ef1da23cbc The Astrophysical Journal. Icarus. 117 (3): 14901504. The general explanation tend to be the accretion process, where the tilt would be randomized. Dust particles tend to stick to each other in the dense disk environment, leading to the formation of larger particles up to several centimeters in size.[49] The signatures of the dust processing and coagulation are observed in the infrared spectra of the young disks.[15] Further aggregation can lead to the formation of planetesimals measuring 1km across or larger, which are the building blocks of planets.[1][49] Planetesimal formation is another unsolved problem of disk physics, as simple sticking becomes ineffective as dust particles grow larger.[23]. Icarus. ^ a b c d e Inaba, S.; Wetherill, G.W.; Ikoma, M. Most of the material ended up in a ball at the center while the rest of the matter flattened out into disk that circled around it. The study of star forming molecular clouds shows that same early, large stars form that way.
183 (2): 265282. The visible-light (left) and infrared (right) views of the Trifid Nebulaa giant star-forming cloud of gas and dust located 5,400light-years away in the constellation Sagittarius . doi:10.1111/j.1745-3933.2007.00383.x. I. University of Wisconsin-Madison. 806 (1): 29pp. ^ Nayakshin, Sergie (2010).
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