc.title
... sensitivity and noise introduced by high-energy particles. The MGS/ER reflectometer is ...
... sensitivity and noise introduced by high-energy particles. The MGS/ER reflectometer is ...
スライド 1
... Looking down onto the ecliptic plane from above, a CIR near Earth's orbit is sketched. The Sun is off the bottom of the figure. The CIR is shaded in tan, and the Earth's track through the CIR is depicted as the green dashed line. In the reference frame of this sketch, the Earth moves downward with t ...
... Looking down onto the ecliptic plane from above, a CIR near Earth's orbit is sketched. The Sun is off the bottom of the figure. The CIR is shaded in tan, and the Earth's track through the CIR is depicted as the green dashed line. In the reference frame of this sketch, the Earth moves downward with t ...
Potential for Life on the Terrestrial Planets
... atmospheres with CO2/N2 mixing ratios lower then 96% and exposed to intense XUV fluxes result in higher exospheric temperatures and more expanded thermosphereexosphere environments and, hence, suffer stronger atmospheric erosion, which may result in the total loss of several hundred bars even if an ...
... atmospheres with CO2/N2 mixing ratios lower then 96% and exposed to intense XUV fluxes result in higher exospheric temperatures and more expanded thermosphereexosphere environments and, hence, suffer stronger atmospheric erosion, which may result in the total loss of several hundred bars even if an ...
The Dynamic Universe – space as a spherically closed energy system
... dimensions of gravitationally bound local systems in space become related to the dimensions of whole space. In the ongoing expansion phase it means e.g. that sizes of galaxies and planetary systems expand in direct proportion to the expansion of whole space, Fig. 3. Likewise, all velocities in space ...
... dimensions of gravitationally bound local systems in space become related to the dimensions of whole space. In the ongoing expansion phase it means e.g. that sizes of galaxies and planetary systems expand in direct proportion to the expansion of whole space, Fig. 3. Likewise, all velocities in space ...
Mass transport in the heliosphere by energetic neutral atoms
... densities. In contrast, the faster-velocity ENAs originating in the heliospheric sheath are less subjected to ionization and, consequently, the relative abundances of hydrogen ENAs and interstellar hydrogen could be significantly different in the Sun’s vicinity. Therefore mass transport by heliosphe ...
... densities. In contrast, the faster-velocity ENAs originating in the heliospheric sheath are less subjected to ionization and, consequently, the relative abundances of hydrogen ENAs and interstellar hydrogen could be significantly different in the Sun’s vicinity. Therefore mass transport by heliosphe ...
Annular Comb Gate
... The annular multichannel plates permit the beam to pass through the gap, but on the return, they detect the ions. The cylindrical electric field is maintained continuously through this region by oversized outer cylinder kept at a higher potential, such that the field is smooth. Position sensing anod ...
... The annular multichannel plates permit the beam to pass through the gap, but on the return, they detect the ions. The cylindrical electric field is maintained continuously through this region by oversized outer cylinder kept at a higher potential, such that the field is smooth. Position sensing anod ...
Observations
... Coordinated observations by both Cassini and Galileo offer the unique opportunity to simultaneously observe the solar wind and Jupiter’s magnetosphere. Cassini in situ measurements of the upstream solar wind conditions while Galileo is deep in Jupiter’s magnetosphere are planned during approach. Out ...
... Coordinated observations by both Cassini and Galileo offer the unique opportunity to simultaneously observe the solar wind and Jupiter’s magnetosphere. Cassini in situ measurements of the upstream solar wind conditions while Galileo is deep in Jupiter’s magnetosphere are planned during approach. Out ...
Jupiter
... radio waves are much less attenuated by an atmosphere than are gamma rays, so cosmic rays can be observed through much greater atmospheric ...
... radio waves are much less attenuated by an atmosphere than are gamma rays, so cosmic rays can be observed through much greater atmospheric ...
J. M. Greenberg, J. S. Gillette, G. Muñoz Caro, T. B. Mahajan, R. N.
... injection into the time-of-flight apparatus. Only molecules with multiple aromatic rings or an extended conjugation system are appreciably ionized owing to their low-ionization potentials and resonant absorbances at 266 nm (Clemett & Zare 1997). Although the mL2MS system is quite selective, the spec ...
... injection into the time-of-flight apparatus. Only molecules with multiple aromatic rings or an extended conjugation system are appreciably ionized owing to their low-ionization potentials and resonant absorbances at 266 nm (Clemett & Zare 1997). Although the mL2MS system is quite selective, the spec ...
Option D Lesson 6 Cosmology and Further - Physics
... vast and much cooler cosmos we currently inhabit. We can see remnants of this hot dense matter as the now very cold cosmic microwave background radiation which still pervades the universe and is visible to microwave detectors as a uniform glow across the entire sky. ...
