{"doi":"10.1093/mnras/staa3057","publication_identifier":{"issn":["0035-8711","1365-2966"]},"year":"2020","publication":"Monthly Notices of the Royal Astronomical Society","month":"10","scopus_import":"1","quality_controlled":"1","oa":1,"title":"Suppression of H2 cooling in protogalaxies aided by trapped Lyα cooling radiation","_id":"17595","extern":"1","volume":500,"article_processing_charge":"No","intvolume":"       500","abstract":[{"lang":"eng","text":"We study the thermal evolution of UV-irradiated atomic cooling haloes using high-resolution three-dimensional hydrodynamic simulations. We consider the effect of H− photodetachment by Lyα cooling radiation trapped in the optically-thick cores of three such haloes, a process that has not been included in previous simulations. Because H− is a precursor of molecular hydrogen, its destruction can diminish the H2 abundance and cooling. We find that the critical UV flux for suppressing H2-cooling is decreased by ∼15–50 per cent in our fiducial models. Previous one-zone modelling found a larger effect, with Jcrit reduced by a factor of a few; we show that adopting a constant halo mass to determine the trapped Lyα energy density, as is done in the one-zone models, yields a larger reduction in Jcrit, consistent with their findings. Our results nevertheless suggest that Lyα radiation may have an important effect on the thermal evolution of UV-irradiated haloes, and therefore on the potential for massive black hole formation."}],"publication_status":"published","language":[{"iso":"eng"}],"issue":"1","article_type":"original","date_published":"2020-10-09T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/mnras/staa3057"}],"day":"09","status":"public","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_created":"2024-09-05T12:42:37Z","author":[{"last_name":"Wolcott-Green","first_name":"Jemma","full_name":"Wolcott-Green, Jemma"},{"last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","full_name":"Haiman, Zoltán","first_name":"Zoltán"},{"first_name":"Greg L","full_name":"Bryan, Greg L","last_name":"Bryan"}],"page":"138-144","oa_version":"Published Version","citation":{"mla":"Wolcott-Green, Jemma, et al. “Suppression of H2 Cooling in Protogalaxies Aided by Trapped Lyα Cooling Radiation.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 500, no. 1, Oxford University Press, 2020, pp. 138–44, doi:<a href=\"https://doi.org/10.1093/mnras/staa3057\">10.1093/mnras/staa3057</a>.","apa":"Wolcott-Green, J., Haiman, Z., &#38; Bryan, G. L. (2020). Suppression of H2 cooling in protogalaxies aided by trapped Lyα cooling radiation. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/staa3057\">https://doi.org/10.1093/mnras/staa3057</a>","short":"J. Wolcott-Green, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical Society 500 (2020) 138–144.","chicago":"Wolcott-Green, Jemma, Zoltán Haiman, and Greg L Bryan. “Suppression of H2 Cooling in Protogalaxies Aided by Trapped Lyα Cooling Radiation.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2020. <a href=\"https://doi.org/10.1093/mnras/staa3057\">https://doi.org/10.1093/mnras/staa3057</a>.","ama":"Wolcott-Green J, Haiman Z, Bryan GL. Suppression of H2 cooling in protogalaxies aided by trapped Lyα cooling radiation. <i>Monthly Notices of the Royal Astronomical Society</i>. 2020;500(1):138-144. doi:<a href=\"https://doi.org/10.1093/mnras/staa3057\">10.1093/mnras/staa3057</a>","ieee":"J. Wolcott-Green, Z. Haiman, and G. L. Bryan, “Suppression of H2 cooling in protogalaxies aided by trapped Lyα cooling radiation,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 500, no. 1. Oxford University Press, pp. 138–144, 2020.","ista":"Wolcott-Green J, Haiman Z, Bryan GL. 2020. Suppression of H2 cooling in protogalaxies aided by trapped Lyα cooling radiation. Monthly Notices of the Royal Astronomical Society. 500(1), 138–144."},"date_updated":"2024-09-23T12:42:07Z","publisher":"Oxford University Press","type":"journal_article"}