SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts

Bunyo Hatsukade; Kotaro Kohno; Hideki Umehata; Itziar Aretxaga; Karina I. Caputi; James S. Dunlop; Soh Ikarashi; Daisuke Iono; Rob J. Ivison; Minju Lee; Ryu Makiya; Yuichi Matsuda; Kentaro Motohara; Kouichiro Nakanishi; Kouji Ohta; Ken-ich Tadaki; Yoichi Tamura; Wei-Hao Wang; Grant W. Wilson; Yuki Yamaguchi; Min S. Yun

doi:10.1093/pasj/psw026

SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts

Bunyo Hatsukade, Kotaro Kohno, Hideki Umehata, Itziar Aretxaga, Karina I. Caputi, James S. Dunlop, Soh Ikarashi, Daisuke Iono, Rob J. Ivison, Minju Lee, Ryu Makiya, Yuichi Matsuda, Kentaro Motohara, Kouichiro Nakanishi, Kouji Ohta, Ken-ich Tadaki, Yoichi Tamura, Wei-Hao Wang, Grant W. Wilson, Yuki YamaguchiMin S. Yun

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report 1.1-mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studies are based on the ensemble of serendipitously detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets. We derive number counts in the flux range of 0.2-2 mJy by using 23 (≥4σ) sources detected in a continuous 2.0-arcmin2 area of the SXDF. The number counts are consistent with previous results within errors, suggesting that the counts derived from serendipitously detected sources are not significantly biased, although there could be field-to-field variation due to the small survey area. By using the best-fitting function of the number counts, we find that ˜40% of the extragalactic background light at 1.1 mm is resolved at S1.1mm > 0.2 mJy.

Original language	English
Pages (from-to)	36
Journal	Publications of Astronomical Society of Japan
Volume	68
Issue number	3
Early online date	4 Apr 2016
DOIs	https://doi.org/10.1093/pasj/psw026
Publication status	Published - 1 Jun 2016

Keywords

cosmology: observations
galaxies: evolution
galaxies: formation
galaxies: high-redshift
submillimeter: galaxies

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10.1093/pasj/psw026

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Hatsukade, B., Kohno, K., Umehata, H., Aretxaga, I., Caputi, K. I., Dunlop, J. S., Ikarashi, S., Iono, D., Ivison, R. J., Lee, M., Makiya, R., Matsuda, Y., Motohara, K., Nakanishi, K., Ohta, K., Tadaki, K., Tamura, Y., Wang, W-H., Wilson, G. W., ... Yun, M. S. (2016). SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts. Publications of Astronomical Society of Japan, 68(3), 36. https://doi.org/10.1093/pasj/psw026

@article{97ef25807f974688a1064c55ae7fc06d,

title = "SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts",

abstract = "We report 1.1-mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studies are based on the ensemble of serendipitously detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets. We derive number counts in the flux range of 0.2-2 mJy by using 23 (≥4σ) sources detected in a continuous 2.0-arcmin2 area of the SXDF. The number counts are consistent with previous results within errors, suggesting that the counts derived from serendipitously detected sources are not significantly biased, although there could be field-to-field variation due to the small survey area. By using the best-fitting function of the number counts, we find that ˜40% of the extragalactic background light at 1.1 mm is resolved at S1.1mm > 0.2 mJy.",

keywords = "cosmology: observations, galaxies: evolution, galaxies: formation, galaxies: high-redshift, submillimeter: galaxies",

author = "Bunyo Hatsukade and Kotaro Kohno and Hideki Umehata and Itziar Aretxaga and Caputi, {Karina I.} and Dunlop, {James S.} and Soh Ikarashi and Daisuke Iono and Ivison, {Rob J.} and Minju Lee and Ryu Makiya and Yuichi Matsuda and Kentaro Motohara and Kouichiro Nakanishi and Kouji Ohta and Ken-ich Tadaki and Yoichi Tamura and Wei-Hao Wang and Wilson, {Grant W.} and Yuki Yamaguchi and Yun, {Min S.}",

year = "2016",

month = jun,

day = "1",

doi = "10.1093/pasj/psw026",

language = "English",

volume = "68",

pages = "36",

journal = "Publications of Astronomical Society of Japan",

issn = "0004-6264",

publisher = "Oxford University Press",

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Hatsukade, B, Kohno, K, Umehata, H, Aretxaga, I, Caputi, KI, Dunlop, JS, Ikarashi, S, Iono, D, Ivison, RJ, Lee, M, Makiya, R, Matsuda, Y, Motohara, K, Nakanishi, K, Ohta, K, Tadaki, K, Tamura, Y, Wang, W-H, Wilson, GW, Yamaguchi, Y & Yun, MS 2016, 'SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts', Publications of Astronomical Society of Japan, vol. 68, no. 3, pp. 36. https://doi.org/10.1093/pasj/psw026

TY - JOUR

T1 - SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts

AU - Hatsukade, Bunyo

AU - Kohno, Kotaro

AU - Umehata, Hideki

AU - Aretxaga, Itziar

AU - Caputi, Karina I.

AU - Dunlop, James S.

AU - Ikarashi, Soh

AU - Iono, Daisuke

AU - Ivison, Rob J.

AU - Lee, Minju

AU - Makiya, Ryu

AU - Matsuda, Yuichi

AU - Motohara, Kentaro

AU - Nakanishi, Kouichiro

AU - Ohta, Kouji

AU - Tadaki, Ken-ich

AU - Tamura, Yoichi

AU - Wang, Wei-Hao

AU - Wilson, Grant W.

AU - Yamaguchi, Yuki

AU - Yun, Min S.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We report 1.1-mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studies are based on the ensemble of serendipitously detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets. We derive number counts in the flux range of 0.2-2 mJy by using 23 (≥4σ) sources detected in a continuous 2.0-arcmin2 area of the SXDF. The number counts are consistent with previous results within errors, suggesting that the counts derived from serendipitously detected sources are not significantly biased, although there could be field-to-field variation due to the small survey area. By using the best-fitting function of the number counts, we find that ˜40% of the extragalactic background light at 1.1 mm is resolved at S1.1mm > 0.2 mJy.

AB - We report 1.1-mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF). The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion. However, previous studies are based on the ensemble of serendipitously detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets. We derive number counts in the flux range of 0.2-2 mJy by using 23 (≥4σ) sources detected in a continuous 2.0-arcmin2 area of the SXDF. The number counts are consistent with previous results within errors, suggesting that the counts derived from serendipitously detected sources are not significantly biased, although there could be field-to-field variation due to the small survey area. By using the best-fitting function of the number counts, we find that ˜40% of the extragalactic background light at 1.1 mm is resolved at S1.1mm > 0.2 mJy.

KW - cosmology: observations

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: high-redshift

KW - submillimeter: galaxies

U2 - 10.1093/pasj/psw026

DO - 10.1093/pasj/psw026

M3 - Article

VL - 68

SP - 36

JO - Publications of Astronomical Society of Japan

JF - Publications of Astronomical Society of Japan

SN - 0004-6264

IS - 3

ER -

SXDF-ALMA 2-arcmin2 deep survey: 1.1-mm number counts

Abstract

Keywords

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