Direct Optimal Mapping Image Power Spectrum and its Window Functions

Zhilei Xu; Honggeun Kim; Jacqueline N. Hewitt; Kai Feng Chen; Nicholas S. Kern; Eleanor Rath; Ruby Byrne; Adelie Gorce; Robert Pascua; Zachary E. Martinot; Joshua S. Dillon; Bryna J. Hazelton; Adrian Liu; Miguel F. Morales; Zara Abdurashidova; Tyrone Adams; James E. Aguirre; Paul Alexander; Zaki S. Ali; Rushelle Baartman; Yanga Balfour; Adam P. Beardsley; Gianni Bernardi; Tashalee S. Billings; Judd D. Bowman; Richard F. Bradley; Philip Bull; Jacob Burba; Steven Carey; Chris L. Carilli; Carina Cheng; David R. DeBoer; Eloy de Lera Acedo; Matt Dexter; Nico Eksteen; John Ely; Aaron Ewall-Wice; Nicolas Fagnoni; Randall Fritz; Steven R. Furlanetto; Kingsley Gale-Sides; Brian Glendenning; Deepthi Gorthi; Bradley Greig; Jasper Grobbelaar; Ziyaad Halday; Jack Hickish; Daniel C. Jacobs; Austin Julius; MacCalvin Kariseb; Joshua Kerrigan; Piyanat Kittiwisit; Saul A. Kohn; Matthew Kolopanis; Adam Lanman; Paul La Plante; Anita Loots; David Harold Edward MacMahon; Lourence Malan; Cresshim Malgas; Keith Malgas; Bradley Marero; Andrei Mesinger; Mathakane Molewa; Tshegofalang Mosiane; Steven G. Murray; Abraham R. Neben; Bojan Nikolic; Hans Nuwegeld; Aaron R. Parsons; Nipanjana Patra; Samantha Pieterse; Nima Razavi-Ghods; James Robnett; Kathryn Rosie; Peter Sims; Craig Smith; Hilton Swarts; Jianrong Tan; Nithyanandan Thyagarajan; Pieter van Wyngaarden; Peter K.G. Williams; Haoxuan Zheng

doi:10.3847/1538-4357/ad528c

Direct Optimal Mapping Image Power Spectrum and its Window Functions

Zhilei Xu, Honggeun Kim, Jacqueline N. Hewitt, Kai Feng Chen, Nicholas S. Kern, Eleanor Rath, Ruby Byrne, Adelie Gorce, Robert Pascua, Zachary E. Martinot, Joshua S. Dillon, Bryna J. Hazelton, Adrian Liu, Miguel F. Morales, Zara Abdurashidova, Tyrone Adams, James E. Aguirre, Paul Alexander, Zaki S. Ali, Rushelle BaartmanYanga Balfour, Adam P. Beardsley, Gianni Bernardi, Tashalee S. Billings, Judd D. Bowman, Richard F. Bradley, Philip Bull, Jacob Burba, Steven Carey, Chris L. Carilli, Carina Cheng, David R. DeBoer, Eloy de Lera Acedo, Matt Dexter, Nico Eksteen, John Ely, Aaron Ewall-Wice, Nicolas Fagnoni, Randall Fritz, Steven R. Furlanetto, Kingsley Gale-Sides, Brian Glendenning, Deepthi Gorthi, Bradley Greig, Jasper Grobbelaar, Ziyaad Halday, Jack Hickish, Daniel C. Jacobs, Austin Julius, MacCalvin Kariseb, Joshua Kerrigan, Piyanat Kittiwisit, Saul A. Kohn, Matthew Kolopanis, Adam Lanman, Paul La Plante, Anita Loots, David Harold Edward MacMahon, Lourence Malan, Cresshim Malgas, Keith Malgas, Bradley Marero, Andrei Mesinger, Mathakane Molewa, Tshegofalang Mosiane, Steven G. Murray, Abraham R. Neben, Bojan Nikolic, Hans Nuwegeld, Aaron R. Parsons, Nipanjana Patra, Samantha Pieterse, Nima Razavi-Ghods, James Robnett, Kathryn Rosie, Peter Sims, Craig Smith, Hilton Swarts, Jianrong Tan, Nithyanandan Thyagarajan, Pieter van Wyngaarden, Peter K.G. Williams, Haoxuan Zheng

