An ALMA survey of the SCUBA-2 cosmology legacy survey UKIDSS/UDS field: Dust attenuation in high-redshift Lyman-break galaxies

被引：0

作者：

Koprowski M.P. ^{[1
,2
]}

Coppin K.E.K. ^{[1
]}

Geach J.E. ^{[1
]}

Dudzeviciute U. ^{[3
]}

Smail I. ^{[3
]}

Almaini O. ^{[4
]}

An F. ^{[3
]}

Blain A.W. ^{[5
]}

Chapman S.C. ^{[6
]}

Chen C.-C. ^{[7
,8
]}

Conselice C.J. ^{[4
]}

Dunlop J.S. ^{[9
]}

Farrah D. ^{[10
,11
]}

Gullberg B. ^{[3
]}

Hartley W. ^{[12
,13
]}

Ivison R.J. ^{[7
,9
]}

Karska A. ^{[2
]}

Maltby D. ^{[4
]}

Malek K. ^{[14
,15
]}

Michalowski M.J. ^{[16
]}

Pope A. ^{[17
]}

Salim S. ^{[18
]}

Scott D. ^{[19
]}

Simpson C.J. ^{[20
]}

Simpson J.M. ^{[21
]}

Swinbank A.M. ^{[3
]}

Thomson A.P. ^{[22
]}

Wardlow J.L. ^{[23
]}

van der Werf P.P. ^{[24
]}

Whitaker K.E.

机构：

[1] Centre for Astrophysics Research, School of Physics, Astronomy and Mathematics, University of Hertfordshire, College Lane, Hatfield

[2] Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, Torun

[3] Centre for Extragalactic Astronomy, Department of Physics, Durham University, Durham

[4] School of Physics and Astronomy, University of Nottingham, University Park, Nottingham

[5] Physics&Astronomy, University of Leicester, 1 University Road, Leicester

[6] Department of Physics and Atmospheric Science, Dalhousie University, Halifax, B3H 4R2, NS

[7] European Southern Observatory, Karl Schwarzschild Strasse 2, Garching

[8] Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), No. 1 Section 4, Roosevelt Rd., Taipei

[9] Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh

[10] Department of Physics and Astronomy, University of Hawaii, 2505 Correa Road, Honolulu, 96822, HI

[11] Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, 96822, HI

[12] Department of Physics and Astronomy, University College London, London

[13] Department of Physics, ETH Zurich, Wolfgang-PauliStrasse 16, Zurich

[14] National Centre for Nuclear Research, ul. Pasteura 7, Warsaw

[15] Aix Marseille Univ, CNRS, CNES, LAM, Marseille

[16] Astronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University, ul. Sloneczna 36, Poznan

[17] Department of Astronomy, University of Massachusetts, Amherst, 01003, MA

[18] Department of Astronomy, Indiana University, Bloomington, 47404

[19] Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver

[20] Gemini Observatory, Northern Operations Center, 670 N. A'ohuku Place, Hilo, 96720, HI

[21] Academia Sinica Institute of Astronomy and Astrophysics, No. 1, Section 4, Roosevelt Rd., Taipei

[22] The University of Manchester, Jodrell Bank Centre for Astrophysics, Oxford Road, Manchester

[23] Department of Physics, Lancaster University, Lancaster

[24] Leiden Observatory, Leiden University, P.O. Box 9513, Leiden

来源：

Koprowski, M.P. (mkoprowski@fizyka.umk.pl) | 1600年 / Oxford University Press卷 / 492期

基金：

英国科学技术设施理事会; 美国国家航空航天局;

关键词：

Cosmology: Observations; Dust; extinction; Galaxies: Evolution; Galaxies: High-redshift; Galaxies: ISM; Galaxies: Star formation;

