dc.contributor.author | Geach, J. E. | en_US |
dc.contributor.author | Matsuda, Y. | en_US |
dc.contributor.author | Smail, Ian | en_US |
dc.contributor.author | Chapman, S. C. | en_US |
dc.contributor.author | Yamada, T. | en_US |
dc.contributor.author | Ivison, R. J. | en_US |
dc.contributor.author | Hayashino, T. | en_US |
dc.contributor.author | Ohta, K. | en_US |
dc.contributor.author | Shioya, Y. | en_US |
dc.contributor.author | Taniguchi, Y. | en_US |
dc.date.accessioned | 2014-03-12T19:20:51Z | |
dc.date.available | 2014-03-12T19:20:51Z | |
dc.date.issued | 2005-09-30 | en_US |
dc.identifier.citation | Geach, J. E., Y. Matsuda, Ian Smail, S. C. Chapman, et al. 2005. "A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1." Monthly Notices of the Royal Astronomical Society 363(4): 1398-1408 | en_US |
dc.identifier.issn | 00358711 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1111/j.1365-2966.2005.09538.x | en_US |
dc.identifier.uri | http://hdl.handle.net/10222/45308 | |
dc.description.abstract | We present the results from a submm survey of a sample of 23 giant Lya emitting nebulae in the overdensity at z=3.09 in the SA22 field. These objects, which have become known as Lya Blobs (LABs) have a diverse range of morphology and surface brightness, but the nature of their power source is unclear - with cooling flows and/or AGN/starburst ionised winds being possibilities. Using the SCUBA submm camera we measure the 850um flux of a sample of LABs, detecting four LABs at >3.5sigma individually, and a modest statistical detection of the full sample at about 3mJy. These fluxes correspond to bolometric luminosities in the ultraluminous regime, with star-formation rates of about 1e3 Msun/yr. We show there is a trend between Lya luminosity and bolometric output, which suggests that a galactic scale superwind generated from starbursts of age 10-100Myr may be responsible for the Lya emission. We estimate the star-formation rate density in SA22 to be >3 Msun/yr/Mpc^3 - greater than the field at this epoch, and note that there are now 7 submm galaxies in the SA22 structure, making this region the richest association of these intensely active galaxies. Finally we suggest that Lya haloes may be a common feature of the submm population in general, and have an important role in the heating and enrichment of the intergalactic medium. | en_US |
dc.title | A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1 | en_US |
dc.title.alternative | Monthly Notices of the Royal Astronomical Society | en_US |
dc.type | article | en_US |
dc.identifier.volume | 363 | en_US |
dc.identifier.issue | 4 | en_US |
dc.identifier.startpage | 1398 | en_US |