Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-12T11:38:36.203Z Has data issue: false hasContentIssue false
  • English
  • Français

Mapping the Reionization Era Through the 21 cm Line Emission

Published online by Cambridge University Press:  23 September 2016

Benedetta Ciardi  and
Simon D. M. White
Benedetta Ciardi
Affiliation:
Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, Germany
Simon D. M. White
Affiliation:
Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We will present simulations of the IGM reionization process and discuss its observability through the 21 cm line. We find that the primordial stellar sources considered in this study give a value of the reionization epoch and of the electron optical depth consistent with the observations by WMAP, without invoking the presence of additional sources of ionization. Depending on the redshift of reionization, broad-beam observations at frequencies < 100–150 MHz with the next generation of radio telescopes should reveal angular fluctuations in the sky brightness temperature in the range 5 —20 mK on scales < 5 arcmin.

Type
Session V: Intergalactic Medium
Information
Symposium - International Astronomical Union , Volume 216: Maps of the Cosmos , 2005 , pp. 290 - 296
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

Carilli, C., Gnedin, N. Y., & Owen, F. 2002, ApJ, 577, 22 Google Scholar
Chen, X., & Miralda-Escudé, J. 2004, ApJ, 602, 1 CrossRefGoogle Scholar
Ciardi, B., Ferrara, A., Marri, S., & Raimondo, G. 2001, MNRAS, 324, 381 Google Scholar
Ciardi, B., Ferrara, A., & White, S. D. M. 2003, MNRAS, 344, L7 Google Scholar
Ciardi, B., & Madau, P. 2003, ApJ, 596, 1 CrossRefGoogle Scholar
Ciardi, B., Stoehr, F., & White, S. D. M. 2003, MNRAS, 343, 1101 Google Scholar
Fan, X., et al. 2002, AJ, 123, 1247 Google Scholar
Furlanetto, S., & Loeb, A. 2002, ApJ, 579, 1 Google Scholar
Iliev, I. T., Scannapieco, E., Martel, H., & Shapiro, P. R. 2003, MNRAS, 341, 81 Google Scholar
Kogut, A., et al. 2003, ApJS, 148, 161 Google Scholar
Madau, P., Meiksin, A., & Rees, M. J. 1997, ApJ, 475, 492 CrossRefGoogle Scholar
Maselli, A., Ferrara, A., & Ciardi, B. 2003, MNRAS, 345, 379 Google Scholar
Tozzi, P., Madau, P., Meiksin, A., & Rees, M. J. 2000, ApJ, 528, 597 CrossRefGoogle Scholar