Copertina

Direct Optimal Mapping Image Power Spectrum and its Window Functions

Fuente: arXiv

Salvato in:

Dettagli Bibliografici
Autori principali:	Xu, Zhilei, Kim, Honggeun, Hewitt, Jacqueline N., Chen, Kai-Feng, Kern, Nicholas S., Rath, Eleanor, Byrne, Ruby, Gorce, Adélie, Pascua, Robert, Martinot, Zachary E., Dillon, Joshua S., Hazelton, Bryna J., Liu, Adrian, Morales, Miguel F., Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P., Bernardi, Gianni, Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Bull, Philip, Burba, Jacob, Carey, Steven, Carilli, Chris L., Cheng, Carina, DeBoer, David R., Acedo, Eloy de Lera, Dexter, Matt, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kariseb, MacCalvin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Loots, Anita, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Mesinger, Andrei, Molewa, Mathakane, Mosiane, Tshegofalang, Murray, Steven G., Neben, Abraham R., Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R., Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Swarts, Hilton, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K. G., Zheng, Haoxuan
Natura:	Preprint
Pubblicazione:	2023
Soggetti:	Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
Accesso online:	Acceder al recurso
Tags:	Aggiungi Tag Nessun Tag, puoi essere il primo ad aggiungerne!!

_version_	1866914859772280832
author	Xu, Zhilei Kim, Honggeun Hewitt, Jacqueline N. Chen, Kai-Feng Kern, Nicholas S. Rath, Eleanor Byrne, Ruby Gorce, Adélie Pascua, Robert Martinot, Zachary E. Dillon, Joshua S. Hazelton, Bryna J. Liu, Adrian Morales, Miguel F. Abdurashidova, Zara Adams, Tyrone Aguirre, James E. Alexander, Paul Ali, Zaki S. Baartman, Rushelle Balfour, Yanga Beardsley, Adam P. Bernardi, Gianni Billings, Tashalee S. Bowman, Judd D. Bradley, Richard F. Bull, Philip Burba, Jacob Carey, Steven Carilli, Chris L. Cheng, Carina DeBoer, David R. Acedo, Eloy de Lera Dexter, Matt Eksteen, Nico Ely, John Ewall-Wice, Aaron Fagnoni, Nicolas Fritz, Randall Furlanetto, Steven R. Gale-Sides, Kingsley Glendenning, Brian Gorthi, Deepthi Greig, Bradley Grobbelaar, Jasper Halday, Ziyaad Hickish, Jack Jacobs, Daniel C. Julius, Austin Kariseb, MacCalvin Kerrigan, Joshua Kittiwisit, Piyanat Kohn, Saul A. Kolopanis, Matthew Lanman, Adam La Plante, Paul Loots, Anita MacMahon, David Harold Edward Malan, Lourence Malgas, Cresshim Malgas, Keith Marero, Bradley Mesinger, Andrei Molewa, Mathakane Mosiane, Tshegofalang Murray, Steven G. Neben, Abraham R. Nikolic, Bojan Nuwegeld, Hans Parsons, Aaron R. Patra, Nipanjana Pieterse, Samantha Razavi-Ghods, Nima Robnett, James Rosie, Kathryn Sims, Peter Smith, Craig Swarts, Hilton Thyagarajan, Nithyanandan van Wyngaarden, Pieter Williams, Peter K. G. Zheng, Haoxuan
