Lyman-alpha blob 6 (IMAGE)

University of Utah

Lyman-alpha blob 6

Caption

Three-color image of the sky around Lyman-alpha blob 6 (LAB-6). In green is the Lyman-alpha emission from LAB-6. LAB-6 is 18.5 billion light years away from us in the direction of constellation Grus, with an extension about half million light years . The physical size of the yellow box is 3.26 million light years. Most galaxies seen in this image are foreground galaxies. (Blue: VLT/Hawk-I J band at 1.258 micron; Red: VLT/Hawk-I Ks band at 2.146 micron; Green: Lyman-alpha emission at 0.411 micron with Blanco 4m telescope at the Cerro Tololo Inter-American Observatory)

Credit

Yiping Ao/VLT/Hawk-I/Blanco

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non commercial with attribution

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