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A Deep Narrow Band Imaging Search for CIVλ1548Å and HeIIλ1640Å Emission from Lyman Alpha Blobs

Published online by Cambridge University Press:  25 July 2014

Fabrizio Arrigoni Battaia
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
Y. Yang
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
J. F. Hennawi
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
Y. Matsuda
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
T. Yamada
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
T. Hayashino
Affiliation:
Max-Planck-Institut für Astronomie Königstuhl 17, D-69117 Heidelberg, Germany email: arrigoni@mpia.de
Corresponding
E-mail address:
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Abstract

To study the nature of Lyα blobs (aka LABs), we conduct a deep C IV and He II narrowband imaging survey of 13 Lyα blobs located in SSA22 proto-cluster at z ~ 3.1. We reach the unprecedented sensitivity, 5σ surface brightness limit of 2.1 − 3.4 × 10−18 erg s−1 cm−2 arcsec−2 per 1 arcsec2 aperture for two emission lines. We do not detect any extended C IV and He II emission, placing strong upper limits on the He II/Lyα and C IV/Lyα line ratios. We compare our limits with data in the literature related to the nebulae associated with high-redshift radio galaxies (HzRGs) and quasars, and we recover the data by modeling the LABs as nebulosities powered by a central QSO. For further information see Arrigoni Battaia et al. (2014).

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014 

References

Arrigoni Battaia, F., Yang, Y., Hennawi, J. F., et al. 2014, in prep.Google Scholar
Hayashino, T., Matsuda, Y., Tamura, H., et al. 2004, AJ, 128, 2073CrossRefGoogle Scholar
Hennawi, J. F. & Prochaska, J. X. 2013, ApJ, 766, 58CrossRefGoogle Scholar
Matsuda, Y., Yamada, T., Hayashino, T., et al. 2004, AJ, 128, 569CrossRefGoogle Scholar
Prescott, M. K. M., Dey, A., & Jannuzi, B. T. 2013, ApJ, 762, 38CrossRefGoogle Scholar
Steidel, C. C., Adelberger, K. L., Shapley, A. E., et al. 2000, ApJ, 532, 170CrossRefGoogle Scholar
Yang, Y., Zabludoff, A., Tremonti, C., Eisenstein, D., & Davé, R. 2009, ApJ, 693, 1579CrossRefGoogle Scholar

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A Deep Narrow Band Imaging Search for CIVλ1548Å and HeIIλ1640Å Emission from Lyman Alpha Blobs
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A Deep Narrow Band Imaging Search for CIVλ1548Å and HeIIλ1640Å Emission from Lyman Alpha Blobs
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A Deep Narrow Band Imaging Search for CIVλ1548Å and HeIIλ1640Å Emission from Lyman Alpha Blobs
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