Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Balakrishna, Jayashree"'
This study discusses factors that keep women from entering science and technology, which include social stereotypes that they struggle against, lack of maternity leave and other basic human rights, and the climate that makes them leave research posit
Externí odkaz:
http://arxiv.org/abs/1808.05549
Publikováno v:
Front. Astron. Space Sci. 3:29 (2016)
We extend the work of Oppenheimer & Synder to model the gravitational collapse of a star to a black hole by including quantum mechanical effects. We first derive closed-form solutions for classical paths followed by a particle on the surface of the c
Externí odkaz:
http://arxiv.org/abs/1501.04250
Autor:
Bondarescu, Ruxandra, Bondarescu, Mihai, Hetényi, György, Boschi, Lapo, Jetzer, Philippe, Balakrishna, Jayashree
Publikováno v:
Geophys. J. Int. 2012, vol 191, pages 78-82
The geoid is the true physical figure of the Earth, a particular equipotential surface of the gravity field of the Earth that accounts for the effect of all subsurface density variations. Its shape approximates best (in the sense of least squares) th
Externí odkaz:
http://arxiv.org/abs/1209.2889
Publikováno v:
Astrophysical Journal Letters 715, (2010), L35
We discuss the thermal evolution and Bose-Einstein condensation of ultra-light dark matter particles at finite, realistic cosmological temperatures. We find that if these particles decouple from regular matter before Standard model particles annihila
Externí odkaz:
http://arxiv.org/abs/1001.0051
Publikováno v:
Phys.Rev.D77:024028,2008
Excited state soliton stars are studied numerically for the first time. The stability of spherically symmetric S-branch excited state oscillatons under radial perturbations is investigated using a 1D code. We find that these stars are inherently unst
Externí odkaz:
http://arxiv.org/abs/0710.4131
Autor:
Balakrishna, Jayashree, Bondarescu, Ruxandra, Daues, Gregory, Guzman, F. Siddhartha, Seidel, Edward
Publikováno v:
Class.Quant.Grav. 23 (2006) 2631-2652
Numerical results from a study of boson stars under nonspherical perturbations using a fully general relativistic 3D code are presented together with the analysis of emitted gravitational radiation. We have constructed a simulation code suitable for
Externí odkaz:
http://arxiv.org/abs/gr-qc/0602078
Autor:
Balakrishna, Jayashree
The study of the properties and dynamics of self-gravitating bosonic objects in Einstein gravity was conducted. We studied self-coupled boson stars and determined the quasinormal mode (QNM) frequencies of stable boson stars in spherical symmetry. The
Externí odkaz:
http://arxiv.org/abs/gr-qc/9906110
We investigate the gravitational evolution of dark matter halos made up of a massless bosonic field. The coupled Einstein-Klein-Gordon equations are solved numerically, showing that such a boson halo is stable and can be formed under a large class of
Externí odkaz:
http://arxiv.org/abs/gr-qc/9802054
Publikováno v:
Phys.Rev. D58 (1998) 044016
We study the dynamics of a self-gravitating scalar field solitonic object (boson star) in the Jordan-Brans-Dicke (BD) theory of gravity. We show dynamical processes of this system such as (i) black hole formation of perturbed equilibrium configuratio
Externí odkaz:
http://arxiv.org/abs/gr-qc/9712065
Publikováno v:
Phys.Rev. D58 (1998) 104004
The dynamical evolution of self-gravitating scalar field configurations in numerical relativity is studied. The previous analysis on ground state boson stars of non-interacting fields is extended to excited states and to fields with self couplings. S
Externí odkaz:
http://arxiv.org/abs/gr-qc/9712064