Can Dark Matter Halos Change Shape? Examining the Adams Instability in Triaxial Systems
DOI:
https://doi.org/10.17307/wsc.v0i0.131Paraules clau:
Adams Instability, Dark Matter HalosResum
A recently discovered instability causes non-spherical orbits within dark matter halos to exponentially diverge into more spherical orbits. The instability was studied in limited régimes within the Adams et al. (2007) work. This project has replicated and extend the ideas to a static potential system that is accurate to all distances away from the potential’s center as well as found an easy visualization for the arising instability. A better understanding of dark matters’ behavior will help explain dark matters’ halo structure and mass distribution that surround galaxies.
Referències
Adams, F., Bloch, A., Butler, S., 2007, Astrophys. J, 670, 1027-1042.
Barnes, J., Hut, P., & Goodman, J. 1986, ApJ, 300, 112.
de Zeeuw, T., & Merritt, D. 1983, ApJ, 267, 571.
Ferreras, I., Saha, P., Williams, L. L. R. 2005, Astrophys. J. Lett., 623, 5-8.
Henon, M. 1973, A&A, 24, 229
Holley-Bockelmann, K., Mihos, J. C., Sigurdsson, S., & Hernquist, L. 2001, ApJ, 549, 862.
Merritt, D., & Aguilar, L. A. 1985, MNRAS, 217, 787.
Palmer, P. L., & Papaloizou, J. C. P. 1987, MNRAS, 224, 1043.
Poon, M. Y., & Merritt, D. 2001, ApJ, 549, 192 (PM01). 2002, ApJ, 568, L89.
Rubin V. C., Kent Ford W., 1970, ApJ, 159, 379
Rubin, V. C. 1979, Comments Astrophys., 8, 79-88.
Salpeter, E. E. 1978, in IAU Symp. 77, Structure and Properties of Nearby Galaxies, ed. E. M. Berkhuijsen & R. Wielebinski (Dordrecht:Reidel), 23-26.
Sancisi, R., Allen, R. J. 1979, Astron. & Astrophys., 74, 73-84.
Schechter, P. L., Wambsganss, J. 2004, in IAU Symp. 220, Dark Matter in Galaxies, ed. S. D. Ryder, D. J. Pisano, M. A. Walker, and K. C. Freeman (San Francisco: Astronomical Society of the Paciï¬c), 103.
Spergel, D. N., Bean, R., Dore, 0., Nolta, M.R., Bennett, C.L., Dunkley, J., Hinshaw, G., Jarosik, N., Komatsu, E., Page, L., Peiris, H.B., Verde, L., Halpern, M., Hill, R.S., Kogut, A., Limon, M., Meyer, S.S., Odegard, N., Tucker, G.S., Weiland, J.L., Wollack, E., Wright, E.L. 2007, Astrophys. J. Supp., 170, 377-408.
Statler, T. S. 1987, ApJ, 321, 113.
Terzic ´, B., & Sprague, B. J. 2007, MNRAS, 377, 855.
Descàrregues
Publicades
Com citar
Número
Secció
Llicència
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
