An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: halo masses for submillimetre galaxies

被引:19
作者
Stach, S. M. [1 ]
Smail, I [1 ]
Amvrosiadis, A. [1 ]
Swinbank, A. M. [1 ]
Dudzeviciute, U. [1 ]
Geach, J. E. [2 ]
Almaini, O. [3 ]
Birkin, J. E. [1 ]
Chen, Chian-Chou [4 ]
Conselice, C. J. [3 ]
Cooke, E. A. [1 ,5 ]
Coppin, K. E. K. [2 ]
Dunlop, J. S. [6 ]
Farrah, D. [7 ,8 ]
Ikarashi, S. [1 ]
Ivison, R. J. [9 ]
Wardlow, J. L. [10 ]
机构
[1] Univ Durham, Ctr Extragalact Astron, Dept Phys, Durham DH1 3LE, England
[2] Univ Hertfordshire, Ctr Astrophys Res, Sch Phys Astron & Math, Hatfield AL10 9AB, Herts, England
[3] Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD, England
[4] Acad Sinica, Inst Astron & Astrophys, 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan
[5] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England
[6] Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
[7] Univ Hawaii, Dept Phys & Astron, 2505 Correa Rd, Honolulu, HI 96822 USA
[8] Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA
[9] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
[10] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England
基金
欧洲研究理事会; 英国科学技术设施理事会;
关键词
galaxies: high-redshift; galaxies: starburst; submillimetre: galaxies; ULTRALUMINOUS INFRARED GALAXIES; STAR-FORMING GALAXIES; DARK-MATTER HALOS; REDSHIFT SURVEY; STELLAR MASS; PHYSICAL-PROPERTIES; SOUTH; LUMINOSITY; BIAS; CONSTRAINTS;
D O I
10.1093/mnras/stab714
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present an analysis of the spatial clustering of a large sample of high-resolution, interferometically identified, submillimetre galaxies (SMGs). We measure the projected cross-correlation function of similar to 350 SMGs in the UKIDSS Ultra Deep-Survey Field across a redshift range of z = 1.5-3 utilizing a method that incorporates the uncertainties in the redshift measurements for both the SMGs and cross-correlated galaxies through sampling their full probability distribution functions. By measuring the absolute linear bias of the SMGs, we derive halo masses of log(10)(M-halo[h(-1)M(circle dot)]) similar to 12.8 with no evidence of evolution in the halo masses with redshift, contrary to some previous work. From considering models of halo mass growth rates, we predict that the SMGs will reside in haloes of mass log(10)(M-halo[h(-1)M(circle dot)]) similar to 13.2 at z = 0, consistent with the expectation that the majority of z = 1.5-3 SMGs will evolve into present-day spheroidal galaxies. Finally, comparing to models of stellar-to-halo mass ratios, we show that SMGs may correspond to systems that are maximally efficient at converting their gas reservoirs into stars. We compare them to a simple model for gas cooling in haloes that suggests that the unique properties of the SMG population, including their high levels of star formation and their redshift distribution, are a result of the SMGs being the most massive galaxies that are still able to accrete cool gas from their surrounding intragalactic medium.
引用
收藏
页码:172 / 184
页数:13
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