Gravitational Radiation from Rotating White Dwarfs and
... wide frequency spectrum from ~10-9Hz all the way up to~104Hz. The coverage of the spectrum is not complete and the gap between space-based interferometer and ground-based interferometers has been proposed as a possible “window”, devoid of continuous foreground sources, through which the cosmological ...
... wide frequency spectrum from ~10-9Hz all the way up to~104Hz. The coverage of the spectrum is not complete and the gap between space-based interferometer and ground-based interferometers has been proposed as a possible “window”, devoid of continuous foreground sources, through which the cosmological ...
Dark Matter NS Warsaw
... ▸ Since the dark matter density near the Galactic center is significantly higher than regions near the solar position (where the oldest pulsars have been found) there is a parameter space where dark matter accumulation may solve the missing pulsar problem. ...
... ▸ Since the dark matter density near the Galactic center is significantly higher than regions near the solar position (where the oldest pulsars have been found) there is a parameter space where dark matter accumulation may solve the missing pulsar problem. ...
nuclear gravitation field theory
... 1. If the Strong Nuclear Force is Gravity, then the Nuclear Gravitation Field must initially be a stronger field of attraction than the Coulombic repulsive field of the Nuclear Electric Field tending to repel Protons from the Nucleus. 2. If the Strong Nuclear Force is Gravity, then the Nuclear Gravi ...
... 1. If the Strong Nuclear Force is Gravity, then the Nuclear Gravitation Field must initially be a stronger field of attraction than the Coulombic repulsive field of the Nuclear Electric Field tending to repel Protons from the Nucleus. 2. If the Strong Nuclear Force is Gravity, then the Nuclear Gravi ...
Introduction to the Weak Interaction, Volume 1
... observed were very similar to those produced by 'soft' Laue-Bragg x-rays (13) , which was satisfactory, since the electrons' wavelength as predicted by de Broglie' s relation was very similar to that of these x-rays . Thomson performed a similar experiment of a more spectacular natur e using the De ...
... observed were very similar to those produced by 'soft' Laue-Bragg x-rays (13) , which was satisfactory, since the electrons' wavelength as predicted by de Broglie' s relation was very similar to that of these x-rays . Thomson performed a similar experiment of a more spectacular natur e using the De ...
Inertial fusion advance towards ignition
... intensities 1018-21w/cm2 for each beam. Interaction of the petawatt (PW) laser with matter may accelerate charged particles (electrons, protons and heavy ions) to kinetic energy over GeV. The acceleration of high-energy charged particle beam generated from interaction of an intense laser with solid ...
... intensities 1018-21w/cm2 for each beam. Interaction of the petawatt (PW) laser with matter may accelerate charged particles (electrons, protons and heavy ions) to kinetic energy over GeV. The acceleration of high-energy charged particle beam generated from interaction of an intense laser with solid ...
PHY202 - National Open University of Nigeria
... nucleus. We would start by describing the basic properties of the nuclei, and this description will be followed by discussion of binding energy, nuclear models, and the phenomenon of radioactivity. We would discuss radioactive decay series and the various processes by which nuclei decay. The underst ...
... nucleus. We would start by describing the basic properties of the nuclei, and this description will be followed by discussion of binding energy, nuclear models, and the phenomenon of radioactivity. We would discuss radioactive decay series and the various processes by which nuclei decay. The underst ...
Thermal emission and internal heating processes in millisecond
... • Observed UV emission of PSR J0437-4715 may be due to rotochemical heating • The same emission can be used to constrain |dG/dt|: – competitive with best existing constraints if fast cooling processes could be ruled out ...
... • Observed UV emission of PSR J0437-4715 may be due to rotochemical heating • The same emission can be used to constrain |dG/dt|: – competitive with best existing constraints if fast cooling processes could be ruled out ...
Chapter 5 Stellar Energy Production
... chain in energy production as soon as the mass exceeds about a solar mass. • The reason for this rapid switchover is that the PP chain and the CNO cycle have strong and very different dependence on temperature. ...
... chain in energy production as soon as the mass exceeds about a solar mass. • The reason for this rapid switchover is that the PP chain and the CNO cycle have strong and very different dependence on temperature. ...
Chapter 13 NUCLEAR FUSION
... As to the triton, does our Theory of Everything tell us anything about that? Well, yes, it does. It can even show how to derive that 12 year lifetime, as is of record at pages 41-43 of my ENERGY SCIENCE REPORT No. 5, already mentioned. The paper there referenced was, I may mention, presented by me a ...
