Chandra X-ray Imaging of Observations of a Protocluster Region at z=3.1

Details Chandra X-ray Imaging of Observations of a Protocluster Region at z=3.1 Chandra X-ray Imaging of Observations of a Protocluster Region at z=3.1

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprj11008b&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present X-ray images from a 78 ksec Chandra observation of a field in Selected Survey Area 22 known to contain an overdensity of Lyman-break galaxies, as well as two extended, luminous Lyman-alpha "blobs" at redshift z=3.1. One of these blobs has previously been detected in the submillimeter. Our Chandra upper limits on the X-ray emission from the Lyman-alpha blobs imply that they are unlikely to be excited by even highly-obscured active galactic nuclei. We compare the spectral energy distributions of the Lyman-break galaxies associated with the Lyman-alpha blobs to those nearby of ultraluminous infrared galaxies. We consider the implications of our Chandra upper limits for previously-proposed models of blob excitation, including starburst-driven winds and cooling radiation.

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