Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect

N. Aghanim, Y. Akrami, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, R. Battye, K. Benabed, J. P. Bernard, M. Bersanelli, P. Bielewicz, J. R. Bond, J. Borrill, F. R. Bouchet, C. Burigana, E. CalabreseJ. Carron, H. C. Chiang, B. Comis, D. Contreras, B. P. Crill, A. Curto, F. Cuttaia, P. De Bernardis, A. De Rosa, G. De Zotti, J. Delabrouille, E. Di Valentino, C. Dickinson, J. M. Diego, O. Doré, A. Ducout, X. Dupac, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, Y. Fantaye, F. Finelli, F. Forastieri, A. A. Fraisse, F. K. Hansen, J. Kim, Y. Z. Ma*, P. G. Martin, C. A. Oxborrow, L. Pagano, D. Paoletti, B. Partridge, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, S. Plaszczynski, L. Polastri, G. Polenta, J.P. Rachen, B. Racine, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, G. Roudier, B. Ruiz-Granados, M. Sandri, M. Savelainen, D. Scott, C. Sirignano, G. Sirri, L. D. Spencer, L. Stanco, R. Sunyaev, J. A. Tauber, D. Tavagnacco, M. Tenti, Luigi Toffolatti, M. Tomasi, M. Tristram, T. Trombetti, J. Valiviita, F. Van Tent, P. Vielva, F Villa, N. Vittorio, B. D. Wandelt, I. K. Wehus, A. Zacchei, A. Zonca

*Corresponding author for this work

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Abstract

Using the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic Sunyaev-Zeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and instrumental noise we derive a matched filter and then convolve it with the Planck foreground-cleaned "2D-ILC" maps. By using the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we determine the normalized rms dispersion of the temperature fluctuations at the positions of clusters, finding that this shows excess variance compared with the noise expectation. We then build an unbiased statistical estimator of the signal, determining that the normalized mean temperature dispersion of 1526 clusters is ((ΔT/T)2) = (1.64 ± 0.48) × 10-11. However, comparison with analytic calculations and simulations suggest that around 0.7 σ of this result is due to cluster lensing rather than the kSZ effect. By correcting this, the temperature dispersion is measured to be ((ΔT/T)2) = (1.35 ± 0.48) × 10-11, which gives a detection at the 2.8 σ level. We further convert uniform-weight temperature dispersion into a measurement of the line-of-sight velocity dispersion, by using estimates of the optical depth of each cluster (which introduces additional uncertainty into the estimate). We find that the velocity dispersion is (υ2) = (123 000 ± 71 000) (km s-1)2, which is consistent with findings from other large-scale structure studies, and provides direct evidence of statistical homogeneity on scales of 600 h-1 Mpc. Our study shows the promise of using cross-correlations of the kSZ effect with large-scale structure in order to constrain the growth of structure.

Original languageEnglish
Article numberA48
JournalAstronomy and Astrophysics
Volume617
Number of pages17
ISSN0004-6361
DOIs
Publication statusPublished - 2018

Keywords

  • Cosmic background radiation
  • Galaxies: clusters: general
  • Large-scale structure of Universe
  • Methods: data analysis

