X-ray Observations of Cosmic Accelerators Greg Madejski SLAC/KIPAC
... -> Flares come from dissipation of gravitational energy What is the origin of the hot plasma? Observed X-ray spectra (up to at least 100 keV) indicate that accretion disks must be sites of vigorous particle acceleration - Most likely associated with “plasma viscosity” provided by the magneto-rotatio ...
... -> Flares come from dissipation of gravitational energy What is the origin of the hot plasma? Observed X-ray spectra (up to at least 100 keV) indicate that accretion disks must be sites of vigorous particle acceleration - Most likely associated with “plasma viscosity” provided by the magneto-rotatio ...
Estudio de la tasa de reacción 30P(alfa, p)33S de interés as
... Type I XRBs are a subset of low mass X-ray binaries (LMXBs). Type I XRBs and LMXBs have the same spatial distribution, both being concentrated towards the galactic center as shown in Fig. 1. XRBs are also found in globular clusters. Recently, the first extragalactic XRBs were discovered in two cand ...
... Type I XRBs are a subset of low mass X-ray binaries (LMXBs). Type I XRBs and LMXBs have the same spatial distribution, both being concentrated towards the galactic center as shown in Fig. 1. XRBs are also found in globular clusters. Recently, the first extragalactic XRBs were discovered in two cand ...
WG2 Overview Protons and Ions Accelerators (G
... Major initiatives are well underway for ion accelerators for nuclear astrophysics, such as FRIB, RAON and others. With the success of SNS, high intensity proton accelerator projects are progressing, such as ESS, PIP-II, Indian SNS, along with ADS ambitions, such as CADS and IADS. The aim of WG2 is t ...
... Major initiatives are well underway for ion accelerators for nuclear astrophysics, such as FRIB, RAON and others. With the success of SNS, high intensity proton accelerator projects are progressing, such as ESS, PIP-II, Indian SNS, along with ADS ambitions, such as CADS and IADS. The aim of WG2 is t ...
THE ENTROPIC ENERGY DENSITY PROGRESSION PRINCIPLE
... This means that while appearing to be random energies, as a whole they constitute an ordered distribution. In the P = nk T/V Gas Law, ordered pressure exists because the nkT random thermal energy is factored by the volume's degrees of freedom, and in the kinetic theory of gases each individual mole ...
... This means that while appearing to be random energies, as a whole they constitute an ordered distribution. In the P = nk T/V Gas Law, ordered pressure exists because the nkT random thermal energy is factored by the volume's degrees of freedom, and in the kinetic theory of gases each individual mole ...
Development of Trap-assisted spectroscopy and its application to
... The mass determination has been the primary motivation of the use of Penning traps in nuclear physics. However, in the recent years the beam preparation traps have become more widely used, not simply for the purification of an ion beam prior to a precision mass measurement. For example the beam mani ...
... The mass determination has been the primary motivation of the use of Penning traps in nuclear physics. However, in the recent years the beam preparation traps have become more widely used, not simply for the purification of an ion beam prior to a precision mass measurement. For example the beam mani ...
Finite Temperature Effects in the White Dwarf - Padis
... This thesis is in the context of the physics astrophysics of compact stars. In this work we explore in particular the thermal properties of white dwarfs and neutron stars. As we will show in chapter 3, the mass-radius relation of white dwarfs in the zero-temperature approximation deviates considerab ...
... This thesis is in the context of the physics astrophysics of compact stars. In this work we explore in particular the thermal properties of white dwarfs and neutron stars. As we will show in chapter 3, the mass-radius relation of white dwarfs in the zero-temperature approximation deviates considerab ...
Here - HESPERIA
... University of Wuerzburg, D-97074 Wuerzburg, Germany The appearances of solar energetic particle events in interplanetary space around the Earth’s orbit, i.e., intensity-time profiles, anisotropies, energy spectra and elemental abundance ratios are determined by a combination of the underlying accele ...
... University of Wuerzburg, D-97074 Wuerzburg, Germany The appearances of solar energetic particle events in interplanetary space around the Earth’s orbit, i.e., intensity-time profiles, anisotropies, energy spectra and elemental abundance ratios are determined by a combination of the underlying accele ...
Neutron Stars – Cooling and Transport
... their connection with other neutron star classes. Some results of such calculations will be discussed in Sect. 6. cv eΦ ...
... their connection with other neutron star classes. Some results of such calculations will be discussed in Sect. 6. cv eΦ ...
Laser ion acceleration – principle and applications - Heinrich
... • with a high intensity (about 1019 W/cm2 or more) • that will not perturb or even burn the target before the main pulse arrives (high contrast) ...
... • with a high intensity (about 1019 W/cm2 or more) • that will not perturb or even burn the target before the main pulse arrives (high contrast) ...
Merger of binary neutron stars with realistic equations of state in full
... full general relativity. Hybrid equations of state are adopted to mimic realistic nuclear equations of state. In this approach, we divide the equations of state into two parts as P Pcold Pth . Pcold is the cold part for which we assign a fitting formula for realistic equations of state of cold n ...
... full general relativity. Hybrid equations of state are adopted to mimic realistic nuclear equations of state. In this approach, we divide the equations of state into two parts as P Pcold Pth . Pcold is the cold part for which we assign a fitting formula for realistic equations of state of cold n ...
Cosmology, Thermodynamics and Time
... MeV for gravitation. The only change is that potential energy is converted to kinetic energy and back over time. Cells have a specific kinetic energy depending on their history. Ordinary mass takes more time to travel and only completes a segment of the cellular circle against the standard 1.54e-21 ...
... MeV for gravitation. The only change is that potential energy is converted to kinetic energy and back over time. Cells have a specific kinetic energy depending on their history. Ordinary mass takes more time to travel and only completes a segment of the cellular circle against the standard 1.54e-21 ...
1. The figure below represents the planet Jupiter. The centre of the
... The equation of state of an ideal gas is pV = nRT. Data about gases are often given in terms of density rather than volume V. Show that the equation of state for a gas can be written as p = RT/M where M is the mass of one mole of gas. ...
... The equation of state of an ideal gas is pV = nRT. Data about gases are often given in terms of density rather than volume V. Show that the equation of state for a gas can be written as p = RT/M where M is the mass of one mole of gas. ...
Nuclear effects in atomic transitions
... Atomic and nuclear physics historically share a common ancestry. When Niels Bohr proposed in 1913 his first model of the atom, he depicted it as having a small and dense positively charged nucleus, surrounded by the orbiting electrons. The existence of the electron, a discrete unit of negative charg ...
... Atomic and nuclear physics historically share a common ancestry. When Niels Bohr proposed in 1913 his first model of the atom, he depicted it as having a small and dense positively charged nucleus, surrounded by the orbiting electrons. The existence of the electron, a discrete unit of negative charg ...
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.