Radiative feedback from the first objects and the end of the cosmological dark age
Haiman Z. 1999. Radiative feedback from the first objects and the end of the cosmological dark age. Astrophysics and Space Science. 269, 191–199.
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Journal Article
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Abstract
In hierarchical models of structure formation, an early cosmic UV background(UVB) is produced by the small (T vir ≲ 104K) 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 H2 in 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 ≳ 104K) collapse. In contrast, if the small halos host mini-quasars with hard spectra extending to∼1keV, 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.
Publishing Year
Date Published
1999-12-01
Journal Title
Astrophysics and Space Science
Publisher
Springer Nature
Volume
269
Page
191-199
ISSN
eISSN
IST-REx-ID
Cite this
Haiman Z. Radiative feedback from the first objects and the end of the cosmological dark age. Astrophysics and Space Science. 1999;269:191-199. doi:10.1023/a:1017062512507
Haiman, Z. (1999). Radiative feedback from the first objects and the end of the cosmological dark age. Astrophysics and Space Science. Springer Nature. https://doi.org/10.1023/a:1017062512507
Haiman, Zoltán. “Radiative Feedback from the First Objects and the End of the Cosmological Dark Age.” Astrophysics and Space Science. Springer Nature, 1999. https://doi.org/10.1023/a:1017062512507.
Z. Haiman, “Radiative feedback from the first objects and the end of the cosmological dark age,” Astrophysics and Space Science, vol. 269. Springer Nature, pp. 191–199, 1999.
Haiman Z. 1999. Radiative feedback from the first objects and the end of the cosmological dark age. Astrophysics and Space Science. 269, 191–199.
Haiman, Zoltán. “Radiative Feedback from the First Objects and the End of the Cosmological Dark Age.” Astrophysics and Space Science, vol. 269, Springer Nature, 1999, pp. 191–99, doi:10.1023/a:1017062512507.
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