![[WC 6] nucleus with other emission-lines nuclei of planetary nebulae](http://s1.studyres.com/store/data/004159324_1-0806f9baff29e598ec0946db112c7fad-300x300.png)
[WC 6] nucleus with other emission-lines nuclei of planetary nebulae
... C/He ratio in the wind = 0.4 to 0.7 (similar WR Pop.I stars) : after removal of an Hrich envelope as a consequence of a late He-flash, the star returns to the AGB with an additional high mass-loss phase, exposing He-burned material (de Freitas Pacheco et al, 1993) but in [WC] CSPN the wind has a che ...
... C/He ratio in the wind = 0.4 to 0.7 (similar WR Pop.I stars) : after removal of an Hrich envelope as a consequence of a late He-flash, the star returns to the AGB with an additional high mass-loss phase, exposing He-burned material (de Freitas Pacheco et al, 1993) but in [WC] CSPN the wind has a che ...
The Fundamental Equations of Gas Dynamics
... The point to remember from this analysis is that pressure in a fluid is the result of a flux of momentum resulting from the microscopic motions of the particles. Particles of mass m crossing a surface within the fluid with random atomic velocity u i (relative to the bulk velocity) contribute an amo ...
... The point to remember from this analysis is that pressure in a fluid is the result of a flux of momentum resulting from the microscopic motions of the particles. Particles of mass m crossing a surface within the fluid with random atomic velocity u i (relative to the bulk velocity) contribute an amo ...
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... entering the excitation mechanism which are not well understood or modeled. Furthermore once it is validated, it can be used for a large set of 1D models of stars. As it was done for the Sun in Samadi et al. (2003c, hereafter Paper II) and Paper III, 3D simulations can also provide quantities which ...
... entering the excitation mechanism which are not well understood or modeled. Furthermore once it is validated, it can be used for a large set of 1D models of stars. As it was done for the Sun in Samadi et al. (2003c, hereafter Paper II) and Paper III, 3D simulations can also provide quantities which ...
Winds of Main-Sequence Stars - Harvard
... Solar X-rays & magnetic flux • Empirically, does solar mass loss really scale with FX ~ Φ ? It depends on which field lines are considered! ...
... Solar X-rays & magnetic flux • Empirically, does solar mass loss really scale with FX ~ Φ ? It depends on which field lines are considered! ...
Geometry of light and shadows
... idea of circles moving on circles held sway over western science for over a thousand years. Going from observation to theory using mathematics was a unique and important step in the development of western science. Although they didn't have the same names for the objects they observed, virtually ever ...
... idea of circles moving on circles held sway over western science for over a thousand years. Going from observation to theory using mathematics was a unique and important step in the development of western science. Although they didn't have the same names for the objects they observed, virtually ever ...
Simultaneous formation of solar system giant planets
... The initial configuration of the Nice model (Tsiganis et al., 2005) represents the orbital configuration of the outer solar system after the gas of the primordial nebula dissipated. The model proposes a compact initial configuration for the location of the giant planets (between ∼ 5 AU - ∼ 15 AU). R ...
... The initial configuration of the Nice model (Tsiganis et al., 2005) represents the orbital configuration of the outer solar system after the gas of the primordial nebula dissipated. The model proposes a compact initial configuration for the location of the giant planets (between ∼ 5 AU - ∼ 15 AU). R ...
IRIS observations of the solar transition region
... median intensity in data numbers per second of 40 to 50 DN/s (Figs. 2) (14). This intensity is larger than the measured intensity of the background “spicules”—longer nearly radial features— of 15 DN/s, which is also apparent from visual inspection of Fig. 1. Although the detailed filling factor of e ...
... median intensity in data numbers per second of 40 to 50 DN/s (Figs. 2) (14). This intensity is larger than the measured intensity of the background “spicules”—longer nearly radial features— of 15 DN/s, which is also apparent from visual inspection of Fig. 1. Although the detailed filling factor of e ...
Protogalaxies
... However, a much more energetically important process is nuclear burning in stars. It has been estimated that about a half of the STELLAR MASS in galaxies today is in the old populations, bulges and stellar halos, and thus about a half of all star formation in the universe’s history can be associated ...
... However, a much more energetically important process is nuclear burning in stars. It has been estimated that about a half of the STELLAR MASS in galaxies today is in the old populations, bulges and stellar halos, and thus about a half of all star formation in the universe’s history can be associated ...
