Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey

Research output: Contribution to journal › Journal article › Research › peer-review

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Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey. / Wang, George C. P.; Hill, Ryley; Chapman, S. C.; Weiss, A.; Scott, Douglas; Apostolovski, Yordanka; Aravena, Manuel; Archipley, Melanie Ann; Bethermin, Matthieu; Canning, R. E. A.; De Breuck, Carlos; Dong, Chenxing; Everett, W. B.; Gonzalez, Anthony; Greve, Thomas R.; Hayward, Christopher C.; Hezaveh, Yashar; Jarugula, Sreevani; Marrone, D. P.; Phadke, Kedar A.; Reuter, Cassie A.; Rotermund, K. M.; Spilker, Justin S.; Vieira, Joaquin D.

In: Monthly Notices of the Royal Astronomical Society, Vol. 508, No. 3, 22.12.2021, p. 3754-3770.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Wang, GCP, Hill, R, Chapman, SC, Weiss, A, Scott, D, Apostolovski, Y, Aravena, M, Archipley, MA, Bethermin, M, Canning, REA, De Breuck, C, Dong, C, Everett, WB, Gonzalez, A, Greve, TR, Hayward, CC, Hezaveh, Y, Jarugula, S, Marrone, DP, Phadke, KA, Reuter, CA, Rotermund, KM, Spilker, JS & Vieira, JD 2021, 'Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey', Monthly Notices of the Royal Astronomical Society, vol. 508, no. 3, pp. 3754-3770. https://doi.org/10.1093/mnras/stab2800

APA

Wang, G. C. P., Hill, R., Chapman, S. C., Weiss, A., Scott, D., Apostolovski, Y., Aravena, M., Archipley, M. A., Bethermin, M., Canning, R. E. A., De Breuck, C., Dong, C., Everett, W. B., Gonzalez, A., Greve, T. R., Hayward, C. C., Hezaveh, Y., Jarugula, S., Marrone, D. P., ... Vieira, J. D. (2021). Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey. Monthly Notices of the Royal Astronomical Society, 508(3), 3754-3770. https://doi.org/10.1093/mnras/stab2800

Vancouver

Wang GCP, Hill R, Chapman SC, Weiss A, Scott D, Apostolovski Y et al. Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey. Monthly Notices of the Royal Astronomical Society. 2021 Dec 22;508(3):3754-3770. https://doi.org/10.1093/mnras/stab2800

Author

Wang, George C. P. ; Hill, Ryley ; Chapman, S. C. ; Weiss, A. ; Scott, Douglas ; Apostolovski, Yordanka ; Aravena, Manuel ; Archipley, Melanie Ann ; Bethermin, Matthieu ; Canning, R. E. A. ; De Breuck, Carlos ; Dong, Chenxing ; Everett, W. B. ; Gonzalez, Anthony ; Greve, Thomas R. ; Hayward, Christopher C. ; Hezaveh, Yashar ; Jarugula, Sreevani ; Marrone, D. P. ; Phadke, Kedar A. ; Reuter, Cassie A. ; Rotermund, K. M. ; Spilker, Justin S. ; Vieira, Joaquin D. / Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey. In: Monthly Notices of the Royal Astronomical Society. 2021 ; Vol. 508, No. 3. pp. 3754-3770.

Bibtex

@article{08600b0fa5b94fab89173e7355bbd420,
title = "Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey",
abstract = "We present APEX-LABOCA 870-mu m observations of the fields surrounding the nine brightest high-redshift unlensed objects discovered in the South Pole Telescope's (SPT) 2500 deg(2) survey. Initially seen as point sources by SPT's 1-arcmin beam, the 19-arcsec resolution of our new data enables us to deblend these objects and search for submillimetre (submm) sources in the surrounding fields. We find a total of 98 sources above a threshold of 3.7 sigma in the observed area of 1300 arcmin(2), where the bright central cores resolve into multiple components. After applying a radial cut to our LABOCA sources to achieve uniform sensitivity and angular size across each of the nine fields, we compute the cumulative and differential number counts and compare them to estimates of the background, finding a significant overdensity of delta approximate to 10 at S-8(70) = 14 mJy. The large overdensities of bright submm sources surrounding these fields suggest that they could be candidate protoclusters undergoing massive star formation events. Photometric and spectroscopic redshifts of the unlensed central objects range from z =3 to 7, implying a volume density of star-forming protoclusters of approximately 0.1 Gpc(-3). If the surrounding submm sources in these fields are at the same redshifts as the central objects, then the total star formation rates of these candidate protoclusters reach 10 000 M-circle dot yr(-1), making them much more active at these redshifts than seen so far in either simulations or observations.",
keywords = "galaxies: abundances, galaxies: clusters: general, galaxies: high-redshift, submillimetre: galaxies, COSMOLOGY LEGACY SURVEY, FAR-INFRARED PROPERTIES, LARGE-SCALE STRUCTURE, GALAXY CLUSTER, STAR-FORMATION, BOLOMETER CAMERA, HERSCHEL-SPIRE, ALMA SURVEY, REDSHIFT DISTRIBUTION, MILLIMETER-BRIGHT",
author = "Wang, {George C. P.} and Ryley Hill and Chapman, {S. C.} and A. Weiss and Douglas Scott and Yordanka Apostolovski and Manuel Aravena and Archipley, {Melanie Ann} and Matthieu Bethermin and Canning, {R. E. A.} and {De Breuck}, Carlos and Chenxing Dong and Everett, {W. B.} and Anthony Gonzalez and Greve, {Thomas R.} and Hayward, {Christopher C.} and Yashar Hezaveh and Sreevani Jarugula and Marrone, {D. P.} and Phadke, {Kedar A.} and Reuter, {Cassie A.} and Rotermund, {K. M.} and Spilker, {Justin S.} and Vieira, {Joaquin D.}",
year = "2021",
month = dec,
day = "22",
doi = "10.1093/mnras/stab2800",
language = "English",
volume = "508",
pages = "3754--3770",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Overdensities of submillimetre-bright sources around candidate protocluster cores selected from the South Pole Telescope survey

