The Role of Dark Matter In Shaping The Galaxy
Published: 8/08/25
By Oceans Research
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Published: 8/08/25
By Oceans Research
The role of dark matter in shaping galaxy evolution is a complex and multifaceted topic. According to Bertone & Hooper (2018), dark matter's presence is felt through its gravitational effects on visible matter, and its influence extends to galaxy structure and evolution [1].
Dark matter's impact on galaxy formation is significant, as it provides the gravitational seeds for galaxy formation (Navarro et al., 1997) [2]. Its presence facilitates the growth of galaxy clusters and superclusters, and without it, galaxies as we know them might not exist.
In terms of galaxy structure, dark matter's gravitational halo stabilizes galaxy disks, preventing them from collapsing or fragmenting (Ostriker & Peebles, 1973) [3]. Additionally, dark matter's potential well regulates star formation rates and shapes galaxy morphology (Diemand et al., 2008) [4].
Dark matter's role in galaxy evolution is also crucial, as it facilitates galaxy mergers and interactions, driving galaxy growth and evolution (Springel et al., 2005) [5]. Furthermore, dark matter's gravitational potential well regulates gas flow, fueling star formation and galaxy growth.
Despite significant progress, many questions remain unanswered. What is dark matter composed of? How is it distributed within galaxies and galaxy clusters? How does it influence galaxy evolution across cosmic time?
In conclusion, dark matter plays a vital role in shaping galaxy evolution, and further research is needed to unravel its mysteries.
References:
[1] Bertone, G., & Hooper, D. (2018). History of dark matter. Reviews of Modern Physics, 90(4), 045002.
[2] Navarro, J. F., Frenk, C. S., & White, S. D. M. (1997). The Structure of Cold Dark Matter Halos. The Astrophysical Journal, 490(2), 493-508.
[3] Ostriker, J. P., & Peebles, P. J. E. (1973). A Numerical Study of the Stability of Flattened Galaxies. The Astrophysical Journal, 186, 467-480.
[4] Diemand, J., Kuhlen, M., & Madau, P. (2008). Dark Matter Substructure and Gamma-Ray Annihilation in the Milky Way Halo. The Astrophysical Journal, 680(2), 971-984.
[5] Springel, V., Di Matteo, T., & Hernquist, L. (2005). Modelling feedback from stars and black holes in galaxy mergers. Monthly Notices of the Royal Astronomical Society, 361(3), 776-794.