Imperial College London
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Dr Clements

Faculty of Natural Sciences, Department of Physics

Reader in Astrophysics
 
 
 
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Contact

 

+44 (0)20 7594 7693d.clements

 
 
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Location

 

1011Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bakx:2018:mnras/stx2267,
author = {Bakx, TJLC and Eales, SA and Negrello, M and Smith, MWL and Valiante, E and Holland, WS and Baes, M and Bourne, N and Clements, DL and Dannerbauer, H and De, Zotti G and Dunne, L and Dye, S and Furlanetto, C and Ivison, RJ and Maddox, S and Marchetti, L and Michalowski, MJ and Omont, A and Oteo, I and Wardlow, JL and van, der Werf P and Yang, C},
doi = {mnras/stx2267},
journal = {Monthly Notices of the Royal Astronomical Society},
pages = {1751--1773},
title = {The Herschel Bright Sources (HerBS): sample definition and SCUBA-2 observations},
url = {http://dx.doi.org/10.1093/mnras/stx2267},
volume = {473},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We present the Herschel Bright Sources (HerBS) sample, a sample of bright, high-redshift Herschel sources detected in the 616.4 deg2Herschel Astrophysical Terahertz Large Area Survey. The HerBS sample contains 209 galaxies, selected with a 500 μm flux density greater than 80 mJy and an estimated redshift greater than 2. The sample consists of a combination of hyperluminous infrared galaxies and lensed ultraluminous infrared galaxies during the epoch of peak cosmic star formation. In this paper, we present Submillimetre Common-User Bolometer Array 2 (SCUBA-2) observations at 850 μm of 189 galaxies of the HerBS sample, 152 of these sources were detected. We fit a spectral template to the Herschel-Spectral and Photometric Imaging Receiver (SPIRE) and 850 μm SCUBA-2 flux densities of 22 sources with spectroscopically determined redshifts, using a two-component modified blackbody spectrum as a template. We find a cold- and hot-dust temperature of21.29+1.35−1.66and45.80+2.88−3.48 K, a cold-to-hot dust mass ratio of26.62+5.61−6.74and a β of1.83+0.14−0.28. The poor quality of the fit suggests that the sample of galaxies is too diverse to be explained by our simple model. Comparison of our sample to a galaxy evolution model indicates that the fraction of lenses are high. Out of the 152 SCUBA-2 detected galaxies, the model predicts 128.4 ± 2.1 of those galaxies to be lensed (84.5 per cent). The SPIRE 500 μm flux suggests that out of all 209 HerBS sources, we expect 158.1 ± 1.7 lensed sources, giving a total lensing fraction of 76 per cent.
AU  - Bakx,TJLC
AU  - Eales,SA
AU  - Negrello,M
AU  - Smith,MWL
AU  - Valiante,E
AU  - Holland,WS
AU  - Baes,M
AU  - Bourne,N
AU  - Clements,DL
AU  - Dannerbauer,H
AU  - De,Zotti G
AU  - Dunne,L
AU  - Dye,S
AU  - Furlanetto,C
AU  - Ivison,RJ
AU  - Maddox,S
AU  - Marchetti,L
AU  - Michalowski,MJ
AU  - Omont,A
AU  - Oteo,I
AU  - Wardlow,JL
AU  - van,der Werf P
AU  - Yang,C
DO  - mnras/stx2267
EP  - 1773
PY  - 2018///
SN  - 0035-8711
SP  - 1751
TI  - The Herschel Bright Sources (HerBS): sample definition and SCUBA-2 observations
T2  - Monthly Notices of the Royal Astronomical Society
UR  - http://dx.doi.org/10.1093/mnras/stx2267
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000423731200026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/60572
VL  - 473
ER  -
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