author_facet	Xu, Zhilei Kim, Honggeun Hewitt, Jacqueline N. Chen, Kai-Feng Kern, Nicholas S. Rath, Eleanor Byrne, Ruby Gorce, Adélie Pascua, Robert Martinot, Zachary E. Dillon, Joshua S. Hazelton, Bryna J. Liu, Adrian Morales, Miguel F. Abdurashidova, Zara Adams, Tyrone Aguirre, James E. Alexander, Paul Ali, Zaki S. Baartman, Rushelle Balfour, Yanga Beardsley, Adam P. Bernardi, Gianni Billings, Tashalee S. Bowman, Judd D. Bradley, Richard F. Bull, Philip Burba, Jacob Carey, Steven Carilli, Chris L. Cheng, Carina DeBoer, David R. Acedo, Eloy de Lera Dexter, Matt Eksteen, Nico Ely, John Ewall-Wice, Aaron Fagnoni, Nicolas Fritz, Randall Furlanetto, Steven R. Gale-Sides, Kingsley Glendenning, Brian Gorthi, Deepthi Greig, Bradley Grobbelaar, Jasper Halday, Ziyaad Hickish, Jack Jacobs, Daniel C. Julius, Austin Kariseb, MacCalvin Kerrigan, Joshua Kittiwisit, Piyanat Kohn, Saul A. Kolopanis, Matthew Lanman, Adam La Plante, Paul Loots, Anita MacMahon, David Harold Edward Malan, Lourence Malgas, Cresshim Malgas, Keith Marero, Bradley Mesinger, Andrei Molewa, Mathakane Mosiane, Tshegofalang Murray, Steven G. Neben, Abraham R. Nikolic, Bojan Nuwegeld, Hans Parsons, Aaron R. Patra, Nipanjana Pieterse, Samantha Razavi-Ghods, Nima Robnett, James Rosie, Kathryn Sims, Peter Smith, Craig Swarts, Hilton Thyagarajan, Nithyanandan van Wyngaarden, Pieter Williams, Peter K. G. Zheng, Haoxuan
contents	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.
format	Preprint
id	arxiv_https___arxiv_org_abs_2311_10711
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	Direct Optimal Mapping Image Power Spectrum and its Window Functions Xu, Zhilei Kim, Honggeun Hewitt, Jacqueline N. Chen, Kai-Feng Kern, Nicholas S. Rath, Eleanor Byrne, Ruby Gorce, Adélie Pascua, Robert Martinot, Zachary E. Dillon, Joshua S. Hazelton, Bryna J. Liu, Adrian Morales, Miguel F. Abdurashidova, Zara Adams, Tyrone Aguirre, James E. Alexander, Paul Ali, Zaki S. Baartman, Rushelle Balfour, Yanga Beardsley, Adam P. Bernardi, Gianni Billings, Tashalee S. Bowman, Judd D. Bradley, Richard F. Bull, Philip Burba, Jacob Carey, Steven Carilli, Chris L. Cheng, Carina DeBoer, David R. Acedo, Eloy de Lera Dexter, Matt Eksteen, Nico Ely, John Ewall-Wice, Aaron Fagnoni, Nicolas Fritz, Randall Furlanetto, Steven R. Gale-Sides, Kingsley Glendenning, Brian Gorthi, Deepthi Greig, Bradley Grobbelaar, Jasper Halday, Ziyaad Hickish, Jack Jacobs, Daniel C. Julius, Austin Kariseb, MacCalvin Kerrigan, Joshua Kittiwisit, Piyanat Kohn, Saul A. Kolopanis, Matthew Lanman, Adam La Plante, Paul Loots, Anita MacMahon, David Harold Edward Malan, Lourence Malgas, Cresshim Malgas, Keith Marero, Bradley Mesinger, Andrei Molewa, Mathakane Mosiane, Tshegofalang Murray, Steven G. Neben, Abraham R. Nikolic, Bojan Nuwegeld, Hans Parsons, Aaron R. Patra, Nipanjana Pieterse, Samantha Razavi-Ghods, Nima Robnett, James Rosie, Kathryn Sims, Peter Smith, Craig Swarts, Hilton Thyagarajan, Nithyanandan van Wyngaarden, Pieter Williams, Peter K. G. Zheng, Haoxuan Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics 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.
title	Direct Optimal Mapping Image Power Spectrum and its Window Functions
topic	Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2311.10711