New models of massive stars have been calculated as a part of a project animed at the construction of an extended grid of stellar tracks for several metallicities, covering all the main evolutionary phases of low, intermediate and massive stars, with updated physics. After a brief description ...
rest of the universe reaches Earth in the form of electromagnetic radiation. By interpreting that radiation,astronomerscan glimpse the earliest epochs of the universe, measure the general expansion of the universe, and determine the chemicalcompositionofstarsand theinterstellar medium. Just as the ...
It goes without saying that this kind of scenario would have important consequences on the firstphase of chemical enrichment of The continuous improvement of the input physics included ina stellar evolution code, led Chieffi et al The Evolutionary Properties ofZero Metal Stars Stellar...
SEMIFLEXIBLE STARS This section addresses semiflexible (regular) star polymers. Goodson and Novak7 synthesized three-arm star poly(n-hexyl isocyanate), which is a typical semiflexible polymer, by living titanium-catalyzed coordination polymerization. The three-arm star poly(n-hexyl Department of ...
Stars much more massive than the Sun have a slightly different fate. While the Sun's mass is only sufficient to fuse lighter elements, a star that isaround 8 times the mass of our Sunwill have the energy to fuse many heavier elements. Towards the end of their lives, these massive stars...
of less than one week. Some of these planets seem to be distended in size as a result of heating by their stars. More than 20 percent of stars have somewhat smaller nearby planets, with sizes of several to a few tens of Earth masses and with orbital periods of less than three months....
Varentsov - 《Nuclear Instruments & Methods in Physics Research》 被引量: 26发表: 2006年 The cluster structure of the inner crust of neutron stars in the Hartree-Fock-Bogoliubov approach We analyze how the structure of the inner crust is influenced by the pairing correlations. The inner ...
Q.1. What are the applications of quantum physics? Answer. Principles of quantum physics are useful in developing modern-day technologies like MRIs, spectroscopy, CDs etc. It is also responsible for the understanding of the working principle of stars, galaxies and the properties of our atoms, ...
Gravitationally redshifted absorption lines in the X-ray burst spectra of a neutron star. The fundamental properties of neutron stars provide a direct test of the equation of state of cold nuclear matter, a relationship between pressure and dens... Cottam,J.,Paerels,... - 《Nature》 被引量...
why the behaviour of the atomic world should conform to that of the familiar, large-scale world. It is important to realize that quantum mechanics is a branch ofphysicsand that the business of physics is to describe and account for the way the world—on both the large and the small scale...