Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope
N. Welikala et al. We probe star formation in the environments of massive (∼1013 M⊙) dark matter haloes at redshifts of z ∼ 1. This star formation is linked to a submillimetre clustering signal which we detect in maps of the Planck High Frequency Instrument that are stacked at the positions of a sam...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Oxford University Press
2020
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Online Access: | http://hdl.handle.net/10261/221968 https://doi.org/10.1093/mnras/stv2302 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100001665 https://doi.org/10.13039/501100000780 |
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ftcsic:oai:digital.csic.es:10261/221968 2024-02-11T10:08:41+01:00 Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope Welikala, N. Aird, James González-Nuevo, J. Lagache, Guilaine Malkan, M. A. Montier, L. Murphy, E.J. Pointecouteau, E. Puget, J.-L. Scott, D. Weiß, A. Agence Nationale de la Recherche (France) Consejo Superior de Investigaciones Científicas (España) European Commission Ministerio de Ciencia e Innovación (España) 2020 http://hdl.handle.net/10261/221968 https://doi.org/10.1093/mnras/stv2302 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100001665 https://doi.org/10.13039/501100000780 en eng Oxford University Press Publisher's version https://doi.org/10.1093/mnras/stv2302 Sí Monthly Notices of the Royal Astronomical Society: Letters 455(2): 1629–1646 (2020) http://hdl.handle.net/10261/221968 doi:10.1093/mnras/stv2302 1745-3933 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100000780 open Surveys Galaxies: formation Galaxies: statistics Diffuse radiation artículo http://purl.org/coar/resource_type/c_6501 2020 ftcsic https://doi.org/10.1093/mnras/stv230210.13039/50110000483710.13039/50110000333910.13039/50110000166510.13039/501100000780 2024-01-16T10:58:58Z N. Welikala et al. We probe star formation in the environments of massive (∼1013 M⊙) dark matter haloes at redshifts of z ∼ 1. This star formation is linked to a submillimetre clustering signal which we detect in maps of the Planck High Frequency Instrument that are stacked at the positions of a sample of high redshift (z > 2) strongly lensed dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope (SPT) 2500 deg2 survey. The clustering signal has submillimetre colours which are consistent with the mean redshift of the foreground lensing haloes (z ∼ 1). We report a mean excess of star formation rate (SFR) compared to the field, of (2700 ± 700) M⊙ yr−1 from all galaxies contributing to this clustering signal within a radius of 3.5 arcmin from the SPT DSFGs. The magnitude of the Planck excess is in broad agreement with predictions of a current model of the cosmic infrared background. The model predicts that 80 per cent of the excess emission measured by Planck originates from galaxies lying in the neighbouring haloes of the lensing halo. Using Herschel maps of the same fields, we find a clear excess, relative to the field, of individual sources which contribute to the Planck excess. The mean excess SFR compared to the field is measured to be (370 ± 40) M⊙ yr−1 per resolved, clustered source. Our findings suggest that the environments around these massive z ∼ 1 lensing haloes host intense star formation out to about 2 Mpc. The flux enhancement due to clustering should also be considered when measuring flux densities of galaxies in Planck data. IF-C acknowledges the support of grant ANR-11-BS56-015. JG-N acknowledges financial support from the Spanish CSIC for a JAE-DOC fellowship, cofunded by the European Social Fund, by the Spanish Ministerio de Ciencia e Innovacion, AYA2012-39475-C02-01, and Consolider-Ingenio 2010, CSD2010-00064, projects Peer reviewed Article in Journal/Newspaper South pole Digital.CSIC (Spanish National Research Council) South Pole Monthly Notices of the Royal Astronomical Society 455 2 1629 1646 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Surveys Galaxies: formation Galaxies: statistics Diffuse radiation |
spellingShingle |
Surveys Galaxies: formation Galaxies: statistics Diffuse radiation Welikala, N. Aird, James González-Nuevo, J. Lagache, Guilaine Malkan, M. A. Montier, L. Murphy, E.J. Pointecouteau, E. Puget, J.-L. Scott, D. Weiß, A. Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
