Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-06-20
Astrophys.J.652:1-5,2006
Astronomy and Astrophysics
Astrophysics
accepted version, ApJ in press, the concept of void spins explained, typos corrected
Scientific paper
10.1086/507936
We present a theoretical study of void spins and their correlation properties. The concept of the spin angular momentum for an unbound void is introduced to quantify the effect of the tidal field on the distribution of matter that make up the void. Both the analytical and numerical approaches are used for our study. Analytically, we adopt the linear tidal torque model to evaluate the void spin-spin and spin-density correlations, assuming that a void forms in the initial region where the inertia momentum and the tidal shear tensors are maximally uncorrelated with each other. Numerically, we use the Millennium run galaxy catalog to find voids and calculate their spin statistics. The numerical results turn out to be in excellent agreement with the analytic predictions, both of which consistently show that there are strong spatial alignments between the spin axes of neighbor voids and strong anti-alignments between the void spin axes and the directions to the nearest voids. We expect that our work will provide a deeper insight into the origin and properties of voids and the large scale structure.
Lee Jounghun
Park Daeseong
No associations
LandOfFree
Rotation of Cosmic Voids and Void-Spin Statistics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rotation of Cosmic Voids and Void-Spin Statistics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation of Cosmic Voids and Void-Spin Statistics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-39549