University of Hertfordshire

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From the same journal

By the same authors

KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES

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Standard

KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES. / Hodge, Jackie; Swinbank, Mark; Simpson, James; Smail, Ian; Walter, F.; Alexander, D.M.; Bertoldi, Frank; Biggs, Andy; Brandt, Niel; Chapman, S.C.; Coppin, Kristen; Chen, Chian Chou; Cox, Pierre; Dannerbauer, Helmut; Edge, A. C.; Greve, Thomas; J. Ivison, R.; Karim, A.; Knudsen, K.; Menten, Karl; Rix, H-W.; Schinnerer, Eva; Wardlow, J. L.; Weiss, A.; van der Werf, P.

In: The Astrophysical Journal, Vol. 833, No. 1, 103, 10.12.2016.

Research output: Contribution to journalArticlepeer-review

Harvard

Hodge, J, Swinbank, M, Simpson, J, Smail, I, Walter, F, Alexander, DM, Bertoldi, F, Biggs, A, Brandt, N, Chapman, SC, Coppin, K, Chen, CC, Cox, P, Dannerbauer, H, Edge, AC, Greve, T, J. Ivison, R, Karim, A, Knudsen, K, Menten, K, Rix, H-W, Schinnerer, E, Wardlow, JL, Weiss, A & van der Werf, P 2016, 'KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES', The Astrophysical Journal, vol. 833, no. 1, 103. https://doi.org/10.3847/1538-4357/833/1/103

APA

Hodge, J., Swinbank, M., Simpson, J., Smail, I., Walter, F., Alexander, D. M., Bertoldi, F., Biggs, A., Brandt, N., Chapman, S. C., Coppin, K., Chen, C. C., Cox, P., Dannerbauer, H., Edge, A. C., Greve, T., J. Ivison, R., Karim, A., Knudsen, K., ... van der Werf, P. (2016). KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES. The Astrophysical Journal, 833(1), [103]. https://doi.org/10.3847/1538-4357/833/1/103

Vancouver

Hodge J, Swinbank M, Simpson J, Smail I, Walter F, Alexander DM et al. KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES. The Astrophysical Journal. 2016 Dec 10;833(1). 103. https://doi.org/10.3847/1538-4357/833/1/103

Author

Hodge, Jackie ; Swinbank, Mark ; Simpson, James ; Smail, Ian ; Walter, F. ; Alexander, D.M. ; Bertoldi, Frank ; Biggs, Andy ; Brandt, Niel ; Chapman, S.C. ; Coppin, Kristen ; Chen, Chian Chou ; Cox, Pierre ; Dannerbauer, Helmut ; Edge, A. C. ; Greve, Thomas ; J. Ivison, R. ; Karim, A. ; Knudsen, K. ; Menten, Karl ; Rix, H-W. ; Schinnerer, Eva ; Wardlow, J. L. ; Weiss, A. ; van der Werf, P. / KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES. In: The Astrophysical Journal. 2016 ; Vol. 833, No. 1.

Bibtex

@article{46ed20af9ce4482fbdcffa2e5e3390da,
title = "KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES",
abstract = "We present high-resolution (0farcs16) 870 μm Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (${L}_{\mathrm{IR}}\sim 4\times {10}^{12}\,{L}_{\odot }$) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South. This dust imaging traces the dust-obscured star formation in these $z\sim 2.5$ galaxies on ~1.3 kpc scales. The emission has a median effective radius of R e = 0farcs24 ± 0farcs02, corresponding to a typical physical size of ${R}_{e}=$ 1.8 ± 0.2 kpc. We derive a median S{\'e}rsic index of n = 0.9 ± 0.2, implying that the dust emission is remarkably disk-like at the current resolution and sensitivity. We use different weighting schemes with the visibilities to search for clumps on 0farcs12 (~1.0 kpc) scales, but we find no significant evidence for clumping in the majority of cases. Indeed, we demonstrate using simulations that the observed morphologies are generally consistent with smooth exponential disks, suggesting that caution should be exercised when identifying candidate clumps in even moderate signal-to-noise ratio interferometric data. We compare our maps to comparable-resolution Hubble Space Telescope ${H}_{160}$-band images, finding that the stellar morphologies appear significantly more extended and disturbed, and suggesting that major mergers may be responsible for driving the formation of the compact dust disks we observe. The stark contrast between the obscured and unobscured morphologies may also have implications for SED fitting routines that assume the dust is co-located with the optical/near-IR continuum emission. Finally, we discuss the potential of the current bursts of star formation to transform the observed galaxy sizes and light profiles, showing that the $z\sim 0$ descendants of these SMGs are expected to have stellar masses, effective radii, and gas surface densities consistent with the most compact massive (${M}_{* }\,\sim $ 1–2 × 1011 ${M}_{\odot }$) early-type galaxies observed locally.",
keywords = "galaxies: evolution, galaxies: formation, galaxies: high-redshift, galaxies: starburst, submillimeter: galaxies",
author = "Jackie Hodge and Mark Swinbank and James Simpson and Ian Smail and F. Walter and D.M. Alexander and Frank Bertoldi and Andy Biggs and Niel Brandt and S.C. Chapman and Kristen Coppin and Chen, {Chian Chou} and Pierre Cox and Helmut Dannerbauer and Edge, {A. C.} and Thomas Greve and {J. Ivison}, R. and A. Karim and K. Knudsen and Karl Menten and H-W. Rix and Eva Schinnerer and Wardlow, {J. L.} and A. Weiss and {van der Werf}, P.",
note = "This is an author-created, un-copyedited version of an article published in The Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript of any version derived from it. The Version of Record is available online at doi: 10.3847/1538-4357/833/1/103. {\textcopyright} 2016. The American Astronomical Society. All rights reserved. ",
year = "2016",
month = dec,
day = "10",
doi = "10.3847/1538-4357/833/1/103",
language = "English",
volume = "833",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES

AU - Hodge, Jackie

AU - Swinbank, Mark

AU - Simpson, James

AU - Smail, Ian

AU - Walter, F.

