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Does the innermost occurrence distribution measure tidal dissipation, reveal a flow of giant planets, or both?

Autor: Taylor, S. F.

The occurrence distribution of the shortest period giant exoplanets as found by Kepler show a drop-off that is a remarkable match to the drop-off expected by taking migration due to tides in the star. We present a comparison that can show the level o

Externí odkaz: http://arxiv.org/abs/1206.1343

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First Results from the CHARA Array. I. An Interferometric and Spectroscopic Study of the Fast Rotator alpha Leonis (Regulus)

Autor: McAlister, H. A., Brummelaar, T. A. ten, Gies, D. R., Huang, W., Bagnuolo, Jr., W. G., Shure, M. A., Sturmann, J., Sturmann, L., Turner, N. H., Taylor, S. F., Berger, D. H., Baines, E. K., Grundstrom, E., Ogden, C., Ridgway, S. T., van Belle, G.

Publikováno v: Astrophys.J. 628 (2005) 439-452

We report on K-band interferometric observations of the bright, rapidly rotating star Regulus (type B7 V) made with the CHARA Array on Mount Wilson, California. Through a combination of interferometric and spectroscopic measurements, we have determin

Externí odkaz: http://arxiv.org/abs/astro-ph/0501261

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Simulations of small-scale turbulent dynamo

Autor: Schekochihin, A. A., Cowley, S. C., Taylor, S. F., Maron, J. L., McWilliams, J. C.

Publikováno v: Astrophys.J.612:276-307,2004

We report an extensive numerical study of the small-scale turbulent dynamo at large magnetic Prandtl numbers Pm. A Pm scan is given for the model case of low-Reynolds-number turbulence. We concentrate on three topics: magnetic-energy spectra and satu

Externí odkaz: http://arxiv.org/abs/astro-ph/0312046

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Saturated State of the Nonlinear Small-Scale Dynamo

Autor: Schekochihin, A. A., Cowley, S. C., Taylor, S. F., Hammett, G. W., Maron, J. L., McWilliams, J. C.

Publikováno v: Phys.Rev.Lett.92:084504,2004

We consider the problem of incompressible, forced, nonhelical, homogeneous and isotropic MHD turbulence with no mean magnetic field and large magnetic Prandtl number. This type of MHD turbulence is the end state of the turbulent dynamo, which generat

Externí odkaz: http://arxiv.org/abs/astro-ph/0308252

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From Small-Scale Dynamo to Isotropic MHD Turbulence

Autor: Schekochihin, A. A., Cowley, S. C., Taylor, S. F., Maron, J. L., McWilliams, J. C.

Publikováno v: Astrophys.SpaceSci.292:141-146,2004

We consider the problem of incompressible, forced, nonhelical, homogeneous, isotropic MHD turbulence with no mean magnetic field. This problem is essentially different from the case with externally imposed uniform mean field. There is no scale-by-sca

Externí odkaz: http://arxiv.org/abs/astro-ph/0306296

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