论文标题

ASKAP的技术和科学发展

The technological and scientific development of ASKAP

论文作者

Koribalski, B. S.

论文摘要

在过去几年中,试点调查的科学结果与完整的36-澳大利亚平方公里阵列探路者(ASKAP)的成果大大增加。计划于今年晚些时候开始进行全面调查,这种趋势可能会继续进行。得益于新颖的阶段阵列,每个Askap指向覆盖物的覆盖物约为30平方,这使其成为一款快速的调查机,可提供高分辨率的天空图像。最近的科学亮点包括对麦哲伦云中中性氢的研究以及附近的星系组和簇,数百万无线电连续源的目录,发现奇数无线电圈的发现以及快速无线电爆发的本地化,仅举几个。为了证明ASKAP调查速度,我们还进行了快速ASKAP连续调查(RAC),涵盖了15 ARCSEC分辨率下降+41 DEGR以南的整个天空。

Science results from pilot surveys with the full 36-antenna Australian Square Kilometer Array Pathfinder (ASKAP) have increased strongly over the last few years. This trend is likely to continue with full surveys scheduled to commence later this year. Thanks to novel Phased Array Feeds each ASKAP pointing covers around 30 square degr, making it a fast survey machine delivering high-resolution radio images of the sky. Among recent science highlights are the studies of neutral hydrogen in the Magellanic Clouds as well as nearby galaxy groups and clusters, catalogs of millions of radio continuum sources, the discovery of odd radio circles, and the localization of fast radio bursts, to name just a few. To demonstrate the ASKAP survey speed we also conducted the Rapid ASKAP Continuum Survey (RACS) covering the whole sky south of declination +41 degr at 15 arcsec resolution.

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