He II Emission in Lyα Nebulae: Active Galactic Nucleus or Cooling Radiation?

Scarlata, C; Colbert, James W; Teplitz, Harry; Bridge, C; Francis, Paul; Palunas, P; Siana, B; Williger, Gerard; Woodgate, Bruce

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He II Emission in Lyα Nebulae: Active Galactic Nucleus or Cooling Radiation?

Date

2009

Authors

Scarlata, C

Colbert, James W

Teplitz, Harry

Bridge, C

Francis, Paul

Palunas, P

Siana, B

Williger, Gerard

Woodgate, Bruce

Publisher

IOP Publishing

Abstract

We present a study of an extended Lyα nebula located in a known overdensity at z ∼ 2.38. The data include multiwavelength photometry covering the rest-frame spectral range from 0.1 to 250μm, and deep optical spectra of the sources associated with the