Loading AI tools
核宇宙編年學，也稱為宇宙編年學，是相對來說使用較新的技術來確定天文物理物件和事件的時間尺度。這種技術使用重放射性核種的豐度計算天文物件形成的年齡，類似於地質年代學領域內時髦的岩石定年。
核宇宙編年學已經成功的使用計算出太陽的年齡（45.7±0.2億年）和銀河薄盤面的年齡（(8.8±1.8)×109 y），以及其它的。它也曾用來估計銀河系本身的年齡，例如最近對銀暈中凱雷爾星(Cayrel's Star)所做的研究。精確度的限制因素來自被觀測天體的暗弱程度，更重要的或許是，參予r-過程元素的原始豐度不確定性。
- Bahcall et al. (1995, Reviews of Modern Physics 67, 781)
- del Peloso et al., "The age of the Galactic thin disk from Th/Eu nucleocosmochronology I. Determination of Th/Eu abundance ratios." Astronomy & Astrophysics, 434, (2005) 275.
- del Peloso et al., "The age of the Galactic thin disk from Th/Eu nucleocosmochronology II. Chronological analysis." Astronomy & Astrophysics, 434, (2005) 301.
- del Peloso et al., "The age of the Galactic thin disk from Th/Eu nucleocosmochronology III. Extended sample." Astronomy & Astrophysics, 440, (2005) 1153.
- ESO Press Release 02/01: "First Reading of a Basic Cosmic Chronometer with UVES and the VLT." (Accessed 3/8/06)
- Hill et al., "First Stars. I. The extreme r-element rich, iron-poor halo giant CS 31082-001" Astronomy & Astrophysics, 387, (2002) 560-579. (Accessed 3/8/06) （頁面存檔備份，存於互聯網檔案館）
 | 這是一篇與天文學相關的小作品。您可以透過編輯或修訂擴充其內容。 |
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
