Imperial College London
Portrait Picture

Dr Clements

Faculty of Natural Sciences, Department of Physics

Reader in Astrophysics
 
 
 
//

Contact

 

+44 (0)20 7594 7693d.clements

 
 
//

Location

 

1011Blackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Ma:2019:1538-4365/ab4194,
author = {Ma, J and Cooray, A and Nayyeri, H and Brown, A and Ghotbi, N and Ivison, R and Oteo, I and Duivenvoorden, S and Greenslade, J and Clements, D and Wardlow, J and Battisti, A and da, Cunha E and Ashby, MLN and Perez-Fournon, I and Riechers, D and Oliver, S and Eales, S and Negrello, M and Dye, S and Dunne, L and Omont, A and Scott, D and Cox, P and Serjeant, S and Maddox, S and Valiante, E},
doi = {1538-4365/ab4194},
journal = {Astrophysical Journal Supplement Series},
pages = {1--19},
title = {Spitzer catalog of herschel-selected ultrared dusty star-forming galaxies},
url = {http://dx.doi.org/10.3847/1538-4365/ab4194},
volume = {244},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The largest Herschel extragalactic surveys, H-ATLAS and HerMES, have selected a sample of "ultrared" dusty star-forming galaxies (DSFGs) with rising SPIRE flux densities (S 500 > S 350 > S 250; the so-called "500 μm risers") as an efficient way for identifying DSFGs at higher redshift (z > 4). In this paper, we present a large Spitzer follow-up program of 300 Herschel ultrared DSFGs. We have obtained high-resolution Atacama Large Millimeter/submillimeter Array, Northern Extended Millimeter Array, and SMA data for 63 of them, which allow us to securely identify the Spitzer/IRAC counterparts and classify them as gravitationally lensed or unlensed. Within the 63 ultrared sources with high-resolution data, ~65% appear to be unlensed and ~27% are resolved into multiple components. We focus on analyzing the unlensed sample by directly performing multiwavelength spectral energy distribution modeling to derive their physical properties and compare with the more numerous z ~ 2 DSFG population. The ultrared sample has a median redshift of 3.3, stellar mass of 3.7 × 1011 M , star formation rate (SFR) of 730 M  yr−1, total dust luminosity of 9.0 × 1012 L , dust mass of 2.8 × 109 M , and V-band extinction of 4.0, which are all higher than those of the ALESS DSFGs. Based on the space density, SFR density, and stellar mass density estimates, we conclude that our ultrared sample cannot account for the majority of the star-forming progenitors of the massive, quiescent galaxies found in infrared surveys. Our sample contains the rarer, intrinsically most dusty, luminous, and massive galaxies in the early universe that will help us understand the physical drivers of extreme star formation.
AU  - Ma,J
AU  - Cooray,A
AU  - Nayyeri,H
AU  - Brown,A
AU  - Ghotbi,N
AU  - Ivison,R
AU  - Oteo,I
AU  - Duivenvoorden,S
AU  - Greenslade,J
AU  - Clements,D
AU  - Wardlow,J
AU  - Battisti,A
AU  - da,Cunha E
AU  - Ashby,MLN
AU  - Perez-Fournon,I
AU  - Riechers,D
AU  - Oliver,S
AU  - Eales,S
AU  - Negrello,M
AU  - Dye,S
AU  - Dunne,L
AU  - Omont,A
AU  - Scott,D
AU  - Cox,P
AU  - Serjeant,S
AU  - Maddox,S
AU  - Valiante,E
DO  - 1538-4365/ab4194
EP  - 19
PY  - 2019///
SN  - 0067-0049
SP  - 1
TI  - Spitzer catalog of herschel-selected ultrared dusty star-forming galaxies
T2  - Astrophysical Journal Supplement Series
UR  - http://dx.doi.org/10.3847/1538-4365/ab4194
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000502057800004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://iopscience.iop.org/article/10.3847/1538-4365/ab4194
UR  - http://hdl.handle.net/10044/1/80414
VL  - 244
ER  -
Download