The ISW imprints of voids and superclusters on the CMB

S. Hotchkiss; S. Nadathur; S. Gottlöber; I. T. Iliev; A. Knebe; W. A. Watson; G. Yepes

doi:10.1017/S1743921316010619

The ISW imprints of voids and superclusters on the CMB

S. Hotchkiss^*, S. Nadathur, S. Gottlöber, I. T. Iliev, A. Knebe, W. A. Watson, G. Yepes

^*Corresponding author for this work

Institute of Cosmology & Gravitation

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

Abstract

We examine the stacked integrated Sachs-Wolfe (ISW) imprints on the CMB along the lines of sight of voids and superclusters in galaxy surveys, using the Jubilee ISW simulation and mock luminous red galaxy (LRG) catalogues. We show that the expected signal in the concordance CDM model is much smaller than the primary anisotropies arising at the last scattering surface and therefore any currently claimed detections of such an imprint cannot be caused by the ISW effect in CDM. We look for the existence of such a signal in the Planck CMB using a catalogue of voids and superclusters from the Sloan Digital Sky Survey (SDSS), but find a result completely consistent with CDM - i.e., a null detection.

Original language	English
Pages (from-to)	580-584
Number of pages	5
Journal	Proceedings of the International Astronomical Union
Volume	11
Issue number	308
DOIs	https://doi.org/10.1017/S1743921316010619
Publication status	Published - 1 Jun 2014

Keywords

cosmology: cosmic microwave background
dark energy
large-scale structure of Universe
methods: data analysis
methods: numerical

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title = "The ISW imprints of voids and superclusters on the CMB",

abstract = "We examine the stacked integrated Sachs-Wolfe (ISW) imprints on the CMB along the lines of sight of voids and superclusters in galaxy surveys, using the Jubilee ISW simulation and mock luminous red galaxy (LRG) catalogues. We show that the expected signal in the concordance CDM model is much smaller than the primary anisotropies arising at the last scattering surface and therefore any currently claimed detections of such an imprint cannot be caused by the ISW effect in CDM. We look for the existence of such a signal in the Planck CMB using a catalogue of voids and superclusters from the Sloan Digital Sky Survey (SDSS), but find a result completely consistent with CDM - i.e., a null detection.",

keywords = "cosmology: cosmic microwave background, dark energy, large-scale structure of Universe, methods: data analysis, methods: numerical",

author = "S. Hotchkiss and S. Nadathur and S. Gottl{\"o}ber and Iliev, {I. T.} and A. Knebe and Watson, {W. A.} and G. Yepes",

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doi = "10.1017/S1743921316010619",

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T1 - The ISW imprints of voids and superclusters on the CMB

AU - Hotchkiss, S.

AU - Nadathur, S.

AU - Gottlöber, S.

AU - Iliev, I. T.

AU - Knebe, A.

AU - Watson, W. A.

AU - Yepes, G.

N1 - Publisher Copyright: © International Astronomical Union 2016.

PY - 2014/6/1

Y1 - 2014/6/1

N2 - We examine the stacked integrated Sachs-Wolfe (ISW) imprints on the CMB along the lines of sight of voids and superclusters in galaxy surveys, using the Jubilee ISW simulation and mock luminous red galaxy (LRG) catalogues. We show that the expected signal in the concordance CDM model is much smaller than the primary anisotropies arising at the last scattering surface and therefore any currently claimed detections of such an imprint cannot be caused by the ISW effect in CDM. We look for the existence of such a signal in the Planck CMB using a catalogue of voids and superclusters from the Sloan Digital Sky Survey (SDSS), but find a result completely consistent with CDM - i.e., a null detection.

AB - We examine the stacked integrated Sachs-Wolfe (ISW) imprints on the CMB along the lines of sight of voids and superclusters in galaxy surveys, using the Jubilee ISW simulation and mock luminous red galaxy (LRG) catalogues. We show that the expected signal in the concordance CDM model is much smaller than the primary anisotropies arising at the last scattering surface and therefore any currently claimed detections of such an imprint cannot be caused by the ISW effect in CDM. We look for the existence of such a signal in the Planck CMB using a catalogue of voids and superclusters from the Sloan Digital Sky Survey (SDSS), but find a result completely consistent with CDM - i.e., a null detection.

KW - cosmology: cosmic microwave background

KW - dark energy

KW - large-scale structure of Universe

KW - methods: data analysis

KW - methods: numerical

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JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - 308

ER -

The ISW imprints of voids and superclusters on the CMB

Abstract

Keywords

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