演化中的星暴-活动星系核联系:对SKA及其寻路器的影响
The evolving starburst-AGN connection: Implications for SKA and its pathfinders
摘要:
现代恒星暴与活动星系核的联系在早期宇宙中的反映有多好?这一问题正开始被深宽射电巡天(如ATLAS)所回答,它为我们提供了一个高红移星系的新视角。例如,我们发现了强大的无线电噪声活动星系核,它们在光学和红外线上看起来像恒星形成的螺旋,这是一种在现代宇宙中几乎未知的复合物。我们发现了在红外线中出乎意料地不可见的射电亮天体,它们可能是非常高红移的射电星系和类星体。虽然恒星形成星系的无线电-远红外相关性现在已经扩展到microJy水平,但我们仍然不能可靠地区分星暴和活动星系核。那么,我们需要做些什么来确保SKA及其探路者能够了解早期宇宙中的星系演化呢?
英文摘要:
How well is the modern-day starburst-AGN connection mirrored in the early Universe? This is starting to be answered by deep wide radio surveys such as ATLAS, which are giving us a new view of high redshift galaxies. For example, we find powerful radio-loud AGNs which look like star-forming spirals in the optical and infrared, a composite which is almost unknown in the modern Universe. We find radio-bright objects which are unexpectedly invisible in the infrared, and which may be very high redshift radio galaxies and quasars. And although the radio-far-infrared correlation for star-forming galaxies has now been extended down to microJy levels, we still cannot reliably distinguish between starburst and AGN. So what do we need to do to ensure that SKA and its pathfinders will be able to understand galaxy evolution in the early Universe?
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。