... As to the triton, does our Theory of Everything tell us anything about that? Well, yes, it does. It can even show how to derive that 12 year lifetime, as is of record at pages 41-43 of my ENERGY SCIENCE REPORT No. 5, already mentioned. The paper there referenced was, I may mention, presented by me a ...
Shockingly Bright Pulsar - Astronomical Society of the Pacific
... •ULXs were previously all suspected to be “intermediate mass” black holes—black holes up to a few hundred solar masses--accreting matter that heated and emitted Xrays in large quantities. •Now, astronomers have to explain how a stellar-mass pulsar can act as extremely as a black hole. ...
... •ULXs were previously all suspected to be “intermediate mass” black holes—black holes up to a few hundred solar masses--accreting matter that heated and emitted Xrays in large quantities. •Now, astronomers have to explain how a stellar-mass pulsar can act as extremely as a black hole. ...
Death - Wayne State University Physics and Astronomy
... Death of Massive Stars • Rare high-mass stars (masses of 5 - 50 times the Sun's mass in main sequence stage) end their life in a different way • When a massive star's iron core implodes, the protons and electrons fuse together to form neutrons and neutrinos • The core, once the size of the Earth, b ...
... Death of Massive Stars • Rare high-mass stars (masses of 5 - 50 times the Sun's mass in main sequence stage) end their life in a different way • When a massive star's iron core implodes, the protons and electrons fuse together to form neutrons and neutrinos • The core, once the size of the Earth, b ...
Beamline Instrumentation for Future Parity-Violation Experiments Robert Michaels
... resonator technology shows great potential for use in applications that require precision control, measurement and sensing at the quantum limit[1]. This is mainly due to the relatively high mechanical frequencies and extremely high Q-factors achievable in such devices at cryogenic temperatures (Q > ...
... resonator technology shows great potential for use in applications that require precision control, measurement and sensing at the quantum limit[1]. This is mainly due to the relatively high mechanical frequencies and extremely high Q-factors achievable in such devices at cryogenic temperatures (Q > ...
Undergraduate Project in Physics Alon Grubshtein Guided by Prof. Eduardo Guendelman
... reactions rapidly diminish after making helium. Small amounts of other light elements are made, but it is not possible to make significant amounts of heavier nuclei such as carbon (mass 12). These require higher densities such as those found in stellar interiors, to allow three helium nuclei to fuse ...
... reactions rapidly diminish after making helium. Small amounts of other light elements are made, but it is not possible to make significant amounts of heavier nuclei such as carbon (mass 12). These require higher densities such as those found in stellar interiors, to allow three helium nuclei to fuse ...
Nuclear drip line
In nuclear physics, the boundaries for nuclear particle-stability are called drip lines. Atomic nuclei contain both protons and neutrons—the number of protons defines the identity of that element (ie, carbon always has 6 protons), but the number of neutrons within that element may vary (carbon-12 and its isotope carbon-13, for example). The number of isotopes each element may have is visually represented by plotting boxes, each of which represents a unique nuclear species, on a graph with the number of neutrons increasing on the abscissa (X axis) and number of protons increasing along the ordinate (Y axis). The resulting chart is commonly referred to as the table of nuclides, and is to nuclear physics what the periodic table of the elements is to chemistry.An arbitrary combination of protons and neutrons does not necessarily yield a stable nucleus. One can think of moving up and/or to the right across the nuclear chart by adding one type of nucleon (i.e. a proton or neutron, both called nucleons) to a given nucleus. However, adding nucleons one at a time to a given nucleus will eventually lead to a newly formed nucleus that immediately decays by emitting a proton (or neutron). Colloquially speaking, the nucleon has 'leaked' or 'dripped' out of the nucleus, hence giving rise to the term ""drip line"". Drip lines are defined for protons, neutrons, and alpha particles, and these all play important roles in nuclear physics. The nucleon drip lines are at the extreme of the proton-to-neutron ratio: at p:n ratios at or beyond the driplines, no stable nuclei can exist. The location of the neutron drip line is not well known for most of the nuclear chart, whereas the proton and alpha driplines have been measured for a wide range of elements. The nucleons drip out of such unstable nuclei for the same reason that water drips from a leaking faucet: in the water case, there is a lower potential available that is great enough to overcome surface tension and so produces a droplet; in the case of nuclei, the emission of a particle from a nucleus, against the strong nuclear force, leaves the total potential of the nucleus and the emitted particle in a lower state. Because nucleons are quantized, only integer values are plotted on the table of isotopes; this indicates that the drip line is not linear but instead looks like a step function up close.