We start with a brief introduction to the historical background in the early pioneering days when the first neutron star thermal evolution calculations predicted the presence of neutron stars hot enough to be observable. We then report on the first detection of neutron star temperatures by ROSAT X...
We then consider a model for the spectrum of the X-ray emission from the disk, parameterized by the mass accretion rate, the color temperature and the rotation rate of the neutron star. We derive constraints on these parameters for the X-ray source Cygnus X-2 using the estimates of the ...
The presence of a mixed-phase region softens the EOS and open the possibility of a direct explosion. At larger densities the EOS is stiff enough to support a neutron star compatible with observations.doi:10.1088/0954-3899/25/5/302A. Drago...
Neutron Stars. I. Properties at Absolute Zero Temperature The properties of a neutron star at absolute zero temperature are discussed. The problem of determining the ground state of a neutron star is formulated in... JN Bahcall,RA Wolf - 《Physical Review》 被引量: 72发表: 1965年 Decoherence...
that makes a bright explosion (supernova) at this point, the heavier elements are finally created if the leftover core is very, very dense, it may form a very small neutron star or a black hole with VERY powerful gravity Cosmology How did the cosmos begin, and what will happen to it?
Using these methods thermal Nyquist noise is reduced such that the antenna effective temperature is reduced to a few microdegrees. A world-wide array of detectors should now allow any gravitational collapse which gives rise to the birth of a neutron star or black hole to be detected anywhere ...
(a) A red star (b) A blue star? Temperature: The presence of the intensity of the heat in any object is termed as the temperature. The help of the thermometer can estimate the temperature of any object. The temperature can give an idea about the hotness as well as the col...
chemically react with fuels or structural materials even at high temperatures. In addition, there is no phase change in the operating temperature range, and helium gas has almost no nuclear effects such as neutron deceleration and absorption, and therefore does not affect the nuclear reaction of ...
The very-high-temperature reactor (VHTR) (seeFig. 4.30) is a further step in the evolutionary development of high-temperature reactors (HTRs). The VHTR is a helium-gas-cooled, graphite-moderated, thermal-neutron-spectrum reactor with a core outlet temperature >900°C, and a goal of 1000°...
astrophysics.Forinstance,itisimportantforthestudyofthestructureandreactionsofneutron- richnuclei,theTypeIIsupernovaexplosions,neutron-starmergersandthestabilityofneutron stars.Sofar,themainpartofthecalculationsconcerningthedensitydependenceoftheSEis relatedwiththecoldnuclearmatter(T=0).However,recently,thereisanincrea...