Cite this

Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., ... Zonca, A. (2018). Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect. Astronomy and Astrophysics, 617, [A48]. https://doi.org/10.1051/0004-6361/201731489
Aghanim, N. ; Akrami, Y. ; Ashdown, M. ; Aumont, J. ; Baccigalupi, C. ; Ballardini, M. ; Banday, A. J. ; Barreiro, R. B. ; Bartolo, N. ; Basak, S. ; Battye, R. ; Benabed, K. ; Bernard, J. P. ; Bersanelli, M. ; Bielewicz, P. ; Bond, J. R. ; Borrill, J. ; Bouchet, F. R. ; Burigana, C. ; Calabrese, E. ; Carron, J. ; Chiang, H. C. ; Comis, B. ; Contreras, D. ; Crill, B. P. ; Curto, A. ; Cuttaia, F. ; De Bernardis, P. ; De Rosa, A. ; De Zotti, G. ; Delabrouille, J. ; Di Valentino, E. ; Dickinson, C. ; Diego, J. M. ; Doré, O. ; Ducout, A. ; Dupac, X. ; Elsner, F. ; Enßlin, T. A. ; Eriksen, H. K. ; Falgarone, E. ; Fantaye, Y. ; Finelli, F. ; Forastieri, F. ; Fraisse, A. A. ; Hansen, F. K. ; Kim, J. ; Ma, Y. Z. ; Martin, P. G. ; Oxborrow, C. A. ; Pagano, L. ; Paoletti, D. ; Partridge, B. ; Perdereau, O. ; Perotto, L. ; Pettorino, V. ; Piacentini, F. ; Plaszczynski, S. ; Polastri, L. ; Polenta, G. ; Rachen, J.P. ; Racine, B. ; Reinecke, M. ; Remazeilles, M. ; Renzi, A. ; Rocha, G. ; Roudier, G. ; Ruiz-Granados, B. ; Sandri, M. ; Savelainen, M. ; Scott, D. ; Sirignano, C. ; Sirri, G. ; Spencer, L. D. ; Stanco, L. ; Sunyaev, R. ; Tauber, J. A. ; Tavagnacco, D. ; Tenti, M. ; Toffolatti, Luigi ; Tomasi, M. ; Tristram, M. ; Trombetti, T. ; Valiviita, J. ; Van Tent, F. ; Vielva, P. ; Villa, F ; Vittorio, N. ; Wandelt, B. D. ; Wehus, I. K. ; Zacchei, A. ; Zonca, A. / Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect. In: Astronomy and Astrophysics. 2018 ; Vol. 617.
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title = "Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect",
abstract = "Using the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic Sunyaev-Zeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and instrumental noise we derive a matched filter and then convolve it with the Planck foreground-cleaned {"}2D-ILC{"} maps. By using the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we determine the normalized rms dispersion of the temperature fluctuations at the positions of clusters, finding that this shows excess variance compared with the noise expectation. We then build an unbiased statistical estimator of the signal, determining that the normalized mean temperature dispersion of 1526 clusters is ((ΔT/T)2) = (1.64 ± 0.48) × 10-11. However, comparison with analytic calculations and simulations suggest that around 0.7 σ of this result is due to cluster lensing rather than the kSZ effect. By correcting this, the temperature dispersion is measured to be ((ΔT/T)2) = (1.35 ± 0.48) × 10-11, which gives a detection at the 2.8 σ level. We further convert uniform-weight temperature dispersion into a measurement of the line-of-sight velocity dispersion, by using estimates of the optical depth of each cluster (which introduces additional uncertainty into the estimate). We find that the velocity dispersion is (υ2) = (123 000 ± 71 000) (km s-1)2, which is consistent with findings from other large-scale structure studies, and provides direct evidence of statistical homogeneity on scales of 600 h-1 Mpc. Our study shows the promise of using cross-correlations of the kSZ effect with large-scale structure in order to constrain the growth of structure.",
keywords = "Cosmic background radiation, Galaxies: clusters: general, Large-scale structure of Universe, Methods: data analysis",
author = "N. Aghanim and Y. Akrami and M. Ashdown and J. Aumont and C. Baccigalupi and M. Ballardini and Banday, {A. J.} and Barreiro, {R. B.} and N. Bartolo and S. Basak and R. Battye and K. Benabed and Bernard, {J. P.} and M. Bersanelli and P. Bielewicz and Bond, {J. R.} and J. Borrill and Bouchet, {F. R.} and C. Burigana and E. Calabrese and J. Carron and Chiang, {H. C.} and B. Comis and D. Contreras and Crill, {B. P.} and A. Curto and F. Cuttaia and {De Bernardis}, P. and {De Rosa}, A. and {De Zotti}, G. and J. Delabrouille and {Di Valentino}, E. and C. Dickinson and Diego, {J. M.} and O. Dor{\'e} and A. Ducout and X. Dupac and F. Elsner and En{\ss}lin, {T. A.} and Eriksen, {H. K.} and E. Falgarone and Y. Fantaye and F. Finelli and F. Forastieri and Fraisse, {A. A.} and Hansen, {F. K.} and J. Kim and Ma, {Y. Z.} and Martin, {P. G.} and Oxborrow, {C. A.} and L. Pagano and D. Paoletti and B. Partridge and O. Perdereau and L. Perotto and V. Pettorino and F. Piacentini and S. Plaszczynski and L. Polastri and G. Polenta and J.P. Rachen and B. Racine and M. Reinecke and M. Remazeilles and A. Renzi and G. Rocha and G. Roudier and B. Ruiz-Granados and M. Sandri and M. Savelainen and D. Scott and C. Sirignano and G. Sirri and Spencer, {L. D.} and L. Stanco and R. Sunyaev and Tauber, {J. A.} and D. Tavagnacco and M. Tenti and Luigi Toffolatti and M. Tomasi and M. Tristram and T. Trombetti and J. Valiviita and {Van Tent}, F. and P. Vielva and F Villa and N. Vittorio and Wandelt, {B. D.} and Wehus, {I. K.} and A. Zacchei and A. Zonca",
year = "2018",
doi = "10.1051/0004-6361/201731489",
language = "English",
volume = "617",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",

