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Mach-numbers in a simulation of convection in the sub-giant Eta Boo

 

Photo info

  • Title: Mach-numbers in a simulation of convection in the sub-giant Eta Boo
  • Description: The mach-number is the local speed in units of the local sound speed, with values above 1 being super-sonic. The highest value in this particular snapshot is about 2.1 (the white spot). The blue areas on the surface correspond to the granules, the surface manifestation of the slow hot up-welling from the interior, and the red "lines" outline the edges of granules, with the cool down-drafts being squeezed in between. The simulation is about 36 by 36 by by 14 Mm (the Earth is about 6.4 Mm i radius).



    €йRegner Trampedach, Robert F. Stein and & Aringke Nordlund.

    NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission.
  • File name: eta_mach3d.jpg
  • Owner: Gallery Administrator
  • Dimensions: 728 x 635 px

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  • Vertical cross-section of an A9 main sequence star
  • Mach-numbers in a simulation of convection in the sub-giant Eta Boo
  • Surface intensity of a Solar simulation
  • Temperature contrast in part of a Solar simulation
  • Side-view of the temperatures in a simulation of a white dwarf
  • Side-view of the temperatures in a simulation of the sub-giant Eta Bootes

Mach-numbers in a simulation of convection in the sub-giant Eta Boo

  Mach-numbers in a simulation of convection in the sub-giant Eta Boo         More
Mach-numbers in a simulation of convection in the sub-giant Eta Boo The mach-number is the local speed in units of the local sound speed, with values above 1 being super-sonic. The highest value in this particular snapshot is about 2.1 (the white spot). The blue areas on the surface correspond to the granules, the surface manifestation of the slow hot up-welling from the interior, and the red "lines" outline the edges of granules, with the cool down-drafts being squeezed in between. The simulation is about 36 by 36 by by 14 Mm (the Earth is about 6.4 Mm i radius).

€йRegner Trampedach, Robert F. Stein and & Aringke Nordlund.
NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission.