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An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Identifying candidate z~4.5 [CII] emitters. / Cooke, E. A.; Smail, Ian; Swinbank, A. M.; Stach, S. M.; An, FangXia; 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.; Thomson, A. P.; Werf, P. van der.

In: The Astrophysical Journal, Vol. 861, No. 2, 100, 10.07.2018.

Research output: Contribution to journalArticlepeer-review

Harvard

Cooke, EA, Smail, I, Swinbank, AM, Stach, SM, An, F, Gullberg, B, Almaini, O, Simpson, CJ, Wardlow, JL, Blain, AW, Chapman, SC, Chen, C-C, Conselice, CJ, Coppin, KEK, Farrah, D, Maltby, DT, Michalowski, MJ, Scott, D, Thomson, AP & Werf, PVD 2018, 'An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Identifying candidate z~4.5 [CII] emitters', The Astrophysical Journal, vol. 861, no. 2, 100. https://doi.org/10.3847/1538-4357/aac6ba

APA

Cooke, E. A., Smail, I., Swinbank, A. M., Stach, S. M., An, F., Gullberg, B., Almaini, O., Simpson, C. J., Wardlow, J. L., Blain, A. W., Chapman, S. C., Chen, C-C., Conselice, C. J., Coppin, K. E. K., Farrah, D., Maltby, D. T., Michalowski, M. J., Scott, D., Thomson, A. P., & Werf, P. V. D. (2018). An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Identifying candidate z~4.5 [CII] emitters. The Astrophysical Journal, 861(2), [100]. https://doi.org/10.3847/1538-4357/aac6ba

Vancouver

Author

Cooke, E. A. ; Smail, Ian ; Swinbank, A. M. ; Stach, S. M. ; An, FangXia ; 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. ; Thomson, A. P. ; Werf, P. van der. / An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Identifying candidate z~4.5 [CII] emitters. In: The Astrophysical Journal. 2018 ; Vol. 861, No. 2.

Bibtex

@article{0aa5777ce60241fbaf87bdc6ef704ef0,
title = "An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Identifying candidate z~4.5 [CII] emitters",
abstract = "We report the results of a search for serendipitous [C ii] 157.74 μm emitters at z ≃ 4.4-4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ∼50 arcmin 2 of the sky toward 695 luminous (S 870 ≈ 1 mJy) submillimeter galaxies (SMGs), selected from the SCUBA-2 Cosmology Legacy Survey 0.96 deg 2 Ultra Deep Survey (UDS) field. We detect 10 candidate line emitters, with an expected false detection rate of 10%. All of these line emitters correspond to 870 μm continuum-detected sources in AS2UDS. The emission lines in two emitters appear to be high-J CO, but the remainder have multi-wavelength properties consistent with [C ii] from z ≃ 4.5 galaxies. Using our sample, we place a lower limit of on the space density of luminous (L IR ≃ 10 13 ) SMGs at z = 4.40-4.66, suggesting % of SMGs with mJy lie at 4 < z < 5. From stacking the high-resolution (∼0.″15 full-width half maximum) ALMA 870 μm imaging, we show that the [C ii] line emission is more extended than the continuum dust emission, with an average effective radius for the [C ii] of kpc, compared to r e = 1.0 + 0.1 kpc for the continuum (rest-frame 160 μm). By fitting the far-infrared photometry for these galaxies from 100 to 870 μm, we show that SMGs at z ∼ 4.5 have a median dust temperature of T d = 55 -4 K. This is systematically warmer than 870 μm selected SMGs at z ≃ 2, which typically have temperatures around 35 K. These z ≃ 4.5 SMGs display a steeper trend in the luminosity-temperature plane than z ≤ 2 SMGs. We discuss the implications of this result in terms of the selection biases of high-redshift starbursts in far-infrared/submillimeter surveys. ",
keywords = "galaxies: high-redshift, submillimeter: galaxies",
author = "Cooke, {E. A.} and Ian Smail and Swinbank, {A. M.} and Stach, {S. M.} and FangXia An and B. Gullberg and O. Almaini and Simpson, {C. J.} and Wardlow, {J. L.} and Blain, {A. W.} and Chapman, {S. C.} and Chian-Chou Chen and Conselice, {C. J.} and Coppin, {K. E. K.} and D. Farrah and Maltby, {D. T.} and Michalowski, {M. J.} and D. Scott and Thomson, {A. P.} and Werf, {P. van der}",
note = "{\textcopyright} 2018 The American Astronomical Society. All rights reserved. 16 pages, 10 figures, accepted for publication in ApJ",
year = "2018",
month = jul,
day = "10",
doi = "10.3847/1538-4357/aac6ba",
language = "English",
volume = "861",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field

T2 - Identifying candidate z~4.5 [CII] emitters

AU - Cooke, E. A.