... vast and much cooler cosmos we currently inhabit. We can see remnants of this hot dense matter as the now very cold cosmic microwave background radiation which still pervades the universe and is visible to microwave detectors as a uniform glow across the entire sky. ...
Natasha Wood
... AGN are divided into two classes: radio-quiet and radio-loud. In the latter, jets from AGN dominate the luminosity at radio wavelengths and possibly other wavelengths as well. On the other hand, radio-quiet galaxies have negligible jet-related emission. Unified Models for AGNs attempt to prove that ...
... AGN are divided into two classes: radio-quiet and radio-loud. In the latter, jets from AGN dominate the luminosity at radio wavelengths and possibly other wavelengths as well. On the other hand, radio-quiet galaxies have negligible jet-related emission. Unified Models for AGNs attempt to prove that ...
Neutron stars and pulsars
... sufficient to power the Crab nebula. The characteristic age of a pulsar (assuming that the energy loss is due to magnetic dipole radiation) is given by ...
... sufficient to power the Crab nebula. The characteristic age of a pulsar (assuming that the energy loss is due to magnetic dipole radiation) is given by ...
From the Sun`s atmosphere to the Earth`s atmosphere
... of the Sun’s global configuration. Those may have different origins and associated events, such as global magnetic nonequilibrium or prominence disruption. The global solar atmospheric models are developed mainly in the framework of Magnetohydrodynamics (MHD). The relevant set of equations describes ...
... of the Sun’s global configuration. Those may have different origins and associated events, such as global magnetic nonequilibrium or prominence disruption. The global solar atmospheric models are developed mainly in the framework of Magnetohydrodynamics (MHD). The relevant set of equations describes ...
Credit: X-ray: NASA/CXC/UMass/D. Wang et al.; Optical: Caltech/SSC/S.Stolovy
... Total X-ray flux distribution: use full 3 Ms X-ray light curve (300s bins, 10,000 data points; Neilsen+ 14b) A different perspective: move beyond distinct flares, think about quiescent and variable processes Similar work in NIR (Dodds-Eden+ ‘11; Witzel+ ’12) ...
... Total X-ray flux distribution: use full 3 Ms X-ray light curve (300s bins, 10,000 data points; Neilsen+ 14b) A different perspective: move beyond distinct flares, think about quiescent and variable processes Similar work in NIR (Dodds-Eden+ ‘11; Witzel+ ’12) ...
Great Migrations & other natural history tales
... Comprehensive model of dusty debris disk (3D) with full treatment of collisions and particle dynamics. ￭ especially suitable to denser transitional disks supporting dust avalanches ￭ detailed treatment of grain-grain colisions, depending on material ￭ detailed treatment of radiation pressure and opt ...
... Comprehensive model of dusty debris disk (3D) with full treatment of collisions and particle dynamics. ￭ especially suitable to denser transitional disks supporting dust avalanches ￭ detailed treatment of grain-grain colisions, depending on material ￭ detailed treatment of radiation pressure and opt ...
CONSTRAINTS ON THE VERY HIGH ENERGY
... microwave background alone and restrict significantly, for example, the parameter space available for the exotic particle physics scenarios recently proposed to explain the highest energy cosmic-ray events. If direct emission from blazar AGNs in fact accounts for most of the observed GeV background, ...
... microwave background alone and restrict significantly, for example, the parameter space available for the exotic particle physics scenarios recently proposed to explain the highest energy cosmic-ray events. If direct emission from blazar AGNs in fact accounts for most of the observed GeV background, ...
Spectra of Cosmic Ray Protons and Helium Produced in Supernova
... (Adriani et al. 2011) experiments; see Lavalle (2011) for additional references. The general conclusion from these measurements is the presence of hardening in the spectra of protons, helium and probably heavier nuclei at magnetic rigidity about 240 GV and the increase of He/p ratio in the above ene ...
... (Adriani et al. 2011) experiments; see Lavalle (2011) for additional references. The general conclusion from these measurements is the presence of hardening in the spectra of protons, helium and probably heavier nuclei at magnetic rigidity about 240 GV and the increase of He/p ratio in the above ene ...
Health threat from cosmic rays
The health threat from cosmic rays is the danger posed by galactic cosmic rays and solar energetic particles to astronauts on interplanetary missions. Galactic cosmic rays (GCRs) consist of high energy protons (85%), helium (14%) and other high energy nuclei (HZE ions). Solar energetic particles consist primarily of protons accelerated by the Sun to high energies via proximity to solar flares and coronal mass ejections. They are one of the most important barriers standing in the way of plans for interplanetary travel by crewed spacecraft.