Direct in situ Observations of Magnetic Fields in Galaxies

星系磁场的直接原位观测

• 批准号: 0908572
• 负责人: Carl Heiles
• 金额: $ 36.47万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908572&HistoricalAwards=false
• 关键词: Direct; situ; Observations; Magnetic; Fields

This is a research program to study magnetic fields in ultraluminous infrared galaxies (ULIRGs) using polarization and Very Long Baseline Interferometry observations of OH lines. The methods include a survey of Zeeman splitting in OH megamasers using Arecibo Observatory, Very Long Baseline Interferometry maps of masers in several ULIRGs, and measurement of magnetic fields outside megamaser regions using OH absorption lines. The main goal is to determine magnetic fields in the astrophysical plasmas residing in infrared galaxies, and to study their evolution with redshift.

这是一个利用偏振和甚长基线干涉仪观测OH线来研究超亮红外星系（ULIRGs）磁场的研究计划。 这些方法包括利用阿雷西博天文台测量OH超脉泽的塞曼分裂，利用甚长基线干涉测量几个超红外激光器的脉泽，以及利用OH吸收线测量超脉泽区外的磁场。 主要目标是确定红外星系中天体物理等离子体的磁场，并研究其随红移的演化。