D O I：

10.1093/MNRAS/STAA160

中图分类号：

学科分类号：

摘要：

We analyse 870 ∼m Atacama Large Millimetre Array (ALMA) dust continuum detections of 41 canonically selected z3 Lyman-break galaxies (LBGs), aswell as 209 ALMA-undetected LBGs, in follow-up of SCUBA-2 mapping of the UKIDSS Ultra Deep Survey (UDS) field. We find that our ALMA-bright LBGs lie significantly off the local IRX-beta relation and have relatively bluer rest-frame UV slopes (as parametrized by β), given their high values of the 'infrared excess' (IRX LIR/LUV), relative to the average 'local' IRX-β relation. We attribute this finding in part to the young ages of the underlying stellar populations but we find that the main reason behind the unusually blue UV slopes are the relatively shallow slopes of the corresponding dust attenuation curves. We show that, when stellar masses, M∗, are being established via SED fitting, it is absolutely crucial to allow the attenuation curves to vary (rather than fixing it on Calzetti-like law), where we find that the inappropriate curves may underestimate the resulting stellar masses by a factor of 2-3× on average. In addition, we find these LBGs to have relatively high specific star-formation rates (sSFRs), dominated by the dust component, as quantified via the fraction of obscured star formation (fobs SFRIR/SFRUV+IR). We conclude that the ALMA-bright LBGs are, by selection, massive galaxies undergoing a burst of a star formation (large sSFRs, driven, for example, by secular or merger processes), with a likely geometrical disconnection of the dust and stars, responsible for producing shallow dust attenuation curves. © 2020 Oxford University Press. All rights reserved.