Earth and Space Exploration, School of (SESE)

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

Abstract

The key to detecting neutral hydrogen during the epoch of reionization (EoR) is to separate the cosmological signal from the dominating foreground radiation. We developed direct optimal mapping (DOM) to map interferometric visibilities; it contains only linear operations, with full knowledge of point spread functions from visibilities to images. Here, we demonstrate a fast Fourier transform-based image power spectrum and its window functions computed from the DOM images. We use noiseless simulation, based on the Hydrogen Epoch of Reionization Array Phase I configuration, to study the image power spectrum properties. The window functions show <10⁻¹¹ of the integrated power leaks from the foreground-dominated region into the EoR window; the 2D and 1D power spectra also verify the separation between the foregrounds and the EoR.

Original language	English (US)
Article number	16
Journal	Astrophysical Journal
Volume	971
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/ad528c
State	Published - Aug 1 2024

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Xu, Z., Kim, H., Hewitt, J. N., Chen, K. F., Kern, N. S., Rath, E., Byrne, R., Gorce, A., Pascua, R., Martinot, Z. E., Dillon, J. S., Hazelton, B. J., Liu, A., Morales, M. F., Abdurashidova, Z., Adams, T., Aguirre, J. E., Alexander, P., Ali, Z. S., ... Zheng, H. (2024). Direct Optimal Mapping Image Power Spectrum and its Window Functions. Astrophysical Journal, 971(1), Article 16. https://doi.org/10.3847/1538-4357/ad528c

Xu, Z, Kim, H, Hewitt, JN, Chen, KF, Kern, NS, Rath, E, Byrne, R, Gorce, A, Pascua, R, Martinot, ZE, Dillon, JS, Hazelton, BJ, Liu, A, Morales, MF, Abdurashidova, Z, Adams, T, Aguirre, JE, Alexander, P, Ali, ZS, Baartman, R, Balfour, Y, Beardsley, AP, Bernardi, G, Billings, TS, Bowman, JD, Bradley, RF, Bull, P, Burba, J, Carey, S, Carilli, CL, Cheng, C, DeBoer, DR, Acedo, EDL, Dexter, M, Eksteen, N, Ely, J, Ewall-Wice, A, Fagnoni, N, Fritz, R, Furlanetto, SR, Gale-Sides, K, Glendenning, B, Gorthi, D, Greig, B, Grobbelaar, J, Halday, Z, Hickish, J, Jacobs, DC, Julius, A, Kariseb, M, Kerrigan, J, Kittiwisit, P, Kohn, SA, Kolopanis, M, Lanman, A, La Plante, P, Loots, A, MacMahon, DHE, Malan, L, Malgas, C, Malgas, K, Marero, B, Mesinger, A, Molewa, M, Mosiane, T, Murray, SG, Neben, AR, Nikolic, B, Nuwegeld, H, Parsons, AR, Patra, N, Pieterse, S, Razavi-Ghods, N, Robnett, J, Rosie, K, Sims, P, Smith, C, Swarts, H, Tan, J, Thyagarajan, N, van Wyngaarden, P, Williams, PKG & Zheng, H 2024, 'Direct Optimal Mapping Image Power Spectrum and its Window Functions', Astrophysical Journal, vol. 971, no. 1, 16. https://doi.org/10.3847/1538-4357/ad528c

