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The Constant-Sound-Speed parameterization of the quark matter EoS
The Constant-Sound-Speed parameterization of the quark matter EoS

... cores. Since little is known about the quark matter equation of state, we perform a model-independent study of the form of the mass-radius relation for hybrid stars, making only some generic assumptions about the quark matter EoS. The CSS parameterization of the EoS has three parameters: (1) at what ...
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Document

... Illustration of Blackhole ...
STELLAR FORMATION AND EVOLUTION
STELLAR FORMATION AND EVOLUTION

... not 'burn.' The buildup of iron at the core of a very massive star (for example, greater than about 10 solar masses) signals the impending, violent death of the star. Immediately before its death, a massive star can burn silicon in a shell surrounding the iron-rich core. The core is about the size o ...
http://www.lanl.gov/orgs/adtsc/publications/science_highlights_2013/docs/Pg24_25.pdf
http://www.lanl.gov/orgs/adtsc/publications/science_highlights_2013/docs/Pg24_25.pdf

... progenitor that showed similar lightcurve characteristics and modified the wind profile to obtain a closer match. We also tried a smaller 15-Msun progenitor that was intended to be a II-P progenitor, but has a lightcurve that drops off much earlier than that observed for 2012aw. The best fit we have ...
Evolved Massive Stars - University of Arizona
Evolved Massive Stars - University of Arizona

... • Wind driven by continuum opacity instead of line opacity • Photosphere lies in optically thick wind ...
Stellar Spectroscopy during Exoplanet Transits
Stellar Spectroscopy during Exoplanet Transits

... * Differential spectroscopy provides spectra of those surface segments that were hidden behind the planet * 3-D hydrodynamics studied in center-to-limb variations of line shapes, asymmetries and wavelength shifts * With sufficient S/N, also spectra of surface features such as starspots may become at ...
The Proton, “the smallest Quantum Vortex”
The Proton, “the smallest Quantum Vortex”

... or cytosine (C) connected at each step of the ladder by multiple hydrogen bonds and each base pair a two dimensional structure. This is the well-known structure called the Double Helix. (24) The simplicity of nature comes out again. Max Delbrück’s work was influenced by the work of Gregor Johann Me ...
Electric Force
Electric Force

... Electric Fields are invisible, the picture helps us imagine what it would look like if we could see it. ...
a black hole at the heart of the atom!
a black hole at the heart of the atom!

What The Star of Bethlehem Was Not
What The Star of Bethlehem Was Not

... meteor shower seen on just one occasion, early in the 20th Century, when a string of bright meteors crossed the sky from one side to the other, all appearing and disappearing at approximately the same points in the sky. Such a shower would be truly compelling to the Magi, especially if the meteors a ...
Chapter 22 Neutron Stars and Black Holes
Chapter 22 Neutron Stars and Black Holes

... Cygnus X-1 is a very strong black-hole candidate: • Its visible partner is about 25 solar masses. • The system’s total mass is about 35 solar masses, so the X-ray source must be about 10 solar masses. • Hot gas appears to be flowing from the visible star to an unseen companion. ...
Copyright 1995 Scientific American, Inc.
Copyright 1995 Scientific American, Inc.

... y all the astrophysical theories that existed before 1974, binary neutron stars should not have existed. Astronomers believed that the repeated stellar catastrophes needed to create them would disrupt any gravitational binding between two stars. Neutron stars are the remnants of massive stars, which ...
55-80 BIOGRAPHY_of_A STAR
55-80 BIOGRAPHY_of_A STAR

... Helium fusion does not begin until heated by collapse requires 100 MK since charge (+2)2 leads to 4 x greater repulsion than with 2 protons Fusion of 2 helium nuclei doesn’t work (8Be unstable), helium fusion must combine 3 He nuclei to make carbon ...
R. Delaunay
R. Delaunay

... react with neighboring molecules before the cluster dissociates (ps timescale). Thus, we observe a rich distribution of growth products (see Figure 1) [3]. The fast creation of reactive fragments is due to ion collisions with molecule nuclei, a process specific to ion interaction with matter. Classi ...
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transcript

J-Parc/MLF - Neutronsources.org
J-Parc/MLF - Neutronsources.org

... Remote handling devices ...
Aspects of Nuclear Physics and Astrophysics - Wiley-VCH
Aspects of Nuclear Physics and Astrophysics - Wiley-VCH

... planets contain much less mass but they underwent extensive chemical fractionation over the past 4.5 Gy since their formation (Cowley 1995). Among the more than 20,000 recovered meteorites, there are only five known CI carbonaceous chondrites. Although they contain a minuscule amount of matter, they ...
Chap. 17 Conceptual Modules Giancoli
Chap. 17 Conceptual Modules Giancoli

... 3) both feel the same acceleration 4) neither–there is no acceleration ...
Absolute Magnitudes of Supernovae
Absolute Magnitudes of Supernovae

... Figure 1: Six views of a distance galaxy with a supernova to the lower left of the galaxy. Notice the decreasing brightness and changing color of the supernova with time. (Hubble Space Telescope) ...
The Early Universe PowerPoint
The Early Universe PowerPoint

... – By t = 3 minutes, the Universe cooled even more • Gamma rays too weak to prohibit the synthesis process – Helium quickly formed ...
GLOSSARY
GLOSSARY

... Neutrino :【ニュートリノ】 A subatomic particle released during hydrogen burning in the centre of the Sun (see nuclear fusion and solar neutrino problem). Nuclear fusion : 【核融合】The joining of two or more atomic nuclei to form a new nucleus. In the Sun, hydrogen nuclei (each one proton) combine to form heliu ...
T3-W10-0501student
T3-W10-0501student

... mass stars expand into supergiants. ...
Stellar Evolution Simulation
Stellar Evolution Simulation

... In this activity, you will be tracing the lifecycle of several different types of stars. First, go onto http://www.planetseed.com/laboratory/virtual-experiment-build-your-own-star. You will want to keep this website open as it lists some terms that you might not be familiar with. Read through the pa ...
The title of my PDF
The title of my PDF

... r-process (Kostka et al. 2014b). Each fission event ejects (or releases) several (∼ 5−10) neutrons back into the r-processing system. (This is due to neutron evaporation during asymmetric fission and is same mechanism present in nuclear reactors.) Because of this, once these fissionable elements are ...
The Science with high intensity stable ion beams --Beam
The Science with high intensity stable ion beams --Beam

... Beam intensity limitations due to electronics and data acquisition: up to 100pnA Categories 2: ‘Studies at the focal plan (of a spectrometer)’ Beam intensity limitations due to target technology: up to 10 to 100pmA ...
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P-nuclei



p-Nuclei (p stands for proton-rich) are certain proton-rich, naturally occurring isotopes of some elements between selenium and mercury which cannot be produced in either s- or r-process.
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