Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-15T18:25:14.467Z Has data issue: false hasContentIssue false
  • English
  • Français

A correlation between spin parameter and dark matter halo mass

Published online by Cambridge University Press:  20 January 2011

H. Wozniak ,
G. Hensler ,
A. Knebe  and
C. Power
A. Knebe
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
C. Power
Affiliation:
Department of Physics and Astronomy, University of Leicester, University Road, LE1 7RH, UK
Get access

Abstract

Using a set of high-resolution dark matter only cosmological simulations we found a correlation between the dark matter halo mass M and its spin parameter λ for objects forming at redshifts z > 10: the spin parameter decreases with increasing mass. However, halos forming at later times do not exhibit such a strong correlation, in agreement with the findings of previous studies.

While we presented such a correlation in a previous study using the Bullock et al. (2001) spin parameter defintion we now defer to the classical definition showing that the results are independent of the definition.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 44: JENAM 2008: Grand Challenges in Computational Astrophysics , 2010 , pp. 53 - 56
Copyright
© EAS, EDP Sciences 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Références

Barnes, J., & Efstathiou, G., 1987, ApJ, 319, 575 CrossRef
Bett, P., Eke, V., Frenk, C.S., et al., 2007, MNRAS, 376, 215 CrossRef
Bullock, J., Dekel, A., Kolatt, T.S., et al., 2001, ApJ, 555, 240 CrossRef
Cole, S., & Lacey, C., 1996, MNRAS, 281, 726 CrossRef
Doroshkevich, A.G., 1973, Astrophys. Lett., 14, 11
Fall, S.M., & Efstathiou, G., 1980, MNRAS, 193, 189 CrossRef
Gardner, J.P., 2001, ApJ, 557, 616 CrossRef
Gill, S.P.D., Knebe, A., & Gibson, B.K., 2004, MNRAS, 351, 399 CrossRef
Hetznecker, H., & Burkert, A., 2006, MNRAS, 370, 1905 CrossRef
Hoyle, F., 1945, MNRAS, 105, 287 CrossRef
Knebe, A., & Power, C., 2008, ApJ, 678, 621 CrossRef
Lemson, G., & Kauffmann, G., 1999, MNRAS, 302, 111 CrossRef
Maccio, A.V., Dutton, A.A., van den Bosch, F.C., et al., 2007, MNRAS, 378, 55 CrossRef
Maller, A.H., Dekel, A., & Somerville, R., 2002, MNRAS, 329, 423 CrossRef
Mo, H.J., Mao, S., & White, S.D.M., 1998, MNRAS, 295, 319 CrossRef
Peebles, J., 1969, ApJ, 155, 393 CrossRef
Power, C.B., Knebe, A., & Knollmann, S., 2008, MNRAS, submitted
Porciani, C., Dekel, A., & Hoffman, Y., 2002, MNRAS, 332, 325 CrossRef
Shaw, L.D., Weller, J., Ostriker, J.P., & Bode, P., 2006, ApJ, 646, 815 CrossRef
Spergel, D., et al., 2003, ApJS, 148, 175 CrossRef
Sugerman, B., Summers, F.J., & Kamionkowski, M., 2000, MNRAS, 311, 762 CrossRef
Vitvitska, M., Klypin, A.A., Kravtsov, A.V., et al., 2002, ApJ, 581, 799 CrossRef
Warren, M.S., Quinn, P.J., Salmon, J.K., & Zurek, W.H., 1992, ApJ, 399, 405 CrossRef
White, S.D.M., & Rees, M., 1978, MNRAS, 183, 341 CrossRef
White, S.D.M., 1984
Zavala, J., Okamoto, T., & Frenk, C.S., 2007 [astro-ph/0710.2901]