{"date_created":"2025-01-03T12:40:44Z","year":"2000","page":"191-199","OA_type":"closed access","doi":"10.1007/978-94-011-4114-7_13","article_processing_charge":"No","_id":"18752","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"07","quality_controlled":"1","abstract":[{"lang":"eng","text":"In hierarchical models of structure formation, an early cosmic UV background (UVB) is produced by the small (T vir ≲ 10^4K) halos that collapse before cosmological reionization. If the sources in the first collapsed halos are stars, then their UV flux below 13.6 eV photo-dissociates the molecular hydrogen H2in subsequently collapsing halos and causes a pause in the cosmic star-formation history. The buildup of the UVB, and reionization is delayed until larger halos (T vir ≳ 10^4K)collapse. In contrast, if the small halos host mini-quasars with hard spectra extending to ~ 1 keV, then their X-rays balance the effects of the UVB, the negative feedback does not occur, and reionization can be caused early on by the small halos."}],"scopus_import":"1","author":[{"orcid":"0000-0003-3633-5403","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán","last_name":"Haiman"}],"oa_version":"None","type":"book_chapter","editor":[{"full_name":"Block, David L.","last_name":"Block","first_name":"David L."},{"full_name":"Puerari, Ivanio","first_name":"Ivanio","last_name":"Puerari"},{"last_name":"Stockton","first_name":"Alan","full_name":"Stockton, Alan"},{"full_name":"Ferreira, Dewet","first_name":"Dewet","last_name":"Ferreira"}],"title":"Radiative Feedback From the First Objects and the End of the Cosmological Dark Age","publication_identifier":{"isbn":["9789401058018"],"eisbn":["9789401141147"]},"language":[{"iso":"eng"}],"publisher":"Springer Nature","citation":{"short":"Z. Haiman, in:, D.L. Block, I. Puerari, A. Stockton, D. Ferreira (Eds.), Toward a New Millennium in Galaxy Morphology, Springer Nature, 2000, pp. 191–199.","mla":"Haiman, Zoltán. “Radiative Feedback From the First Objects and the End of the Cosmological Dark Age.” <i>Toward a New Millennium in Galaxy Morphology</i>, edited by David L. Block et al., Springer Nature, 2000, pp. 191–99, doi:<a href=\"https://doi.org/10.1007/978-94-011-4114-7_13\">10.1007/978-94-011-4114-7_13</a>.","apa":"Haiman, Z. (2000). Radiative Feedback From the First Objects and the End of the Cosmological Dark Age. In D. L. Block, I. Puerari, A. Stockton, &#38; D. Ferreira (Eds.), <i>Toward a New Millennium in Galaxy Morphology</i> (pp. 191–199). Springer Nature. <a href=\"https://doi.org/10.1007/978-94-011-4114-7_13\">https://doi.org/10.1007/978-94-011-4114-7_13</a>","ista":"Haiman Z. 2000.Radiative Feedback From the First Objects and the End of the Cosmological Dark Age. In: Toward a New Millennium in Galaxy Morphology. , 191–199.","ieee":"Z. Haiman, “Radiative Feedback From the First Objects and the End of the Cosmological Dark Age,” in <i>Toward a New Millennium in Galaxy Morphology</i>, D. L. Block, I. Puerari, A. Stockton, and D. Ferreira, Eds. Springer Nature, 2000, pp. 191–199.","ama":"Haiman Z. Radiative Feedback From the First Objects and the End of the Cosmological Dark Age. In: Block DL, Puerari I, Stockton A, Ferreira D, eds. <i>Toward a New Millennium in Galaxy Morphology</i>. Springer Nature; 2000:191-199. doi:<a href=\"https://doi.org/10.1007/978-94-011-4114-7_13\">10.1007/978-94-011-4114-7_13</a>","chicago":"Haiman, Zoltán. “Radiative Feedback From the First Objects and the End of the Cosmological Dark Age.” In <i>Toward a New Millennium in Galaxy Morphology</i>, edited by David L. Block, Ivanio Puerari, Alan Stockton, and Dewet Ferreira, 191–99. Springer Nature, 2000. <a href=\"https://doi.org/10.1007/978-94-011-4114-7_13\">https://doi.org/10.1007/978-94-011-4114-7_13</a>."},"day":"31","extern":"1","date_updated":"2025-01-07T14:36:51Z","status":"public","publication_status":"published","publication":"Toward a New Millennium in Galaxy Morphology","date_published":"2000-07-31T00:00:00Z"}