Theoretical Studies of Magnetic Degenerate Stars

磁简并星的理论研究

• 批准号: 8822954
• 负责人: Ganesar Chanmugam
• 金额: $ 11.62万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-15 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8822954&HistoricalAwards=false
• 关键词: Theoretical; Studies; Magnetic; Degenerate; Stars

Many stellar objects are known to possess magnetic fields. In some stars, as in the case of the sun, the magnetic fields are relatively weak and chiefly concentrated in certain regions. In other stars, such as some of the white dwarfs or neutron stars, the magnetic fields may be very strong, exceeding the terrestrial magnetic field by factors of a million and more. The Principal Investigator proposes to investigate the magnetic fields found in cataclysmic binary star systems (which typically contain a white dwarf) and in neutron stars. In particular, he will study the emission of radiation, known as cyclotron emission, from the magnetic field regions of these stars. The emission arises when fast moving charged particles enter the magnetic fields and experience rotational accelerations. The PI expects that the investigation of cyclotron emission from cataclysmic binaries will improve our understanding of mass exchange between the stellar members of these systems. The investigation of cyclotron emission from neutron stars should provide information about the observed slowing down and spinning up of the rotation of these objects.

许多恒星物体都具有磁场。 在 有些恒星，比如太阳，磁场 相对薄弱，主要集中在某些地区。 在 其他恒星，如一些白色矮星或中子星， 磁场可能非常强，超过地球磁场。 磁场强度的一百万倍甚至更多 首席研究员建议研究磁 在激变星星系统中发现的磁场（通常 包含一颗白色矮星）和中子星。 他特别 将研究辐射的发射，称为回旋加速器 这些恒星的磁场区域发出的辐射。 的 当快速移动的带电粒子进入 磁场并经历旋转加速度。 的PI 预计，回旋辐射的调查，从 激变双星将提高我们对质量的理解 这些系统的恒星成员之间的交换。 的 中子星回旋辐射研究 提供有关观测到的减速和旋转的信息 这些物体的旋转。