NAOC Open IR
A new MWA limit on the 21 cm power spectrum at redshifts similar to 13-17
Yoshiura, S.1,2,3,4; Pindor, B.1,4; Line, J. L. B.4,5; Barry, N.1,4; Trott, C. M.4,5; Beardsley, A.6; Bowman, J.7; Byrne, R.8; Chokshi, A.1,4; Hazelton, B. J.8,9; Hasegawa, K.10; Howard, E.11,12; Greig, B.1,4; Jacobs, D.7; Jordan, C. H.4,5; Joseph, R.4,5; Kolopanis, M.7; Lynch, C.4,5; McKinley, B.4,5; Mitchell, D. A.4,11; Morales, M. F.8; Murray, S. G.7; Pober, J. C.13; Rahimi, M.1,4; Takahashi, K.2,14,15; Tingay, S. J.4,5; Wayth, R. B.4,5; Webster, R. L.1,4; Wilensky, M.8; Wyithe, J. S. B.1,4; Zhang, Z.13; Zheng, Q.16
2021-08-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume505Issue:4Pages:4775-4790
AbstractObservations in the lowest Murchison Widefield Array (MWA) band between 75 and 100 MHz have the potential to constrain the distribution of neutral hydrogen in the intergalactic medium at redshift similar to 13-17. Using 15 h of MWA data, we analyse systematics in this band such as radio-frequency interference (RFI), ionospheric and wide field effects. By updating the position of point sources, we mitigate the direction-independent calibration error due to ionospheric offsets. Our calibration strategy is optimized for the lowest frequency bands by reducing the number of direction-dependent calibrators and taking into account radio sources within a wider field of view. We remove data polluted by systematics based on the RFI occupancy and ionospheric conditions, finally selecting 5.5 h of the cleanest data. Using these data, we obtain 2 sigma upper limits on the 21 cm power spectrum in the range of 0.1 h Mpc(-1) (sic) k (sic) 1 h Mpc(-1) and at z = 14.2, 15.2, and 16.5, with the lowest limit being 6.3 x 10(6) mK(2) at k = 0.14 h Mpc(-1) and at z = 15.2 with a possibility of a few per cent of signal loss due to direction-independent calibration.
Keywordmethods: data analysis dark ages, reionization, first stars
Funding OrganizationAustralian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology
DOI10.1093/mnras/stab1560
WOS KeywordMURCHISON WIDEFIELD ARRAY ; COSMIC DAWN ; FUNDAMENTAL LIMITATIONS ; NEUTRAL HYDROGEN ; LIGHT-CONE ; EPOCH ; REIONIZATION ; CALIBRATION ; SIGNAL ; LOFAR
Language英语
Funding ProjectAustralian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)[CE170100013] ; JSPS Overseas Research Fellowships ; JSPS KAKENHI[16H05999] ; JSPS KAKENHI[21J00416] ; ARC Future Fellowship[FT180100321] ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology
Funding OrganizationAustralian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; JSPS Overseas Research Fellowships ; JSPS Overseas Research Fellowships ; JSPS KAKENHI ; JSPS KAKENHI ; ARC Future Fellowship ; ARC Future Fellowship ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) by the Australian Government ; Western Australian Government ; Western Australian Government ; Australian Government ; Australian Government ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology ; Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000697277900005
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75708
Collection中国科学院国家天文台
Corresponding AuthorYoshiura, S.; Pindor, B.
Affiliation1.Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
2.Kumamoto Univ, Fac Adv Sci & Technol, Kumamoto 8608555, Japan
3.Natl Astron Observ Japan, Mizusawa VLBI Observ, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
4.ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Bentley, WA, Australia
5.Curtin Univ, Int Ctr Radio Astron Res, Perth, WA 6845, Australia
6.Winona State Univ, Dept Phys, Winona, MN 55987 USA
7.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
8.Univ Washington, Dept Phys, Seattle, WA 98195 USA
9.Univ Washington, eSci Inst, Seattle, WA 98195 USA
10.Nagoya Univ, Grad Sch Sci, Div Particle & Astrophys Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan
11.CSIRO, Astron & Space Sci CASS, POB 76, Epping, NSW 1710, Australia
12.Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2000, Australia
13.Brown Univ, Dept Phys, Providence, RI 02912 USA
14.Kumamoto Univ, Int Res Org Adv Sci & Technol, 2-39-1 Kurokami, Kumamoto 8608555, Japan
15.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
16.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Yoshiura, S.,Pindor, B.,Line, J. L. B.,et al. A new MWA limit on the 21 cm power spectrum at redshifts similar to 13-17[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,505(4):4775-4790.
APA Yoshiura, S..,Pindor, B..,Line, J. L. B..,Barry, N..,Trott, C. M..,...&Zheng, Q..(2021).A new MWA limit on the 21 cm power spectrum at redshifts similar to 13-17.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(4),4775-4790.
MLA Yoshiura, S.,et al."A new MWA limit on the 21 cm power spectrum at redshifts similar to 13-17".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.4(2021):4775-4790.
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