Understanding the diversity of 21 cm cosmology analyses
Understanding the diversity of 21 cm cosmology analyses
复制标题
了解 21 厘米宇宙学分析的多样性
DOI：
10.1093/mnras/sty2844
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发表时间：
2018
影响因子：
4.8
通讯作者：
Sullivan, Ian
中科院分区：
文献类型：
--
作者：
Morales, Miguel F;Beardsley, Adam;Pober, Jonathan;Barry, Nichole;Hazelton, Bryna;Jacobs, Daniel;Sullivan, Ian
21厘米功率谱观测有可能彻底改变我们对再电离和暗能量时代的理解，但需要非常精确的数据分析方法来将宇宙学信号与天体物理和仪器污染物分开。这种分析挑战导致了各种各样的分析，包括延迟谱，成像功率谱，m模式分析，以及许多其他。这种方法的多样性是一种优势，但也导致了社区内部的困惑，即一个团队收集的见解是否适用于在不同分析框架中工作的团队。在本文中，我们表明，所有现有的分析建议可以分为两个不同的家庭，根据他们是否估计的功率谱的测量或reconstructedsky。所提出的统计问题的这种微妙差异在很大程度上决定了分析对前景发射和校准误差的敏感性，并最终决定了不同分析可以追求的科学。在本文中，我们详细介绍了这两个分析家庭的起源，分类正在积极开发的分析，并探讨其相对灵敏度的前景污染和校准误差。
21 cm power spectrum observations have the potential to revolutionize our understanding of the epoch of reionization and dark energy, but require extraordinarily precise data analysis methods to separate the cosmological signal from the astrophysical and instrumental contaminants. This analysis challenge has led to a diversity of proposed analyses, including delay spectra, imaging power spectra, m-mode analysis, and numerous others. This diversity of approach is a strength, but has also led to a confusion within the community about whether insights gleaned by one group are applicable to teams working in different analysis frameworks. In this paper, we show that all existing analysis proposals can be classified into two distinct families based on whether they estimate the power spectrum of themeasuredorreconstructedsky. This subtle difference in the statistical question posed largely determines the susceptibility of the analyses to foreground emission and calibration errors, and ultimately the science different analyses can pursue. In this paper, we detail the origin of the two analysis families, categorize the analyses being actively developed, and explore their relative sensitivities to foreground contamination and calibration errors.
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DOI：
10.3847/0004-637x/818/2/139
发表时间：
2016-01
期刊：
The Astrophysical Journal
影响因子：
--
作者：
C. Trott;B. Pindor;P. Procopio;R. Wayth;D. Mitchell;B. McKinley;S. Tingay;N. Barry;A. Beardsley;G. Bernardi;J. Bowman;F. Briggs;R. Cappallo;P. Carroll;A. D. Oliveira-Costa;J. Dillon;A. Ewall-Wice;L. Feng;L. Greenhill;B. Hazelton;J. Hewitt;N. Hurley-Walker;M. Johnston-Hollitt;D. Jacobs;D. Kaplan;Hs. Kim;E. Lenc;J. Line;A. Loeb;C. Lonsdale;M. Morales;E. Morgan;A. Neben;N. Thyagarajan;D. Oberoi;A. Offringa;S. Ord;S. Paul;J. Pober;T. Prabu;J. Riding;N. Shankar;S. Sethi;K. Srivani;R. Subrahmanyan;I. Sullivan;Max Tegmark;R. Webster;A. Williams;C. Williams;C. Wu;J. Wyithe
通讯作者：
C. Trott;B. Pindor;P. Procopio;R. Wayth;D. Mitchell;B. McKinley;S. Tingay;N. Barry;A. Beardsley;G. Bernardi;J. Bowman;F. Briggs;R. Cappallo;P. Carroll;A. D. Oliveira-Costa;J. Dillon;A. Ewall-Wice;L. Feng;L. Greenhill;B. Hazelton;J. Hewitt;N. Hurley-Walker;M. Johnston-Hollitt;D. Jacobs;D. Kaplan;Hs. Kim;E. Lenc;J. Line;A. Loeb;C. Lonsdale;M. Morales;E. Morgan;A. Neben;N. Thyagarajan;D. Oberoi;A. Offringa;S. Ord;S. Paul;J. Pober;T. Prabu;J. Riding;N. Shankar;S. Sethi;K. Srivani;R. Subrahmanyan;I. Sullivan;Max Tegmark;R. Webster;A. Williams;C. Williams;C. Wu;J. Wyithe
126 和 164 MHz 下再电离测量 PAPER Epoch 的偏振泄漏限制
DOI：
10.3847/1538-4357/836/2/154
发表时间：
2017
期刊：
The Astrophysical Journal
影响因子：
--
作者：
Moore, David F.;Aguirre, James E.;Kohn, Saul A.;Parsons, Aaron R.;Ali, Zaki S.;Bradley, Richard F.;Carilli, Chris L.;DeBoer, David R.;Dexter, Matthew R.;Gugliucci, Nicole E.
通讯作者：
Gugliucci, Nicole E.
影响因子：
4.8
作者：
A. Beardsley;N. Thyagarajan;J. Bowman;M. Morales
通讯作者：
A. Beardsley;N. Thyagarajan;J. Bowman;M. Morales
DOI：
10.3847/0004-637x/826/2/199
发表时间：
2016-02
期刊：
The Astrophysical Journal
影响因子：
--
作者：
A. Neben;R. Bradley;J. Hewitt;D. DeBoer;A. Parsons;J. Aguirre;Z. Ali;Carina Cheng;A. Ewall-Wice;Nipanjana Patra;N. Thyagarajan;J. Bowman;R. Dickenson;J. Dillon;P. Doolittle;D. Egan;Mike Hedrick;D. Jacobs;S. Kohn;P. Klima;K. Moodley;B. Saliwanchik;Patrick Schaffner;J. Shelton;H. Taylor;R. Taylor;Max Tegmark;B. Wirt;Haoxuan Zheng
通讯作者：
A. Neben;R. Bradley;J. Hewitt;D. DeBoer;A. Parsons;J. Aguirre;Z. Ali;Carina Cheng;A. Ewall-Wice;Nipanjana Patra;N. Thyagarajan;J. Bowman;R. Dickenson;J. Dillon;P. Doolittle;D. Egan;Mike Hedrick;D. Jacobs;S. Kohn;P. Klima;K. Moodley;B. Saliwanchik;Patrick Schaffner;J. Shelton;H. Taylor;R. Taylor;Max Tegmark;B. Wirt;Haoxuan Zheng
DOI：
10.1111/j.1365-2966.2006.10919.x
发表时间：
2006-03
影响因子：
4.8
作者：
G. Mellema;I. Iliev;U. Pen;P. R. S. Astron;S. Leiden;Cita;D. Astronomy;U. Austin
通讯作者：
G. Mellema;I. Iliev;U. Pen;P. R. S. Astron;S. Leiden;Cita;D. Astronomy;U. Austin