Zobrazeno 1 - 10
of 31
pro vyhledávání: '"New, Kimberly C. B."'
Autor:
Fujita, Akimi, Martin, Crystal L., Mac Low, Mordecai-Mark, New, Kimberly C. B., Weaver, Robert
Publikováno v:
Astrophys.J.698:693-714,2009
We study the origin of Na I absorbing gas in ultraluminous infrared galaxies motivated by the recent observations by Martin of extremely superthermal linewidths in this cool gas. We model the effects of repeated supernova explosions driving supershel
Externí odkaz:
http://arxiv.org/abs/0803.2892
Autor:
New, Kimberly C. B.
Publikováno v:
Living Rev.Rel.6:2,2003
Gravitational wave emission from the gravitational collapse of massive stars has been studied for more than three decades. Current state of the art numerical investigations of collapse include those that use progenitors with realistic angular momentu
Externí odkaz:
http://arxiv.org/abs/gr-qc/0206041
One interesting class of gravitational radiation sources includes rapidly rotating astrophysical objects that encounter dynamical instabilities. We have carried out a set of simulations of rotationally induced instabilities in differentially rotating
Externí odkaz:
http://arxiv.org/abs/gr-qc/0101071
Publikováno v:
Astrophys.J. 550 (2001) L193-L196
Dynamical instability is shown to occur in differentially rotating polytropes with N = 3.33 and $T/|W| \gtrsim 0.14$. This instability has a strong m=1 mode, although the m=2, 3, and 4 modes also appear. Such instability may allow a centrifugally-hun
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010574
Publikováno v:
Astrophys.J. 548 (2001) 439-446
Thermal emission from a rotating, supermassive star will cause the configuration to contract slowly and spin up. If internal viscosity and magnetic fields are sufficiently weak, the contracting star will rotate differentially. For each of the six ini
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010172
Publikováno v:
Class.Quant.Grav. 18 (2001) 3965-3976
The existence of supermassive black holes is supported by a growing body of observations. Supermassive black holes and their formation events are likely candidates for detection by proposed long-wavelength, space-based gravitational wave interferomet
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009095
Autor:
New, Kimberly C. B., Choi, Dae-Il, Centrella, Joan M., MacNeice, Peter, Huq, Mijan F., Olson, Kevin
Publikováno v:
Phys.Rev. D62 (2000) 084039
Adaptive techniques are crucial for successful numerical modeling of gravitational waves from astrophysical sources such as coalescing compact binaries, since the radiation typically has wavelengths much larger than the scale of the sources. We have
Externí odkaz:
http://arxiv.org/abs/gr-qc/0007045
Publikováno v:
Phys.Rev.D62:064019,2000
Compact astrophysical objects that rotate rapidly may encounter the dynamical ``bar instability.'' The bar-like deformation induced by this rotational instability causes the object to become a potentially strong source of gravitational radiation. We
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911525
Publikováno v:
Astrophys.J. 503 (1998) 632
Warped H I gas layers in the outer regions of spiral galaxies usually display a noticeably twisted structure. This structure almost certainly arises primarily as a result of differential precession in the H I disk as it settles toward a preferred ori
Externí odkaz:
http://arxiv.org/abs/astro-ph/9803270
Publikováno v:
Phys.Rev. D58 (1998) 064022
The 3-level leapfrog time integration algorithm is an attractive choice for numerical relativity simulations since it is time-symmetric and avoids non-physical damping. In Newtonian problems without velocity dependent forces, this method enjoys the a
Externí odkaz:
http://arxiv.org/abs/gr-qc/9801110