Probing Radio Intensity at High-Z from Marion: 2017 Instrument

被引：123

作者：

Philip, L. ^{[1
]}

Abdurashidova, Z. ^{[2
]}

Chiang, H. C. ^{[3
,4
]}

Ghazi, N. ^{[3
]}

Gumba, A. ^{[1
]}

Heilgendor, H. M. ^{[3
]}

Jauregui-Garcia, J. M. ^{[5
]}

Malepe, K. ^{[6
]}

Nunhokee, C. D. ^{[7
]}

Peterson, J. ^{[5
]}

Sievers, J. L. ^{[1
]}

Simes, V. ^{[3
]}

Spann, R. ^{[8
]}

机构：

[1] Univ KwaZulu Natal, Sch Chem & Phys, ZA-4000 Durban, South Africa

[2] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[3] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, ZA-4000 Durban, South Africa

[4] Natl Inst Theoret Phys, ZA-4000 Durban, South Africa

[5] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[6] South African Natl Space Agcy, ZA-7200 Hermanus, South Africa

[7] Rhodes Univ, Dept Phys & Elect, ZA-6140 Grahamstown, South Africa

[8] South African Sq Kilometre Array, ZA-7405 Pinelands, South Africa

来源：

JOURNAL OF ASTRONOMICAL INSTRUMENTATION | 2019年 / 8卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Cosmology; observations; dark ages; reionization; first stars; instrumentation; polarimeters; EPOCH; SARAS;

D O I：

10.1142/S2251171719500041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We introduce Probing Radio Intensity at high-Z from Marion ((PRIM)-M-z), a new experiment designed to measure the globally averaged sky brightness, including the expected redshifted 21 cm neutral hydrogen absorption feature arising from the formation of the first stars. (PRIM)-M-z consists of two dual-polarization antennas operating at central frequencies of 70 and 100MHz, and the experiment is located on Marion Island in the sub-Antarctic. We describe the initial design and configuration of the (PRIM)-M-z instrument that was installed in 2017, and we present preliminary data that demonstrate that Marion Island offers an exceptionally clean observing environment, with essentially no visible contamination within the FM band.

引用

页数：11

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