{"intvolume":"       452","publication_status":"published","abstract":[{"lang":"eng","text":"In order to elucidate the origin of spin in both dark matter and baryons in galaxies, we have performed hydrodynamical simulations from cosmological initial conditions. We study atomic cooling haloes in the redshift range 100>z>9 with masses of order 109M⊙ at redshift z=10. We assume that the gas has primordial composition and that H2-cooling and prior star-formation in the haloes have been suppressed. We present a comprehensive analysis of the gas and dark matter properties of four halos with very low (λ≈0.01), low (λ≈0.04), high (λ≈0.06) and very high (λ≈0.1) spin parameter. Our main conclusion is that the spin orientation and magnitude is initially well described by tidal torque linear theory, but later on is determined by the merging and accretion history of each halo. We provide evidence that the topology of the merging region, i.e. the number of colliding filaments, gives an accurate prediction for the spin of dark matter and gas: halos at the center of knots will have low spin while those in the center of filaments will have high spin. The spin of a halo is given by λ≈0.05×(7.6/numberoffilaments)^5.1"}],"article_processing_charge":"No","_id":"17641","extern":"1","volume":452,"title":"The origin of spin in galaxies: Clues from simulations of atomic cooling haloes","oa":1,"month":"07","scopus_import":"1","quality_controlled":"1","doi":"10.1093/mnras/stv1234","year":"2015","publication":"Monthly Notices of the Royal Astronomical Society","publication_identifier":{"issn":["0035-8711","1365-2966"]},"oa_version":"Published Version","date_updated":"2024-09-24T11:52:00Z","citation":{"apa":"Prieto, J., Jimenez, R., Haiman, Z., &#38; González, R. E. (2015). The origin of spin in galaxies: Clues from simulations of atomic cooling haloes. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stv1234\">https://doi.org/10.1093/mnras/stv1234</a>","short":"J. Prieto, R. Jimenez, Z. Haiman, R.E. González, Monthly Notices of the Royal Astronomical Society 452 (2015) 784–802.","ama":"Prieto J, Jimenez R, Haiman Z, González RE. The origin of spin in galaxies: Clues from simulations of atomic cooling haloes. <i>Monthly Notices of the Royal Astronomical Society</i>. 2015;452(1):784-802. doi:<a href=\"https://doi.org/10.1093/mnras/stv1234\">10.1093/mnras/stv1234</a>","chicago":"Prieto, Joaquin, Raul Jimenez, Zoltán Haiman, and Roberto E. González. “The Origin of Spin in Galaxies: Clues from Simulations of Atomic Cooling Haloes.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2015. <a href=\"https://doi.org/10.1093/mnras/stv1234\">https://doi.org/10.1093/mnras/stv1234</a>.","ieee":"J. Prieto, R. Jimenez, Z. Haiman, and R. E. González, “The origin of spin in galaxies: Clues from simulations of atomic cooling haloes,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 452, no. 1. Oxford University Press, pp. 784–802, 2015.","ista":"Prieto J, Jimenez R, Haiman Z, González RE. 2015. The origin of spin in galaxies: Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal Astronomical Society. 452(1), 784–802.","mla":"Prieto, Joaquin, et al. “The Origin of Spin in Galaxies: Clues from Simulations of Atomic Cooling Haloes.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 452, no. 1, Oxford University Press, 2015, pp. 784–802, doi:<a href=\"https://doi.org/10.1093/mnras/stv1234\">10.1093/mnras/stv1234</a>."},"type":"journal_article","publisher":"Oxford University Press","author":[{"last_name":"Prieto","full_name":"Prieto, Joaquin","first_name":"Joaquin"},{"full_name":"Jimenez, Raul","first_name":"Raul","last_name":"Jimenez"},{"first_name":"Zoltán","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman"},{"last_name":"González","first_name":"Roberto E.","full_name":"González, Roberto E."}],"page":"784-802","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_created":"2024-09-06T07:18:53Z","main_file_link":[{"url":"https://doi.org/10.1093/mnras/stv1234","open_access":"1"}],"status":"public","day":"08","issue":"1","language":[{"iso":"eng"}],"article_type":"original","date_published":"2015-07-08T00:00:00Z"}