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title = "Direct Optimal Mapping Image Power Spectrum and its Window Functions",

abstract = "The key to detecting neutral hydrogen during the epoch of reionization (EoR) is to separate the cosmological signal from the dominating foreground radiation. We developed direct optimal mapping (DOM) to map interferometric visibilities; it contains only linear operations, with full knowledge of point spread functions from visibilities to images. Here, we demonstrate a fast Fourier transform-based image power spectrum and its window functions computed from the DOM images. We use noiseless simulation, based on the Hydrogen Epoch of Reionization Array Phase I configuration, to study the image power spectrum properties. The window functions show <10−11 of the integrated power leaks from the foreground-dominated region into the EoR window; the 2D and 1D power spectra also verify the separation between the foregrounds and the EoR.",

author = "Zhilei Xu and Honggeun Kim and Hewitt, {Jacqueline N.} and Chen, {Kai Feng} and Kern, {Nicholas S.} and Eleanor Rath and Ruby Byrne and Adelie Gorce and Robert Pascua and Martinot, {Zachary E.} and Dillon, {Joshua S.} and Hazelton, {Bryna J.} and Adrian Liu and Morales, {Miguel F.} and Zara Abdurashidova and Tyrone Adams and Aguirre, {James E.} and Paul Alexander and Ali, {Zaki S.} and Rushelle Baartman and Yanga Balfour and Beardsley, {Adam P.} and Gianni Bernardi and Billings, {Tashalee S.} and Bowman, {Judd D.} and Bradley, {Richard F.} and Philip Bull and Jacob Burba and Steven Carey and Carilli, {Chris L.} and Carina Cheng and DeBoer, {David R.} and Acedo, {Eloy de Lera} and Matt Dexter and Nico Eksteen and John Ely and Aaron Ewall-Wice and Nicolas Fagnoni and Randall Fritz and Furlanetto, {Steven R.} and Kingsley Gale-Sides and Brian Glendenning and Deepthi Gorthi and Bradley Greig and Jasper Grobbelaar and Ziyaad Halday and Jack Hickish and Jacobs, {Daniel C.} and Austin Julius and MacCalvin Kariseb and Joshua Kerrigan and Piyanat Kittiwisit and Kohn, {Saul A.} and Matthew Kolopanis and Adam Lanman and {La Plante}, Paul and Anita Loots and MacMahon, {David Harold Edward} and Lourence Malan and Cresshim Malgas and Keith Malgas and Bradley Marero and Andrei Mesinger and Mathakane Molewa and Tshegofalang Mosiane and Murray, {Steven G.} and Neben, {Abraham R.} and Bojan Nikolic and Hans Nuwegeld and Parsons, {Aaron R.} and Nipanjana Patra and Samantha Pieterse and Nima Razavi-Ghods and James Robnett and Kathryn Rosie and Peter Sims and Craig Smith and Hilton Swarts and Jianrong Tan and Nithyanandan Thyagarajan and {van Wyngaarden}, Pieter and Williams, {Peter K.G.} and Haoxuan Zheng",

note = "Publisher Copyright: {\textcopyright} 2024. The Author(s). Published by the American Astronomical Society.",

year = "2024",

month = aug,

day = "1",

doi = "10.3847/1538-4357/ad528c",

language = "English (US)",

volume = "971",

journal = "Astrophysical Journal",

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TY - JOUR

T1 - Direct Optimal Mapping Image Power Spectrum and its Window Functions

AU - Xu, Zhilei

AU - Kim, Honggeun

AU - Hewitt, Jacqueline N.

AU - Chen, Kai Feng

AU - Kern, Nicholas S.

AU - Rath, Eleanor

AU - Byrne, Ruby

AU - Gorce, Adelie

AU - Pascua, Robert

AU - Martinot, Zachary E.

AU - Dillon, Joshua S.

AU - Hazelton, Bryna J.

AU - Liu, Adrian

AU - Morales, Miguel F.

AU - Abdurashidova, Zara

AU - Adams, Tyrone

AU - Aguirre, James E.

AU - Alexander, Paul

AU - Ali, Zaki S.

AU - Baartman, Rushelle

AU - Balfour, Yanga

AU - Beardsley, Adam P.