引用

页码：4927 / 4944

页数：17

共 33 条

[1] An ALMA survey of the SCUBA-2 cosmology legacy survey UKIDSS/UDS field: Dust attenuation in high-redshift Lyman-break galaxies
Koprowski, M. P.
Coppin, K. E. K.
Geach, J. E.
Dudzeviciute, U.
Smail, Ian
Almaini, O.
An, Fangxia
Blain, A. W.
Chapman, S. C.
Chen, Chian-Chou
Conselice, C. J.
Dunlop, J. S.
Farrah, D.
Gullberg, B.
Hartley, W.
Ivison, R. J.
Karska, A.
Maltby, D.
Malek, K.
Michalowski, M. J.
Pope, A.
Salim, S.
Scott, D.
Simpson, C. J.
Simpson, J. M.
Swinbank, A. M.
Thomson, A. P.
Wardlow, J. L.
van der Werf, P. P.
Whitaker, K. E.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 492 (04) : 4927 - 4944
[2] An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: halo masses for submillimetre galaxies
Stach, S. M.
Smail, I
Amvrosiadis, A.
Swinbank, A. M.
Dudzeviciute, U.
Geach, J. E.
Almaini, O.
Birkin, J. E.
Chen, Chian-Chou
Conselice, C. J.
Cooke, E. A.
Coppin, K. E. K.
Dunlop, J. S.
Farrah, D.
Ikarashi, S.
Ivison, R. J.
Wardlow, J. L.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 504 (01) : 172 - 184
[3] An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Number Counts of Submillimeter Galaxies
Stach, Stuart M.
Smail, Ian
Swinbank, A. M.
Simpson, J. M.
Geach, J. E.
An, Fang Xia
Almaini, Omar
Arumugam, Vinodiran
Blain, A. W.
Chapman, S. C.
Chen, Chian-Chou
Conselice, C. J.
Cooke, E. A.
Coppin, K. E. K.
Dunlop, J. S.
Farrah, Duncan
Gullberg, B.
Hartley, W.
Ivison, R. J.
Maltby, D. T.
Michalowski, M. J.
Scott, Douglas
Simpson, Chris
Thomson, A. P.
Wardlow, J. L.
van der Werf, P.
ASTROPHYSICAL JOURNAL, 2018, 860 (02):
[4] An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: source catalogue and properties
Stach, Stuart M.
Dudzeviciute, U.
Smail, Ian
Swinbank, A. M.
Geach, J. E.
Simpson, J. M.
An, Fang Xia
Almaini, Omar
Arumugam, Vinodiran
Blain, A. W.
Chapman, S. C.
Chen, Chian-Chou
Conselice, C. J.
Cooke, E. A.
Coppin, K. E. K.
da Cunha, E.
Dunlop, J. S.
Farrah, Duncan
Gullberg, B.
Hodge, J. A.
Ivison, R. J.
Kocevski, Dale D.
Michalowski, M. J.
Miyaji, Takamitsu
Scott, Douglas
Thomson, A. P.
Wardlow, J. L.
Weiss, Axel
van der Werf, P.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 487 (04) : 4648 - 4668
[5] An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: The Far-infrared/Radio Correlation for High-redshift Dusty Star-forming Galaxies
Algera, H. S. B.
Smail, I.
Dudzeviciute, U.
Swinbank, A. M.
Stach, S.
Hodge, J. A.
Thomson, A. P.
Almaini, O.
Arumugam, V.
Blain, A. W.
Calistro-Rivera, G.
Chapman, S. C.
Chen, C. -C
da Cunha, E.
Farrah, D.
Leslie, S.
Scott, D.
van der Vlugt, D.
Wardlow, J. L.
van der Werf, P.
ASTROPHYSICAL JOURNAL, 2020, 903 (02):
[6] The SCUBA-2 Cosmology Legacy Survey: the clustering of submillimetre galaxies in the UKIDSS UDS field
Wilkinson, Aaron
Almaini, Omar
Chen, Chian-Chou
Smail, Ian
Arumugam, Vinodiran
Blain, Andrew
Chapin, Edward L.
Chapman, Scott C.
Conselice, Christopher J.
Cowley, William I.
Dunlop, James S.
Farrah, Duncan
Geach, James
Hartley, William G.
Ivison, Rob J.
Maltby, David T.
Michalowski, Michal J.
Mortlock, Alice
Scott, Douglas
Simpson, Chris
Simpson, James M.
van der Werf, Paul
Wild, Vivienne
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 464 (02) : 1380 - 1392
[7] THE SCUBA-2 COSMOLOGY LEGACY SURVEY: MULTIWAVELENGTH COUNTERPARTS TO 103 SUBMILLIMETER GALAXIES IN THE UKIDSS-UDS FIELD
Chen, Chian-Chou
Smail, Ian
Ivison, Rob J.
Arumugam, Vinodiran
Almaini, Omar
Conselice, Christopher J.
Geach, James E.
Hartley, Will G.
Ma, Cheng-Jiun
Mortlock, Alice
Simpson, Chris
Simpson, James M.
Swinbank, A. Mark
Aretxaga, Itziar
Blain, Andrew
Chapman, Scott C.
Dunlop, James S.
Farrah, Duncan
Halpern, Mark
Michalowski, Michal J.
van der Werf, Paul
Wilkinson, Aaron
Zavala, Jorge A.
ASTROPHYSICAL JOURNAL, 2016, 820 (02):
[8] The SCUBA-2 Cosmology Legacy Survey: Multi-wavelength Properties of ALMA-identified Submillimeter Galaxies in UKIDSS UDS
Simpson, J. M.
Smail, Ian
Swinbank, A. M.
Ivison, R. J.
Dunlop, J. S.
Geach, J. E.
Almaini, O.
Arumugam, V.
Bremer, M. N.
Chen, Chian-Chou
Conselice, C.
Coppin, K. E. K.
Farrah, D.
Ibar, E.
Hartley, W. G.
Ma, C. J.
Michalowski, M. J.
Scott, D.
Spaans, M.
Thomson, A. P.
van der Werf, P. P.
ASTROPHYSICAL JOURNAL, 2017, 839 (01):
[9] An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Identifying Candidate z ∼ 4.5 [C II] Emitters
Cooke, E. A.
Smail, Ian
Swinbank, A. M.
Stach, S. M.
An, Fang Xia
Gullberg, B.
Almaini, O.
Simpson, C. J.
Wardlow, J. L.
Blain, A. W.
Chapman, S. C.
Chen, Chian-Chou
Conselice, C. J.
Coppin, K. E. K.
Farrah, D.
Maltby, D. T.
Michalowski, M. J.
Scott, D.
Simpson, J. M.
Thomson, A. P.
van der Werf, P.
ASTROPHYSICAL JOURNAL, 2018, 861 (02):
[10] The SCUBA-2 Cosmology Legacy Survey: the submillimetre properties of Lyman-break galaxies at z=3-5
Coppin, K. E. K.
Geach, J. E.
Almaini, O.
Arumugam, V.
Dunlop, J. S.
Hartley, W. G.
Ivison, R. J.
Simpson, C. J.
Smith, D. J. B.
Swinbank, A. M.
Blain, A. W.
Bourne, N.
Bremer, M.
Conselice, C.
Harrison, C. M.
Mortlock, A.
Chapman, S. C.
Davies, L. J. M.
Farrah, D.
Gibb, A.
Jenness, T.
Karim, A.
Knudsen, K. K.
Ibar, E.
Michalowski, M. J.
Peacock, J. A.
Rigopoulou, D.
Robson, I.
Scott, D.
Stevens, J.
van der Werf, P. P.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 446 (02) : 1293 - 1304

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