Protogalaxies Encyclopedia of Astronomy & Astrophysics eaa.iop.org S G Djorgovski
... However, a much more energetically important process is nuclear burning in stars. It has been estimated that about a half of the STELLAR MASS in galaxies today is in the old populations, bulges and stellar halos, and thus about a half of all star formation in the universe’s history can be associated ...
... However, a much more energetically important process is nuclear burning in stars. It has been estimated that about a half of the STELLAR MASS in galaxies today is in the old populations, bulges and stellar halos, and thus about a half of all star formation in the universe’s history can be associated ...
Final Paper Template for the 5th Southeast Asian Forum
... strong primordial binaries can be regarded as bound system with greater mass that harder to be expelled from the cluster. Finally, OCR with fewer members contain binaries with higher fraction. From simulation, de la Fuente Marcos (1998) acquired that N-body model with 30% primordial binaries will ha ...
... strong primordial binaries can be regarded as bound system with greater mass that harder to be expelled from the cluster. Finally, OCR with fewer members contain binaries with higher fraction. From simulation, de la Fuente Marcos (1998) acquired that N-body model with 30% primordial binaries will ha ...
Misalignment & Nucleosynthesis in Microquasars Yousaf M. Butt , Thomas J. Maccarone
... jet on the secondary star will result in the spallogenic nucleosynthesis of the light elements Li, Be & B on the secondary’s surface. The integrated yield of such nuclear reactions over the age of the binary system could detectably alter the elemental abundances of the companion star. This scenario ...
... jet on the secondary star will result in the spallogenic nucleosynthesis of the light elements Li, Be & B on the secondary’s surface. The integrated yield of such nuclear reactions over the age of the binary system could detectably alter the elemental abundances of the companion star. This scenario ...
1. INTRODUCTION 2. MASS AND LIGHT
... 2. The argument of ° 2 fails because the intervening structures happen to be contained within 5¡ of the LMC center (although they must extend over at least the inner D3¡ to account for the observed events). This possibility could only apply to a self-gravitating structure and not to an intrinsically ...
... 2. The argument of ° 2 fails because the intervening structures happen to be contained within 5¡ of the LMC center (although they must extend over at least the inner D3¡ to account for the observed events). This possibility could only apply to a self-gravitating structure and not to an intrinsically ...
www.astro.utu.fi
... Orbits of stars very different in outer halo (round) compared to near Sun (elliptical). ...
... Orbits of stars very different in outer halo (round) compared to near Sun (elliptical). ...
The maximal runaway temperature of Earth-like planets
... as a function of the total optical depth. To this goal, we present a wavelength-dependent analytical and a full numerical solution of the semi-gray model as well as simplified analytical estimates. We start with several definitions and an exposition of the model, and then continue with the numerical r ...
... as a function of the total optical depth. To this goal, we present a wavelength-dependent analytical and a full numerical solution of the semi-gray model as well as simplified analytical estimates. We start with several definitions and an exposition of the model, and then continue with the numerical r ...
Measuring Noble Gases in Coma Samples from
... the aerogel in a stepwise fashion. The advantage of step heating is that the amount of outgassing in the sample is temperature controlled; more tightly held volatiles are released at higher temperatures. A two-phase approach was undertaken for processing the flight samples: an initial, low temperatu ...
... the aerogel in a stepwise fashion. The advantage of step heating is that the amount of outgassing in the sample is temperature controlled; more tightly held volatiles are released at higher temperatures. A two-phase approach was undertaken for processing the flight samples: an initial, low temperatu ...
The Milky Way and Andromeda galaxies in a constrained
... and temperatures (i.e. cold and hot) can coexist in the same spatial region. These cold and hot phases are however not fixed, as the selection of particles to be ignored as neighbours depends on the relative properties of each pair of particles i, j and is not based on any pre-fixed values for differ ...
... and temperatures (i.e. cold and hot) can coexist in the same spatial region. These cold and hot phases are however not fixed, as the selection of particles to be ignored as neighbours depends on the relative properties of each pair of particles i, j and is not based on any pre-fixed values for differ ...
parte ii - NivelesDeIngles
... electromagnetic radiation – radiación electromagnetica – (astr.) The energy that radiates from all things in nature and from man–made electronic systems and stars. It includes cosmic rays, gamma rays, x–rays, ultraviolet light, visible light, infrared light, radar, microwaves, TV, radio, cel lphones ...
... electromagnetic radiation – radiación electromagnetica – (astr.) The energy that radiates from all things in nature and from man–made electronic systems and stars. It includes cosmic rays, gamma rays, x–rays, ultraviolet light, visible light, infrared light, radar, microwaves, TV, radio, cel lphones ...