Since this high velocity atomic gas has not been detected in the western lobe, the outflow has a cometary shape. We propose that this outflow is formed when the atomic gas in the inner walls of the cavity is accelerated by the stellar wind. The cometary shape is due to the off-...
1.An ornament or badge made of ribbon or silk that is pleated or gathered to resemble a rose and is given as an award, used to decorate clothing, or worn in the buttonhole of civilian dress to indicate the possession of certain medals or honors. ...
The overall evolution of the solar system is discussed in terms of what is called the Kyoto model. Starting from the formation of the solar nebula, a multistep process is followed in detail, including growth and sedimentation of dust grains in the nebula, formation of planetesimals due to frag...
In this paper, we present a simulation for the formation of a 3-ring structure in the SN 1987A nebula obtained by HST observations. The progenitor of the SN 1987A is believed to be a red supergiant (RSG) which then evolved into a blue supergiant (BSG) just prior to the explosion. In...
Solar system - Formation, Planets, Orbits: The current approach to the origin of the solar system treats it as part of the general process of star formation. As observational information has steadily increased, the field of plausible models for this proc
consistent with the observed densities of the Galilean satellites and our current understanding of Jupiter formation. The retention of ices more volatile than H2O is considered but not modeled in detail. A nominal nebula of ∼0.1 Jupiter masses is constructed by consideration of likely surface ...
ln the modern version of their theory, the solar nebula is thought to have had a mass somewhat greater than that of our present-day Sun. Each part of the nebula exerted a gravitational attraction on the other parts, and these mutual gravitational pulls tended to make the nebula contract.As...
nebula, forming a relatively dense region called the protosun, which eventually developed into the Sun.The planets formed from the much lesser amount of material in the outer regions of the solar nebula. Indeed, the mass of all the planets together is only 0.1 percent of the mass of the ...
solar system/ solar nebulaOrgueil carbonaceous meteoritemeteoritic mineral phasesearly Solar SystempyrrhotiteIODINE–XENON dating has established that iron sulphide in the Orgueil carbonaceous meteorite is one of the oldest known meteoritic mineral phases and probably dates from the condensation stage of the...
Previous results obtained in a similar configuration showed that ion temperatures varied as a function of compression coil voltage, in the keV range. This paper outlines the physics of formation, acceleration, reconnection and compression of two FRCs.关键词: reconnection compression acceleration field ...