AU - Bernardi, Gianni

AU - Billings, Tashalee S.

AU - Bowman, Judd D.

AU - Bradley, Richard F.

AU - Bull, Philip

AU - Burba, Jacob

AU - Carey, Steven

AU - Carilli, Chris L.

AU - Cheng, Carina

AU - DeBoer, David R.

AU - Acedo, Eloy de Lera

AU - Dexter, Matt

AU - Eksteen, Nico

AU - Ely, John

AU - Ewall-Wice, Aaron

AU - Fagnoni, Nicolas

AU - Fritz, Randall

AU - Furlanetto, Steven R.

AU - Gale-Sides, Kingsley

AU - Glendenning, Brian

AU - Gorthi, Deepthi

AU - Greig, Bradley

AU - Grobbelaar, Jasper

AU - Halday, Ziyaad

AU - Hickish, Jack

AU - Jacobs, Daniel C.

AU - Julius, Austin

AU - Kariseb, MacCalvin

AU - Kerrigan, Joshua

AU - Kittiwisit, Piyanat

AU - Kohn, Saul A.

AU - Kolopanis, Matthew

AU - Lanman, Adam

AU - La Plante, Paul

AU - Loots, Anita

AU - MacMahon, David Harold Edward

AU - Malan, Lourence

AU - Malgas, Cresshim

AU - Malgas, Keith

AU - Marero, Bradley

AU - Mesinger, Andrei

AU - Molewa, Mathakane

AU - Mosiane, Tshegofalang

AU - Murray, Steven G.

AU - Neben, Abraham R.

AU - Nikolic, Bojan

AU - Nuwegeld, Hans

AU - Parsons, Aaron R.

AU - Patra, Nipanjana

AU - Pieterse, Samantha

AU - Razavi-Ghods, Nima

AU - Robnett, James

AU - Rosie, Kathryn

AU - Sims, Peter

AU - Smith, Craig

AU - Swarts, Hilton

AU - Tan, Jianrong

AU - Thyagarajan, Nithyanandan

AU - van Wyngaarden, Pieter

AU - Williams, Peter K.G.

AU - Zheng, Haoxuan

PY - 2024/8/1

Y1 - 2024/8/1

N2 - The key to detecting neutral hydrogen during the epoch of reionization (EoR) is to separate the cosmological signal from the dominating foreground radiation. We developed direct optimal mapping (DOM) to map interferometric visibilities; it contains only linear operations, with full knowledge of point spread functions from visibilities to images. Here, we demonstrate a fast Fourier transform-based image power spectrum and its window functions computed from the DOM images. We use noiseless simulation, based on the Hydrogen Epoch of Reionization Array Phase I configuration, to study the image power spectrum properties. The window functions show <10−11 of the integrated power leaks from the foreground-dominated region into the EoR window; the 2D and 1D power spectra also verify the separation between the foregrounds and the EoR.

AB - The key to detecting neutral hydrogen during the epoch of reionization (EoR) is to separate the cosmological signal from the dominating foreground radiation. We developed direct optimal mapping (DOM) to map interferometric visibilities; it contains only linear operations, with full knowledge of point spread functions from visibilities to images. Here, we demonstrate a fast Fourier transform-based image power spectrum and its window functions computed from the DOM images. We use noiseless simulation, based on the Hydrogen Epoch of Reionization Array Phase I configuration, to study the image power spectrum properties. The window functions show <10−11 of the integrated power leaks from the foreground-dominated region into the EoR window; the 2D and 1D power spectra also verify the separation between the foregrounds and the EoR.

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UR - http://www.scopus.com/inward/citedby.url?scp=85200629335&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ad528c

DO - 10.3847/1538-4357/ad528c

M3 - Article

AN - SCOPUS:85200629335

SN - 0004-637X

VL - 971

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 16

ER -

Direct Optimal Mapping Image Power Spectrum and its Window Functions

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