AU - Wang, George C. P.

AU - Hill, Ryley

AU - Chapman, S. C.

AU - Weiss, A.

AU - Scott, Douglas

AU - Apostolovski, Yordanka

AU - Aravena, Manuel

AU - Archipley, Melanie Ann

AU - Bethermin, Matthieu

AU - Canning, R. E. A.

AU - De Breuck, Carlos

AU - Dong, Chenxing

AU - Everett, W. B.

AU - Gonzalez, Anthony

AU - Greve, Thomas R.

AU - Hayward, Christopher C.

AU - Hezaveh, Yashar

AU - Jarugula, Sreevani

AU - Marrone, D. P.

AU - Phadke, Kedar A.

AU - Reuter, Cassie A.

AU - Rotermund, K. M.

AU - Spilker, Justin S.

AU - Vieira, Joaquin D.

PY - 2021/12/22

Y1 - 2021/12/22

N2 - We present APEX-LABOCA 870-mu m observations of the fields surrounding the nine brightest high-redshift unlensed objects discovered in the South Pole Telescope's (SPT) 2500 deg(2) survey. Initially seen as point sources by SPT's 1-arcmin beam, the 19-arcsec resolution of our new data enables us to deblend these objects and search for submillimetre (submm) sources in the surrounding fields. We find a total of 98 sources above a threshold of 3.7 sigma in the observed area of 1300 arcmin(2), where the bright central cores resolve into multiple components. After applying a radial cut to our LABOCA sources to achieve uniform sensitivity and angular size across each of the nine fields, we compute the cumulative and differential number counts and compare them to estimates of the background, finding a significant overdensity of delta approximate to 10 at S-8(70) = 14 mJy. The large overdensities of bright submm sources surrounding these fields suggest that they could be candidate protoclusters undergoing massive star formation events. Photometric and spectroscopic redshifts of the unlensed central objects range from z =3 to 7, implying a volume density of star-forming protoclusters of approximately 0.1 Gpc(-3). If the surrounding submm sources in these fields are at the same redshifts as the central objects, then the total star formation rates of these candidate protoclusters reach 10 000 M-circle dot yr(-1), making them much more active at these redshifts than seen so far in either simulations or observations.

AB - We present APEX-LABOCA 870-mu m observations of the fields surrounding the nine brightest high-redshift unlensed objects discovered in the South Pole Telescope's (SPT) 2500 deg(2) survey. Initially seen as point sources by SPT's 1-arcmin beam, the 19-arcsec resolution of our new data enables us to deblend these objects and search for submillimetre (submm) sources in the surrounding fields. We find a total of 98 sources above a threshold of 3.7 sigma in the observed area of 1300 arcmin(2), where the bright central cores resolve into multiple components. After applying a radial cut to our LABOCA sources to achieve uniform sensitivity and angular size across each of the nine fields, we compute the cumulative and differential number counts and compare them to estimates of the background, finding a significant overdensity of delta approximate to 10 at S-8(70) = 14 mJy. The large overdensities of bright submm sources surrounding these fields suggest that they could be candidate protoclusters undergoing massive star formation events. Photometric and spectroscopic redshifts of the unlensed central objects range from z =3 to 7, implying a volume density of star-forming protoclusters of approximately 0.1 Gpc(-3). If the surrounding submm sources in these fields are at the same redshifts as the central objects, then the total star formation rates of these candidate protoclusters reach 10 000 M-circle dot yr(-1), making them much more active at these redshifts than seen so far in either simulations or observations.

KW - galaxies: abundances

KW - galaxies: clusters: general

KW - galaxies: high-redshift

KW - submillimetre: galaxies

KW - COSMOLOGY LEGACY SURVEY

KW - FAR-INFRARED PROPERTIES

KW - LARGE-SCALE STRUCTURE

KW - GALAXY CLUSTER

KW - STAR-FORMATION

KW - BOLOMETER CAMERA

KW - HERSCHEL-SPIRE

KW - ALMA SURVEY

KW - REDSHIFT DISTRIBUTION

KW - MILLIMETER-BRIGHT

U2 - 10.1093/mnras/stab2800

DO - 10.1093/mnras/stab2800

M3 - Journal article

VL - 508

SP - 3754

EP - 3770

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 3

ER -

ID: 299752366