AU - Alexander, D.M.

AU - Bertoldi, Frank

AU - Biggs, Andy

AU - Brandt, Niel

AU - Chapman, S.C.

AU - Coppin, Kristen

AU - Chen, Chian Chou

AU - Cox, Pierre

AU - Dannerbauer, Helmut

AU - Edge, A. C.

AU - Greve, Thomas

AU - J. Ivison, R.

AU - Karim, A.

AU - Knudsen, K.

AU - Menten, Karl

AU - Rix, H-W.

AU - Schinnerer, Eva

AU - Wardlow, J. L.

AU - Weiss, A.

AU - van der Werf, P.

N1 - This is an author-created, un-copyedited version of an article published in The Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript of any version derived from it. The Version of Record is available online at doi: 10.3847/1538-4357/833/1/103. © 2016. The American Astronomical Society. All rights reserved.

PY - 2016/12/10

Y1 - 2016/12/10

N2 - We present high-resolution (0farcs16) 870 μm Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (${L}_{\mathrm{IR}}\sim 4\times {10}^{12}\,{L}_{\odot }$) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South. This dust imaging traces the dust-obscured star formation in these $z\sim 2.5$ galaxies on ~1.3 kpc scales. The emission has a median effective radius of R e = 0farcs24 ± 0farcs02, corresponding to a typical physical size of ${R}_{e}=$ 1.8 ± 0.2 kpc. We derive a median Sérsic index of n = 0.9 ± 0.2, implying that the dust emission is remarkably disk-like at the current resolution and sensitivity. We use different weighting schemes with the visibilities to search for clumps on 0farcs12 (~1.0 kpc) scales, but we find no significant evidence for clumping in the majority of cases. Indeed, we demonstrate using simulations that the observed morphologies are generally consistent with smooth exponential disks, suggesting that caution should be exercised when identifying candidate clumps in even moderate signal-to-noise ratio interferometric data. We compare our maps to comparable-resolution Hubble Space Telescope ${H}_{160}$-band images, finding that the stellar morphologies appear significantly more extended and disturbed, and suggesting that major mergers may be responsible for driving the formation of the compact dust disks we observe. The stark contrast between the obscured and unobscured morphologies may also have implications for SED fitting routines that assume the dust is co-located with the optical/near-IR continuum emission. Finally, we discuss the potential of the current bursts of star formation to transform the observed galaxy sizes and light profiles, showing that the $z\sim 0$ descendants of these SMGs are expected to have stellar masses, effective radii, and gas surface densities consistent with the most compact massive (${M}_{* }\,\sim $ 1–2 × 1011 ${M}_{\odot }$) early-type galaxies observed locally.

AB - We present high-resolution (0farcs16) 870 μm Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (${L}_{\mathrm{IR}}\sim 4\times {10}^{12}\,{L}_{\odot }$) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South. This dust imaging traces the dust-obscured star formation in these $z\sim 2.5$ galaxies on ~1.3 kpc scales. The emission has a median effective radius of R e = 0farcs24 ± 0farcs02, corresponding to a typical physical size of ${R}_{e}=$ 1.8 ± 0.2 kpc. We derive a median Sérsic index of n = 0.9 ± 0.2, implying that the dust emission is remarkably disk-like at the current resolution and sensitivity. We use different weighting schemes with the visibilities to search for clumps on 0farcs12 (~1.0 kpc) scales, but we find no significant evidence for clumping in the majority of cases. Indeed, we demonstrate using simulations that the observed morphologies are generally consistent with smooth exponential disks, suggesting that caution should be exercised when identifying candidate clumps in even moderate signal-to-noise ratio interferometric data. We compare our maps to comparable-resolution Hubble Space Telescope ${H}_{160}$-band images, finding that the stellar morphologies appear significantly more extended and disturbed, and suggesting that major mergers may be responsible for driving the formation of the compact dust disks we observe. The stark contrast between the obscured and unobscured morphologies may also have implications for SED fitting routines that assume the dust is co-located with the optical/near-IR continuum emission. Finally, we discuss the potential of the current bursts of star formation to transform the observed galaxy sizes and light profiles, showing that the $z\sim 0$ descendants of these SMGs are expected to have stellar masses, effective radii, and gas surface densities consistent with the most compact massive (${M}_{* }\,\sim $ 1–2 × 1011 ${M}_{\odot }$) early-type galaxies observed locally.

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: high-redshift

KW - galaxies: starburst

KW - submillimeter: galaxies

U2 - 10.3847/1538-4357/833/1/103

DO - 10.3847/1538-4357/833/1/103

M3 - Article

VL - 833

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 103

ER -