十一亿年前在一个巨大的星系周围观察到的丰富气体流
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在PubMed上查看摘要
概括
此摘要是机器生成的。气体循环是早期恒星形成的燃料. 科学家们观察到一个巨大的星系周围的气体流, 发现了以前喷射出来的丰富物质的证据, 支持星系组装模型.
科学领域
- 宇宙进化
- 星系的形成和演变
- 天体物理学
背景情况
- 恒星形成对星系进化至关重要.
- 模拟表明气体循环对于维持恒星形成至关重要,特别是在早期的宇宙中.
- 了解气体积聚和喷射是银河系形成的关键.
研究的目的
- 在高红移的巨大星系周围调查气体循环.
- 提供先前排出的气体的再形成的观测证据.
- 了解早期宇宙中恒星形成的机制.
主要方法
- 一个巨大的星系在红移2.3的观测.
- 在环银河系中检测中性,和电离碳的排放线.
- 对环银河系气体的动力学和化学丰度的分析.
主要成果
- 从银河系中检测到100千帕塞克的辐射线.
- 环银河系气体动力学是一致的灵感流.
- 碳丰富表明从先前排出的物质中得到了丰富.
结论
- 观察到的气体流被解释为气体循环的证据.
- 这种循环过程可能有助于在高红移星系组合期间持续恒星形成.
- 这些发现支持涉及气体循环的星系进化理论模型.
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