Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-10-04
Astronomy and Astrophysics
Astrophysics
5 pages, 2 figures, accepted in ApJ letters
Scientific paper
10.1086/318919
We have used the Submillimetre Common-User Bolometer Array (SCUBA) detector on the James Clerk Maxwell Telescope (JCMT) to measure bright sub-mm emission associated with a recently discovered extensive (>100/h kpc) and highly luminous, `blob' of Ly-alpha emission at z=3.09. The blob lies within a known large overdensity of optical sources in the z=3.07-3.11 range, and is centered on a locally overdense peak within this region. The best explanation for the copious sub-mm emission is a dust obscured continuum source, which may produce the ionizing flux for the Ly-alpha cloud. Cooling gas explanations are plausible but excessively complicated, and the 450/850 micron ratio rules out a significant fraction of the signal arising from the Sunyaev-Zel'dovich increment. At least two additional ~10 mJy sub-mm detections in the SCUBA map, with a surface density significantly higher than in blank field surveys, suggests that they may be associated with the z=3.09 structure. A SCUBA `photometry' observation of a second nearby Ly-alpha blob tentatively detects a weaker sub-mm counterpart.
Adelberger Kurt Ludvig
Borys Colin
Chapman Sandra C.
Lewis Geraint F.
Richards Edward
No associations
LandOfFree
Sub-mm imaging of a proto-cluster region at z=3.09 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sub-mm imaging of a proto-cluster region at z=3.09, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sub-mm imaging of a proto-cluster region at z=3.09 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-327744