Tidal Disruptions of White Dwarfs from Ultra
... Rosswog et al. 2009) and others hydrodynamic grid-based codes (Guillochon et al. 2009). The studies by Rosswog et al. (2009) included nuclear reactions with simplified networks. On the other hand, Bogdanović et al. (2004) looked at the formation of spherical envelopes Loeb & Ulmer (1997) using SPH ...
... Rosswog et al. 2009) and others hydrodynamic grid-based codes (Guillochon et al. 2009). The studies by Rosswog et al. (2009) included nuclear reactions with simplified networks. On the other hand, Bogdanović et al. (2004) looked at the formation of spherical envelopes Loeb & Ulmer (1997) using SPH ...
screen pdf: 1.8 Mo, 186 p. - IMJ-PRG
... On the Brahmagupta–Fermat–Pell equation The equation x2 dy 2 = ±1, where the unknowns x and y are positive integers while d is a fixed positive integer which is not a square, has been mistakenly called with the name of Pell by Euler. It was investigated by Indian mathematicians since Brahmagupta (6 ...
... On the Brahmagupta–Fermat–Pell equation The equation x2 dy 2 = ±1, where the unknowns x and y are positive integers while d is a fixed positive integer which is not a square, has been mistakenly called with the name of Pell by Euler. It was investigated by Indian mathematicians since Brahmagupta (6 ...
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 ...
Recent developments in gravitational collapse and spacetime
... heavier elements. Eventually, when all matter is converted to iron, no more nuclear processes capable of producing energy are possible and no new internal energy is produced within the star. The all-pervasive force of gravity then takes over to determine the final fate and evolution of such a star. ...
... heavier elements. Eventually, when all matter is converted to iron, no more nuclear processes capable of producing energy are possible and no new internal energy is produced within the star. The all-pervasive force of gravity then takes over to determine the final fate and evolution of such a star. ...
formation of z 6 quasars from hierarchical
... abundance of this population, have a large dynamic range to follow the hierarchical build-up of the quasar hosts, and include the hydrodynamics of the gas flows in galaxy mergers. The cutting-edge Millennium Simulation by Springel et al. (2005c) follows structure formation in a box with side length ...
... abundance of this population, have a large dynamic range to follow the hierarchical build-up of the quasar hosts, and include the hydrodynamics of the gas flows in galaxy mergers. The cutting-edge Millennium Simulation by Springel et al. (2005c) follows structure formation in a box with side length ...
Technological Singularity Pros and Cons
... value that transcends any finite limitations, such as the explosion of magnitude that results when dividing a constant by a number that gets closer and closer to zero. ...
... value that transcends any finite limitations, such as the explosion of magnitude that results when dividing a constant by a number that gets closer and closer to zero. ...
Star Captures by Quasar Accretion Disks: A Possible Explanation of
... contribution of stars and the gas disk), and if by chance the orbit becomes very eccentric the star may collide with the dense central part of the accretion disk. The gas drag force during the collision will then slow down the star by a velocity increment ∆v, resulting in a loss of orbital energy an ...
... contribution of stars and the gas disk), and if by chance the orbit becomes very eccentric the star may collide with the dense central part of the accretion disk. The gas drag force during the collision will then slow down the star by a velocity increment ∆v, resulting in a loss of orbital energy an ...
Regions Near the Libration Points Suitable to Maintain Multiple
... that context, space-based observatory and interferometry missions, such as the Terrestrial Planet Finder, have been the motivation for the analysis of many control strategies. Gómez et al. investigate discrete control methods to maintain the relatively small formation.4 Howell and Marchand consider ...
... that context, space-based observatory and interferometry missions, such as the Terrestrial Planet Finder, have been the motivation for the analysis of many control strategies. Gómez et al. investigate discrete control methods to maintain the relatively small formation.4 Howell and Marchand consider ...
Summary - X-ray Astronomy Group at ISAS
... • angular resolution • sensitivity XMM/Chandra are ideally suited for • extending previous studies to fainter, higher redshift, higher – and lower luminosity systems • detailed studies of many bright low redshift objects. • critical progress in the temporal/spectral domain Combined with other facili ...
... • angular resolution • sensitivity XMM/Chandra are ideally suited for • extending previous studies to fainter, higher redshift, higher – and lower luminosity systems • detailed studies of many bright low redshift objects. • critical progress in the temporal/spectral domain Combined with other facili ...
f(R) Gravity and Cosmology - Workspace
... special relativity of local inertial reference frames to more general accelerated reference frames, and at the same time, recasting gravitational fields as being nothing more than the fictitious forces felt by observers at rest in these accelerated reference frames[1]. The theory posited that what h ...
... special relativity of local inertial reference frames to more general accelerated reference frames, and at the same time, recasting gravitational fields as being nothing more than the fictitious forces felt by observers at rest in these accelerated reference frames[1]. The theory posited that what h ...
Systems of linear equations, Gaussian elimination
... ICS 6N Computational Linear Algebra Systems of Linear Equations Xiaohui Xie University of California, Irvine ...
... ICS 6N Computational Linear Algebra Systems of Linear Equations Xiaohui Xie University of California, Irvine ...
4.3 Notes - Denton ISD
... quadratic equations; some have real number solutions, others nonreal or complex solutions. In small groups, students draw a card and state whether the solution is real or not real. They then answer the question “How do you know?” Players take turns and sort cards into piles according to the kind of ...
... quadratic equations; some have real number solutions, others nonreal or complex solutions. In small groups, students draw a card and state whether the solution is real or not real. They then answer the question “How do you know?” Players take turns and sort cards into piles according to the kind of ...
Finding Complex Solutions of Quadratic Equations
... students several quadratic equations for which b 2 - 4ac is positive, some with rational solutions, and some with irrational solutions. Ask them to make a conjecture about how the value of the discriminant is related to whether the solutions are rational or irrational. Students should be able to exp ...
... students several quadratic equations for which b 2 - 4ac is positive, some with rational solutions, and some with irrational solutions. Ask them to make a conjecture about how the value of the discriminant is related to whether the solutions are rational or irrational. Students should be able to exp ...
The masses and spins of neutron stars and stellar
... performed, all such data are restricted to weak gravity, in the sense that GM /rc 2 (where G and c are respectively Newton’s gravitational constant and the speed of light, M is the gravitational mass of an object, and r is size of the source, e.g., the separation between the two neutron stars in a b ...
... performed, all such data are restricted to weak gravity, in the sense that GM /rc 2 (where G and c are respectively Newton’s gravitational constant and the speed of light, M is the gravitational mass of an object, and r is size of the source, e.g., the separation between the two neutron stars in a b ...
Cosmic Strings - University of Amsterdam
... The Kibble mechanism states that when a topological defect can form at a phase transition, it will form. This statement is based on the argument that different regions in space cannot communicate with each other. In the early universe causal effects propagated with the speed of light. Different regi ...
... The Kibble mechanism states that when a topological defect can form at a phase transition, it will form. This statement is based on the argument that different regions in space cannot communicate with each other. In the early universe causal effects propagated with the speed of light. Different regi ...
Dynamics of an electric current-carrying string loop near a
... oscillatory to the linear mode is possible [1,2,10] and in the preceding paper [3] we have estimated its efficiency and studied the role of the cosmic repulsion, that can be, surprisingly, relevant in astrophysical phenomena [4]. Here we extend our previous research to the case when the black hole i ...
... oscillatory to the linear mode is possible [1,2,10] and in the preceding paper [3] we have estimated its efficiency and studied the role of the cosmic repulsion, that can be, surprisingly, relevant in astrophysical phenomena [4]. Here we extend our previous research to the case when the black hole i ...