论文标题
钻石(著名)快速自动的高峰装袋
Fast and Automated Peak Bagging with DIAMONDS (FAMED)
论文作者
论文摘要
表现出振荡的低和中间质量的恒星可能显示出几十个可检测到的振荡模式。振荡模式是一种强大的限制恒星的内部结构和旋转动力学,因此工具允许一个人获得准确的恒星年龄。到目前为止,已经发现的成千上万的太阳能振荡器代表了基本恒星特性的巨大多样性和可用的进化阶段。由于可以在此类恒星中识别的各种振荡特征,因此正确地详细描述振荡模式特别具有挑战性,尤其是鉴于大型恒星样品。克服此问题需要一种自动化方法,该方法必须同时快速,可靠和灵活。此外,这种方法不仅应能够从不同进化阶段的恒星中提取频率,线宽和振幅的振荡模式属性,而且还能够为提取的每种模式分配正确的模式识别。在这里,我们介绍了著名的新型管道(带有钻石的快速和自动化的峰袋),该管道能够在恒星中进行自动化和详细的星形分析,范围从主序列到恒星进化的核心螺旋式燃烧阶段。因此,这包括次级恒星,沿红色巨型分支(RGB)演变而来的恒星,而恒星可能会朝向早期的渐近巨型分支。在本文中,我们还展示了著名的如何检测主要序列,亚巨人,低亮度RGB和燃烧核心螺旋的旋转模式的旋转。著名的可以从其公共GitHub存储库(https://github.com/enricocorsaro/famed)下载。
Stars of low and intermediate mass that exhibit oscillations may show tens of detectable oscillation modes each. Oscillation modes are a powerful to constrain the internal structure and rotational dynamics of the star, hence tool allowing one to obtain an accurate stellar age. The tens of thousands of solar-like oscillators that have been discovered thus far are representative of the large diversity of fundamental stellar properties and evolutionary stages available. Because of the wide range of oscillation features that can be recognized in such stars, it is particularly challenging to properly characterize the oscillation modes in detail, especially in light of large stellar samples. Overcoming this issue requires an automated approach, which has to be fast, reliable, and flexible at the same time. In addition, this approach should not only be capable of extracting the oscillation mode properties of frequency, linewidth, and amplitude from stars in different evolutionary stages, but also able to assign a correct mode identification for each of the modes extracted. Here we present the new freely available pipeline FAMED (Fast and AutoMated pEak bagging with DIAMONDS), which is capable of performing an automated and detailed asteroseismic analysis in stars ranging from the main sequence up to the core-Helium-burning phase of stellar evolution. This, therefore, includes subgiant stars, stars evolving along the red giant branch (RGB), and stars likely evolving toward the early asymptotic giant branch. In this paper, we additionally show how FAMED can detect rotation from dipolar oscillation modes in main sequence, subgiant, low-luminosity RGB, and core-Helium-burning stars. FAMED can be downloaded from its public GitHub repository (https://github.com/EnricoCorsaro/FAMED).