AU - Smail, Ian

AU - Swinbank, A. M.

AU - Stach, S. M.

AU - An, FangXia

AU - Gullberg, B.

AU - Almaini, O.

AU - Simpson, C. J.

AU - Wardlow, J. L.

AU - Blain, A. W.

AU - Chapman, S. C.

AU - Chen, Chian-Chou

AU - Conselice, C. J.

AU - Coppin, K. E. K.

AU - Farrah, D.

AU - Maltby, D. T.

AU - Michalowski, M. J.

AU - Scott, D.

AU - Thomson, A. P.

AU - Werf, P. van der

N1 - © 2018 The American Astronomical Society. All rights reserved. 16 pages, 10 figures, accepted for publication in ApJ

PY - 2018/7/10

Y1 - 2018/7/10

N2 - We report the results of a search for serendipitous [C ii] 157.74 μm emitters at z ≃ 4.4-4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ∼50 arcmin 2 of the sky toward 695 luminous (S 870 ≈ 1 mJy) submillimeter galaxies (SMGs), selected from the SCUBA-2 Cosmology Legacy Survey 0.96 deg 2 Ultra Deep Survey (UDS) field. We detect 10 candidate line emitters, with an expected false detection rate of 10%. All of these line emitters correspond to 870 μm continuum-detected sources in AS2UDS. The emission lines in two emitters appear to be high-J CO, but the remainder have multi-wavelength properties consistent with [C ii] from z ≃ 4.5 galaxies. Using our sample, we place a lower limit of on the space density of luminous (L IR ≃ 10 13 ) SMGs at z = 4.40-4.66, suggesting % of SMGs with mJy lie at 4 < z < 5. From stacking the high-resolution (∼0.″15 full-width half maximum) ALMA 870 μm imaging, we show that the [C ii] line emission is more extended than the continuum dust emission, with an average effective radius for the [C ii] of kpc, compared to r e = 1.0 + 0.1 kpc for the continuum (rest-frame 160 μm). By fitting the far-infrared photometry for these galaxies from 100 to 870 μm, we show that SMGs at z ∼ 4.5 have a median dust temperature of T d = 55 -4 K. This is systematically warmer than 870 μm selected SMGs at z ≃ 2, which typically have temperatures around 35 K. These z ≃ 4.5 SMGs display a steeper trend in the luminosity-temperature plane than z ≤ 2 SMGs. We discuss the implications of this result in terms of the selection biases of high-redshift starbursts in far-infrared/submillimeter surveys.

AB - We report the results of a search for serendipitous [C ii] 157.74 μm emitters at z ≃ 4.4-4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ∼50 arcmin 2 of the sky toward 695 luminous (S 870 ≈ 1 mJy) submillimeter galaxies (SMGs), selected from the SCUBA-2 Cosmology Legacy Survey 0.96 deg 2 Ultra Deep Survey (UDS) field. We detect 10 candidate line emitters, with an expected false detection rate of 10%. All of these line emitters correspond to 870 μm continuum-detected sources in AS2UDS. The emission lines in two emitters appear to be high-J CO, but the remainder have multi-wavelength properties consistent with [C ii] from z ≃ 4.5 galaxies. Using our sample, we place a lower limit of on the space density of luminous (L IR ≃ 10 13 ) SMGs at z = 4.40-4.66, suggesting % of SMGs with mJy lie at 4 < z < 5. From stacking the high-resolution (∼0.″15 full-width half maximum) ALMA 870 μm imaging, we show that the [C ii] line emission is more extended than the continuum dust emission, with an average effective radius for the [C ii] of kpc, compared to r e = 1.0 + 0.1 kpc for the continuum (rest-frame 160 μm). By fitting the far-infrared photometry for these galaxies from 100 to 870 μm, we show that SMGs at z ∼ 4.5 have a median dust temperature of T d = 55 -4 K. This is systematically warmer than 870 μm selected SMGs at z ≃ 2, which typically have temperatures around 35 K. These z ≃ 4.5 SMGs display a steeper trend in the luminosity-temperature plane than z ≤ 2 SMGs. We discuss the implications of this result in terms of the selection biases of high-redshift starbursts in far-infrared/submillimeter surveys.

KW - galaxies: high-redshift

KW - submillimeter: galaxies

UR - http://www.scopus.com/inward/record.url?scp=85050674124&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/aac6ba

DO - 10.3847/1538-4357/aac6ba

M3 - Article

VL - 861

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 100

ER -