}

Aghanim, N, Akrami, Y, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, AJ, Barreiro, RB, Bartolo, N, Basak, S, Battye, R, Benabed, K, Bernard, JP, Bersanelli, M, Bielewicz, P, Bond, JR, Borrill, J, Bouchet, FR, Burigana, C, Calabrese, E, Carron, J, Chiang, HC, Comis, B, Contreras, D, Crill, BP, Curto, A, Cuttaia, F, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Di Valentino, E, Dickinson, C, Diego, JM, Doré, O, Ducout, A, Dupac, X, Elsner, F, Enßlin, TA, Eriksen, HK, Falgarone, E, Fantaye, Y, Finelli, F, Forastieri, F, Fraisse, AA, Hansen, FK, Kim, J, Ma, YZ, Martin, PG, Oxborrow, CA, Pagano, L, Paoletti, D, Partridge, B, Perdereau, O, Perotto, L, Pettorino, V, Piacentini, F, Plaszczynski, S, Polastri, L, Polenta, G, Rachen, JP, Racine, B, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, Roudier, G, Ruiz-Granados, B, Sandri, M, Savelainen, M, Scott, D, Sirignano, C, Sirri, G, Spencer, LD, Stanco, L, Sunyaev, R, Tauber, JA, Tavagnacco, D, Tenti, M, Toffolatti, L, Tomasi, M, Tristram, M, Trombetti, T, Valiviita, J, Van Tent, F, Vielva, P, Villa, F, Vittorio, N, Wandelt, BD, Wehus, IK, Zacchei, A & Zonca, A 2018, 'Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect', Astronomy and Astrophysics, vol. 617, A48. https://doi.org/10.1051/0004-6361/201731489

Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect. / Aghanim, N.; Akrami, Y.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A. J.; Barreiro, R. B.; Bartolo, N.; Basak, S.; Battye, R.; Benabed, K.; Bernard, J. P.; Bersanelli, M.; Bielewicz, P.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Burigana, C.; Calabrese, E.; Carron, J.; Chiang, H. C.; Comis, B.; Contreras, D.; Crill, B. P.; Curto, A.; Cuttaia, F.; De Bernardis, P.; De Rosa, A.; De Zotti, G.; Delabrouille, J.; Di Valentino, E.; Dickinson, C.; Diego, J. M.; Doré, O.; Ducout, A.; Dupac, X.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Falgarone, E.; Fantaye, Y.; Finelli, F.; Forastieri, F.; Fraisse, A. A.; Hansen, F. K.; Kim, J.; Ma, Y. Z.; Martin, P. G.; Oxborrow, C. A.; Pagano, L.; Paoletti, D.; Partridge, B.; Perdereau, O.; Perotto, L.; Pettorino, V.; Piacentini, F.; Plaszczynski, S.; Polastri, L.; Polenta, G.; Rachen, J.P.; Racine, B.; Reinecke, M.; Remazeilles, M.; Renzi, A.; Rocha, G.; Roudier, G.; Ruiz-Granados, B.; Sandri, M.; Savelainen, M.; Scott, D.; Sirignano, C.; Sirri, G.; Spencer, L. D.; Stanco, L.; Sunyaev, R.; Tauber, J. A.; Tavagnacco, D.; Tenti, M.; Toffolatti, Luigi; Tomasi, M.; Tristram, M.; Trombetti, T.; Valiviita, J.; Van Tent, F.; Vielva, P.; Villa, F; Vittorio, N.; Wandelt, B. D.; Wehus, I. K.; Zacchei, A.; Zonca, A.

In: Astronomy and Astrophysics, Vol. 617, A48, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Planck intermediate results: LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect

AU - Aghanim, N.

AU - Akrami, Y.

AU - Ashdown, M.

AU - Aumont, J.

AU - Baccigalupi, C.

AU - Ballardini, M.

AU - Banday, A. J.

AU - Barreiro, R. B.

AU - Bartolo, N.

AU - Basak, S.

AU - Battye, R.

AU - Benabed, K.

AU - Bernard, J. P.

AU - Bersanelli, M.

AU - Bielewicz, P.

AU - Bond, J. R.

AU - Borrill, J.

AU - Bouchet, F. R.

AU - Burigana, C.

AU - Calabrese, E.

AU - Carron, J.

AU - Chiang, H. C.

AU - Comis, B.

AU - Contreras, D.

AU - Crill, B. P.

AU - Curto, A.

AU - Cuttaia, F.

AU - De Bernardis, P.

AU - De Rosa, A.

AU - De Zotti, G.

AU - Delabrouille, J.

AU - Di Valentino, E.

AU - Dickinson, C.

AU - Diego, J. M.

AU - Doré, O.

AU - Ducout, A.

AU - Dupac, X.

AU - Elsner, F.

AU - Enßlin, T. A.

AU - Eriksen, H. K.

