Slides - Indico
... H = Hubble constant G = Newton's gravitational constant = energy density (i.e. photons and neutrinos density in the early Universe) ...
... H = Hubble constant G = Newton's gravitational constant = energy density (i.e. photons and neutrinos density in the early Universe) ...
ACCELERATION DUE TO GRAVITY OF A RAPIDLY ROTATING
... Normal gas pressure cant support the core left behind, supernova explosion. If the mass is more than ≈1.44M electron degeneracy pressure can’t support it. The core can’t be a white dwarf and as the density increases electrons and protons are forced together to make neutrons, which in turn form a ne ...
... Normal gas pressure cant support the core left behind, supernova explosion. If the mass is more than ≈1.44M electron degeneracy pressure can’t support it. The core can’t be a white dwarf and as the density increases electrons and protons are forced together to make neutrons, which in turn form a ne ...
A T S O U
... rather than Λ̄c baryons, while that for producing D̄ rather than D mesons for this range of s. ...
... rather than Λ̄c baryons, while that for producing D̄ rather than D mesons for this range of s. ...
引力产生于碰撞——兼论万有引力场的演变及宇宙的起源
... nucleus, and the pressure generated from the gravity inside sphere-shaped celestial body gathered by single proton with the same mass is much more bigger than the pressure inside sphere-shed cohesion body where many nucleus combine into atomic nucleus( three times less). Through study on mutual grav ...
... nucleus, and the pressure generated from the gravity inside sphere-shaped celestial body gathered by single proton with the same mass is much more bigger than the pressure inside sphere-shed cohesion body where many nucleus combine into atomic nucleus( three times less). Through study on mutual grav ...
JOURNAL OF CONDENSED MATTER NUCLEAR SCIENCE Experiments and Methods in Cold Fusion
... to produce useful heat in a transient DD fusion environment via transient cavitation bubbles, TCBs, in circulating D2 O. A resonating piezo is the source of the sonofusion driven acoustic power. The feedback oscillator driven piezos produce a variable size bubble population where the natural individ ...
... to produce useful heat in a transient DD fusion environment via transient cavitation bubbles, TCBs, in circulating D2 O. A resonating piezo is the source of the sonofusion driven acoustic power. The feedback oscillator driven piezos produce a variable size bubble population where the natural individ ...
Quantities and units — Part 10: Atomic and nuclear physics
... when b represents the standard uncertainty (estimated standard deviation) in the last digits of a. The numerical example given above may be interpreted to mean that the best estimate of the numerical value of the length l, when l is expressed in the unit metre is 2.347 82, and that the unknown value ...
... when b represents the standard uncertainty (estimated standard deviation) in the last digits of a. The numerical example given above may be interpreted to mean that the best estimate of the numerical value of the length l, when l is expressed in the unit metre is 2.347 82, and that the unknown value ...
Coherent Control of Polarized Neutron Interferometry
... interferometer to separate two paths where spin states are independently manipulated. The final measurement is made on the spin degree of freedom, so we observe spinbased contrast without a need for coherence in the path degree of freedom. This is difficult to achieve in a spin-echo interferometer b ...
... interferometer to separate two paths where spin states are independently manipulated. The final measurement is made on the spin degree of freedom, so we observe spinbased contrast without a need for coherence in the path degree of freedom. This is difficult to achieve in a spin-echo interferometer b ...
The Inner Coma and Nucleus of Comet Hale–Bopp
... et al. (1996) report the observation of a star’s complete disappearance behind the centaur (2060) = 95P/Chiron, but the low activity, large nucleus, and regular orbit of this “comet” mark this as a special case. Though most previous data on cometary occultations were obtained at permanent observator ...
... et al. (1996) report the observation of a star’s complete disappearance behind the centaur (2060) = 95P/Chiron, but the low activity, large nucleus, and regular orbit of this “comet” mark this as a special case. Though most previous data on cometary occultations were obtained at permanent observator ...
L31 ON THE DISAPPEARANCE OF KILOHERTZ QUASI
... study of the evolution of kHz QPOs with mass accretion rate because of the large dynamical range that they provide during an X-ray outburst. Unfortunately, they are very few in number, and even fewer undergo outbursts on timescales short enough that they can be observed. Nevertheless, high-quality d ...
... study of the evolution of kHz QPOs with mass accretion rate because of the large dynamical range that they provide during an X-ray outburst. Unfortunately, they are very few in number, and even fewer undergo outbursts on timescales short enough that they can be observed. Nevertheless, high-quality d ...
The double-pulsar PSR J0737−3039A/B
... naries exhibit large relativistic effects. PSR J0737−3039A/B promises to ensure the best tests of General relativity and other theories of gravity than ever before. Tests can be performed when a number of relativistic corrections to the Keplerian description of the orbit (the so-called post-Kepleria ...
... naries exhibit large relativistic effects. PSR J0737−3039A/B promises to ensure the best tests of General relativity and other theories of gravity than ever before. Tests can be performed when a number of relativistic corrections to the Keplerian description of the orbit (the so-called post-Kepleria ...
nuclear processes in deuterium/natural hydrogen
... hold a special place in the research of nuclear reactions in a condensed matter. The statements made by Mills and Kneizys in 1991 [12] about excess heat production in their electrolysis experiments using nickel as a cathode material and the K2 CO3 solution in light water as an electrolyte, were unex ...
... hold a special place in the research of nuclear reactions in a condensed matter. The statements made by Mills and Kneizys in 1991 [12] about excess heat production in their electrolysis experiments using nickel as a cathode material and the K2 CO3 solution in light water as an electrolyte, were unex ...
Vicky Kaspi Chandra Anomalous X-ray Pulsars Fotis Gavriil
... • SGRs (5): giant flares, short bursts, spectral changes, pulse profile changes, timing anomalies… • AXPs (9): short bursts, outbursts, slow flux changes, long-lived flares, glitches… – Most recognized only since 2002 ...
... • SGRs (5): giant flares, short bursts, spectral changes, pulse profile changes, timing anomalies… • AXPs (9): short bursts, outbursts, slow flux changes, long-lived flares, glitches… – Most recognized only since 2002 ...
Universitat Autònoma de Barcelona Observing the VHE Gamma Ray Sky
... and Cesarsky, 1983). From the discovery of very narrow X-ray filaments (VHlk et al., 2005) in the shock regions of supernova remnants it is known that the magnetic flux density can be up to two or three orders of magnitude higher, from ∼ 10−10 T to ∼ 10−8 T; with these values the above equation pred ...
... and Cesarsky, 1983). From the discovery of very narrow X-ray filaments (VHlk et al., 2005) in the shock regions of supernova remnants it is known that the magnetic flux density can be up to two or three orders of magnitude higher, from ∼ 10−10 T to ∼ 10−8 T; with these values the above equation pred ...
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.