At the Cross-Roads of Astrophysics and Cosmology (Iau S376): Period-Luminosity Relations in the 2020s

de Grijs, Richard, Whitelock, Patricia A., Catelan, Márcio

  • 出版商: Cambridge
  • 出版日期: 2024-05-30
  • 售價: $5,620
  • 貴賓價: 9.5$5,339
  • 語言: 英文
  • 頁數: 300
  • 裝訂: Hardcover - also called cloth, retail trade, or trade
  • ISBN: 1009353047
  • ISBN-13: 9781009353045
  • 相關分類: 物理學 Physics
  • 海外代購書籍(需單獨結帳)

相關主題

商品描述

The period-luminosity relation (PLR) is an important relationship between the fundamental physical properties of many types of variable stars. Most recognisable is the PLR of Cepheids, which allows classical Cepheids to be used as primary distance indicators, establishing the traditional cosmic distance scale. Well-defined relationships also exist between the periods and luminosities of many other types of pulsating stars. IAU Symposium 376 discusses recent observational and theoretical results achieved by the continued, detailed scrutiny of the PLR, including its shape, calibration and dependence on stellar parameters and chemical abundances. Intrinsic PLR widths may offer unique insights into the physical processes shaping these relations and the underlying physical properties of the stars contributing to these relationships. This topic is timely, given the wealth of data recently obtained using state-of-the-art ground- and space-based facilities, high-impact Gaia data releases and the initial operations of the James Webb Space Telescope.

商品描述(中文翻譯)

週期-光度關係(PLR)是許多類型變星的基本物理特性之間的重要關係。最為人熟知的是Cepheids的PLR,它使得古典Cepheids能夠被用作主要的距離指標,建立了傳統的宇宙距離尺度。許多其他類型的脈動星的週期和光度之間也存在明確的關係。國際天文學聯合會第376號研討會討論了通過對PLR的持續、詳細的審查所取得的最新觀測和理論結果,包括其形狀、校準以及對恆星參數和化學豐度的依賴性。內在的PLR寬度可能提供獨特的洞察力,揭示塑造這些關係的物理過程以及對這些關係有貢獻的恆星的基本物理特性。鑑於最近使用最先進的地面和太空設施獲得的大量數據、高影響力的Gaia數據發布以及詹姆斯·韋伯太空望遠鏡的初步運營,這個主題具有時機性。