Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-11T08:21:15.059Z Has data issue: false hasContentIssue false
  • English
  • Français

The Impact of Stochastic Attenuation on Photometric Redshift Estimates

Published online by Cambridge University Press:  01 August 2006

Thorsten Tepper García  and
Uta Fritze-von Alvensleben
Thorsten Tepper García
Affiliation:
Institut für Astrophysik, Georg-August Universität, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany email: tepper@astro.physik.uni-goettingen.de
Uta Fritze-von Alvensleben
Affiliation:
Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK email: ufritze@star.herts.ac.uk
Rights & Permissions [Opens in a new window]

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 model the stochastic attenuation by HI absorbers in the intergalactic medium (IGM), such as Lyα Forest clouds, and absorbers associated with galaxies, such as Lyman Limit systems (LLS) and Damped Lyman Alpha absorbers (DLAs), and compute an ensemble of 4 · 103 attenuated Spectral Energy Distributions (SEDs) in the Johnson system for the spectrum of a galaxy with a constant star formation rate (CSFR). Using these, we asses the impact of the stochastic attenuation on the estimates of photometric redshifts for this type of galaxy by comparison with model SEDs that include only a mean attenuation.

Keywords

galaxies: intergalactic mediumgalaxies: high-redshiftgalaxies: photometry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 438 - 439
Copyright
Copyright © International Astronomical Union 2007

References

Anders, P., Bissantz, N., Fritze-v. Alvensleben, U., & de Grijs, R. 2006, MNRAS, 347, 196CrossRefGoogle Scholar
Bershady, M.A., Charlton, J.C., & Geo.roy, J.M. 1999, ApJ, 518, 103CrossRefGoogle Scholar
Bicker, J., Fritze-v.A., U., & Fricke, K.J. 2004, A&A, 413, 37Google Scholar
Kim, T.-S., Hu, E.M., Cowie, L.L., & Songaila, A. 1997, AJ, 114, 1CrossRefGoogle Scholar
Madau, P. 1995, ApJ, 441, 18CrossRefGoogle Scholar
Tepper García, T. 2006, MNRAS, 369, 2025CrossRefGoogle Scholar