Publication

A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect

Jelić, V., Zaroubi, S., Aghanim, N., Douspis, M., Koopmans, L. V. E., Langer, M., Mellema, G., Tashiro, H. & Thomas, R. M., Mar-2010, In : Monthly Notices of the Royal Astronomical Society. 402, 4, p. 2279-2290 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Jelić, V., Zaroubi, S., Aghanim, N., Douspis, M., Koopmans, L. V. E., Langer, M., Mellema, G., Tashiro, H., & Thomas, R. M. (2010). A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect. Monthly Notices of the Royal Astronomical Society, 402(4), 2279-2290. https://doi.org/10.1111/j.1365-2966.2009.16086.x

Author

Jelić, Vibor ; Zaroubi, Saleem ; Aghanim, Nabila ; Douspis, Marian ; Koopmans, Léon V. E. ; Langer, Mathieu ; Mellema, Garrelt ; Tashiro, Hiroyuki ; Thomas, Rajat M. / A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect. In: Monthly Notices of the Royal Astronomical Society. 2010 ; Vol. 402, No. 4. pp. 2279-2290.

Harvard

Jelić, V, Zaroubi, S, Aghanim, N, Douspis, M, Koopmans, LVE, Langer, M, Mellema, G, Tashiro, H & Thomas, RM 2010, 'A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect', Monthly Notices of the Royal Astronomical Society, vol. 402, no. 4, pp. 2279-2290. https://doi.org/10.1111/j.1365-2966.2009.16086.x

Standard

A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect. / Jelić, Vibor; Zaroubi, Saleem; Aghanim, Nabila; Douspis, Marian; Koopmans, Léon V. E.; Langer, Mathieu; Mellema, Garrelt; Tashiro, Hiroyuki; Thomas, Rajat M.

In: Monthly Notices of the Royal Astronomical Society, Vol. 402, No. 4, 03.2010, p. 2279-2290.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Jelić V, Zaroubi S, Aghanim N, Douspis M, Koopmans LVE, Langer M et al. A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect. Monthly Notices of the Royal Astronomical Society. 2010 Mar;402(4):2279-2290. https://doi.org/10.1111/j.1365-2966.2009.16086.x


BibTeX

@article{64018baae7d34f608542f59b459b3235,
title = "A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect",
abstract = "The Universe's Epoch of Reionization can be studied using a number of observational probes that provide complementary or corroborating information. Each of these probes suffers from its own systematic and statistical uncertainties. It is therefore useful to consider the mutual information that these data sets contain. In this paper, we present a cross-correlation study between the kinetic Sunyaev-Zel'dovich effect - produced by the scattering of cosmic microwave background (CMB) photons off free electrons produced during the reionization process - and the cosmological 21 cm signal - which reflects the neutral hydrogen content of the Universe, as a function of redshift. The study is carried out using a simulated reionization history in 100 h(-1) Mpc scale N-body simulations with radiative transfer. In essence, we find that the two probes anticorrelate. The significance of the anticorrelation signal depends on the extent of the reionization process, wherein extended histories result in a much stronger signal compared to instantaneous cases. Unfortunately, however, once the primary CMB fluctuations are included into our simulation they serve as a source of large correlated noise that renders the cross-correlation signal insignificant, regardless of the reionization scenario.",
keywords = "cosmic microwave background, cosmology: theory, diffuse radiation, large-scale structure of Universe, radio lines: general, MICROWAVE BACKGROUND ANISOTROPIES, SMALL-SCALE FLUCTUATIONS, PROBE WMAP OBSERVATIONS, CENTIMETER TOMOGRAPHY, REIONIZATION HISTORY, INTERGALACTIC MEDIUM, COSMIC REIONIZATION, PATCHY REIONIZATION, NEUTRAL HYDROGEN, EPOCH",
author = "Vibor Jeli{\'c} and Saleem Zaroubi and Nabila Aghanim and Marian Douspis and Koopmans, {L{\'e}on V. E.} and Mathieu Langer and Garrelt Mellema and Hiroyuki Tashiro and Thomas, {Rajat M.}",
note = "M1 - Journal Article",
year = "2010",
month = mar,
doi = "10.1111/j.1365-2966.2009.16086.x",
language = "English",
volume = "402",
pages = "2279--2290",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - A cross-correlation study between the cosmological 21 cm signal and the kinetic Sunyaev-Zel'dovich effect

AU - Jelić, Vibor

AU - Zaroubi, Saleem

AU - Aghanim, Nabila

AU - Douspis, Marian

AU - Koopmans, Léon V. E.

AU - Langer, Mathieu

AU - Mellema, Garrelt

AU - Tashiro, Hiroyuki

AU - Thomas, Rajat M.

N1 - M1 - Journal Article

PY - 2010/3

Y1 - 2010/3

N2 - The Universe's Epoch of Reionization can be studied using a number of observational probes that provide complementary or corroborating information. Each of these probes suffers from its own systematic and statistical uncertainties. It is therefore useful to consider the mutual information that these data sets contain. In this paper, we present a cross-correlation study between the kinetic Sunyaev-Zel'dovich effect - produced by the scattering of cosmic microwave background (CMB) photons off free electrons produced during the reionization process - and the cosmological 21 cm signal - which reflects the neutral hydrogen content of the Universe, as a function of redshift. The study is carried out using a simulated reionization history in 100 h(-1) Mpc scale N-body simulations with radiative transfer. In essence, we find that the two probes anticorrelate. The significance of the anticorrelation signal depends on the extent of the reionization process, wherein extended histories result in a much stronger signal compared to instantaneous cases. Unfortunately, however, once the primary CMB fluctuations are included into our simulation they serve as a source of large correlated noise that renders the cross-correlation signal insignificant, regardless of the reionization scenario.

AB - The Universe's Epoch of Reionization can be studied using a number of observational probes that provide complementary or corroborating information. Each of these probes suffers from its own systematic and statistical uncertainties. It is therefore useful to consider the mutual information that these data sets contain. In this paper, we present a cross-correlation study between the kinetic Sunyaev-Zel'dovich effect - produced by the scattering of cosmic microwave background (CMB) photons off free electrons produced during the reionization process - and the cosmological 21 cm signal - which reflects the neutral hydrogen content of the Universe, as a function of redshift. The study is carried out using a simulated reionization history in 100 h(-1) Mpc scale N-body simulations with radiative transfer. In essence, we find that the two probes anticorrelate. The significance of the anticorrelation signal depends on the extent of the reionization process, wherein extended histories result in a much stronger signal compared to instantaneous cases. Unfortunately, however, once the primary CMB fluctuations are included into our simulation they serve as a source of large correlated noise that renders the cross-correlation signal insignificant, regardless of the reionization scenario.

KW - cosmic microwave background

KW - cosmology: theory

KW - diffuse radiation

KW - large-scale structure of Universe

KW - radio lines: general

KW - MICROWAVE BACKGROUND ANISOTROPIES

KW - SMALL-SCALE FLUCTUATIONS

KW - PROBE WMAP OBSERVATIONS

KW - CENTIMETER TOMOGRAPHY

KW - REIONIZATION HISTORY

KW - INTERGALACTIC MEDIUM

KW - COSMIC REIONIZATION

KW - PATCHY REIONIZATION

KW - NEUTRAL HYDROGEN

KW - EPOCH

U2 - 10.1111/j.1365-2966.2009.16086.x

DO - 10.1111/j.1365-2966.2009.16086.x

M3 - Article

VL - 402

SP - 2279

EP - 2290

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -

ID: 5036471