topic_facet |
Surveys Galaxies: formation Galaxies: statistics Diffuse radiation |
description |
N. Welikala et al. We probe star formation in the environments of massive (∼1013 M⊙) dark matter haloes at redshifts of z ∼ 1. This star formation is linked to a submillimetre clustering signal which we detect in maps of the Planck High Frequency Instrument that are stacked at the positions of a sample of high redshift (z > 2) strongly lensed dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope (SPT) 2500 deg2 survey. The clustering signal has submillimetre colours which are consistent with the mean redshift of the foreground lensing haloes (z ∼ 1). We report a mean excess of star formation rate (SFR) compared to the field, of (2700 ± 700) M⊙ yr−1 from all galaxies contributing to this clustering signal within a radius of 3.5 arcmin from the SPT DSFGs. The magnitude of the Planck excess is in broad agreement with predictions of a current model of the cosmic infrared background. The model predicts that 80 per cent of the excess emission measured by Planck originates from galaxies lying in the neighbouring haloes of the lensing halo. Using Herschel maps of the same fields, we find a clear excess, relative to the field, of individual sources which contribute to the Planck excess. The mean excess SFR compared to the field is measured to be (370 ± 40) M⊙ yr−1 per resolved, clustered source. Our findings suggest that the environments around these massive z ∼ 1 lensing haloes host intense star formation out to about 2 Mpc. The flux enhancement due to clustering should also be considered when measuring flux densities of galaxies in Planck data. IF-C acknowledges the support of grant ANR-11-BS56-015. JG-N acknowledges financial support from the Spanish CSIC for a JAE-DOC fellowship, cofunded by the European Social Fund, by the Spanish Ministerio de Ciencia e Innovacion, AYA2012-39475-C02-01, and Consolider-Ingenio 2010, CSD2010-00064, projects Peer reviewed |
author2 |
Agence Nationale de la Recherche (France) Consejo Superior de Investigaciones Científicas (España) European Commission Ministerio de Ciencia e Innovación (España) |
format |
Article in Journal/Newspaper |
author |
Welikala, N. Aird, James González-Nuevo, J. Lagache, Guilaine Malkan, M. A. Montier, L. Murphy, E.J. Pointecouteau, E. Puget, J.-L. Scott, D. Weiß, A. |
author_facet |
Welikala, N. Aird, James González-Nuevo, J. Lagache, Guilaine Malkan, M. A. Montier, L. Murphy, E.J. Pointecouteau, E. Puget, J.-L. Scott, D. Weiß, A. |
author_sort |
Welikala, N. |
title |
Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
title_short |
Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
title_full |
Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
title_fullStr |
Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
title_full_unstemmed |
Probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the South Pole Telescope |
title_sort |
probing star formation in the dense environments of z ∼ 1 lensing haloes aligned with dusty star-forming galaxies detected with the south pole telescope |
publisher |
Oxford University Press |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/221968 https://doi.org/10.1093/mnras/stv2302 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100003339 https://doi.org/10.13039/501100001665 https://doi.org/10.13039/501100000780 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
Publisher's version https://doi.org/10.1093/mnras/stv2302 Sí Monthly Notices of the Royal Astronomical Society: Letters 455(2): 1629–1646 (2020) http://hdl.handle.net/10261/221968 doi:10.1093/mnras/stv2302 1745-3933 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100000780 |
op_rights |
open |
op_doi |
https://doi.org/10.1093/mnras/stv230210.13039/50110000483710.13039/50110000333910.13039/50110000166510.13039/501100000780 |
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Monthly Notices of the Royal Astronomical Society |
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455 |
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2 |
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1629 |
op_container_end_page |
1646 |
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1790608232245362688 |