Analysis of 21-cm tomographic data

被引：0

作者：

Mellema, Garrelt ^{[1
]}

Giri, Sambit

Ghara, Raghunath

机构：

[1] Stockholm Univ, AlbaNova, Dept Astron, SE-10691 Stockholm, Sweden

来源：

PEERING TOWARDS COSMIC DAWN | 2018年 / 12卷 / S333期

关键词：

techniques: image processing; interferometric; (cosmology:) diffuse radiation; intergalactic medium; radio lines: general; SIZE STATISTICS; REIONIZATION;

D O I：

10.1017/S1743921318000716

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The future SKA1-Low radio telescope will be powerful enough to produce tomographic images of the 21-cm signal from the Epoch of Reionization. Here we address how to identify ionized regions in such data sets, taking into account the resolution and noise levels associated with SKA1-Low. We describe three methods of which one, superpixel oversegmentation, consistently performs best.

引用

页码：26 / 29

页数：4

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