AU - Falgarone, E.

AU - Fantaye, Y.

AU - Finelli, F.

AU - Forastieri, F.

AU - Fraisse, A. A.

AU - Hansen, F. K.

AU - Kim, J.

AU - Ma, Y. Z.

AU - Martin, P. G.

AU - Oxborrow, C. A.

AU - Pagano, L.

AU - Paoletti, D.

AU - Partridge, B.

AU - Perdereau, O.

AU - Perotto, L.

AU - Pettorino, V.

AU - Piacentini, F.

AU - Plaszczynski, S.

AU - Polastri, L.

AU - Polenta, G.

AU - Rachen, J.P.

AU - Racine, B.

AU - Reinecke, M.

AU - Remazeilles, M.

AU - Renzi, A.

AU - Rocha, G.

AU - Roudier, G.

AU - Ruiz-Granados, B.

AU - Sandri, M.

AU - Savelainen, M.

AU - Scott, D.

AU - Sirignano, C.

AU - Sirri, G.

AU - Spencer, L. D.

AU - Stanco, L.

AU - Sunyaev, R.

AU - Tauber, J. A.

AU - Tavagnacco, D.

AU - Tenti, M.

AU - Toffolatti, Luigi

AU - Tomasi, M.

AU - Tristram, M.

AU - Trombetti, T.

AU - Valiviita, J.

AU - Van Tent, F.

AU - Vielva, P.

AU - Villa, F

AU - Vittorio, N.

AU - Wandelt, B. D.

AU - Wehus, I. K.

AU - Zacchei, A.

AU - Zonca, A.

PY - 2018

Y1 - 2018

N2 - Using the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic Sunyaev-Zeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and instrumental noise we derive a matched filter and then convolve it with the Planck foreground-cleaned "2D-ILC" maps. By using the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we determine the normalized rms dispersion of the temperature fluctuations at the positions of clusters, finding that this shows excess variance compared with the noise expectation. We then build an unbiased statistical estimator of the signal, determining that the normalized mean temperature dispersion of 1526 clusters is ((ΔT/T)2) = (1.64 ± 0.48) × 10-11. However, comparison with analytic calculations and simulations suggest that around 0.7 σ of this result is due to cluster lensing rather than the kSZ effect. By correcting this, the temperature dispersion is measured to be ((ΔT/T)2) = (1.35 ± 0.48) × 10-11, which gives a detection at the 2.8 σ level. We further convert uniform-weight temperature dispersion into a measurement of the line-of-sight velocity dispersion, by using estimates of the optical depth of each cluster (which introduces additional uncertainty into the estimate). We find that the velocity dispersion is (υ2) = (123 000 ± 71 000) (km s-1)2, which is consistent with findings from other large-scale structure studies, and provides direct evidence of statistical homogeneity on scales of 600 h-1 Mpc. Our study shows the promise of using cross-correlations of the kSZ effect with large-scale structure in order to constrain the growth of structure.

AB - Using the Planck full-mission data, we present a detection of the temperature (and therefore velocity) dispersion due to the kinetic Sunyaev-Zeldovich (kSZ) effect from clusters of galaxies. To suppress the primary CMB and instrumental noise we derive a matched filter and then convolve it with the Planck foreground-cleaned "2D-ILC" maps. By using the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we determine the normalized rms dispersion of the temperature fluctuations at the positions of clusters, finding that this shows excess variance compared with the noise expectation. We then build an unbiased statistical estimator of the signal, determining that the normalized mean temperature dispersion of 1526 clusters is ((ΔT/T)2) = (1.64 ± 0.48) × 10-11. However, comparison with analytic calculations and simulations suggest that around 0.7 σ of this result is due to cluster lensing rather than the kSZ effect. By correcting this, the temperature dispersion is measured to be ((ΔT/T)2) = (1.35 ± 0.48) × 10-11, which gives a detection at the 2.8 σ level. We further convert uniform-weight temperature dispersion into a measurement of the line-of-sight velocity dispersion, by using estimates of the optical depth of each cluster (which introduces additional uncertainty into the estimate). We find that the velocity dispersion is (υ2) = (123 000 ± 71 000) (km s-1)2, which is consistent with findings from other large-scale structure studies, and provides direct evidence of statistical homogeneity on scales of 600 h-1 Mpc. Our study shows the promise of using cross-correlations of the kSZ effect with large-scale structure in order to constrain the growth of structure.

KW - Cosmic background radiation

KW - Galaxies: clusters: general

KW - Large-scale structure of Universe

KW - Methods: data analysis

U2 - 10.1051/0004-6361/201731489

DO - 10.1051/0004-6361/201731489

M3 - Journal article

AN - SCOPUS:85054085590

VL - 617

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A48

ER -