4.7 Article

High-resolution submillimeter imaging of the Lyα blob 1 in SSA 22

Journal

ASTROPHYSICAL JOURNAL
Volume 667, Issue 2, Pages 667-672

Publisher

UNIV CHICAGO PRESS
DOI: 10.1086/521076

Keywords

cosmology : observations; galaxies : formation; galaxies : high-redshift; galaxies : starburst; submillimeter

Ask authors/readers for more resources

We present similar to 2 '' resolution submillimeter observations of the submillimeter luminous giant Ly alpha blob ( LAB1) in the SSA 22 protocluster at redshift z = 3.1 with the Submillimeter Array ( SMA). Although the expected submillimeter flux density is 16 mJy at 880 mu m, no emission is detected with the 2. 4 '' x 1.9 '' ( 18 x 14 kpc) beam at the 3 sigma level of 4.2 mJy beam(-1) in the SMA field of view of 35 ''. This is in contrast to the previous lower angular resolution ( 1500) observations where a bright ( 17 mJy) unresolved submillimeter source was detected at 850 mu m toward the LAB1 using the Submillimeter Common-User Bolometer Array on the James Clerk Maxwell Telescope. The SMA nondetection suggests that the spatial extent of the submillimeter emission of LAB1 should be larger than 400 (> 30 kpc). The most likely interpretation of the spatially extended submillimeter emission is that starbursts occur throughout the large area in LAB1. Some part of the submillimeter emission may come from spatially extended dust expelled from starburst regions by galactic superwind. The spatial extent of the submillimeter emission of LAB1 is similar to those of high-redshift radio galaxies rather than submillimeter galaxies.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available