The population of radio-quiet and thermally emitting isolated neutron stars. A comprehensive picture of neutron star evolution in the Galaxy

无线电静默和热发射的孤立中子星的数量。

• 批准号: 197551926
• 负责人: Dr. Adriana Mancini Pires
• 金额: --
• 依托单位: Leibniz-Institut für Astrophysik Potsdam (AIP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/197551926?language=en
• 关键词: population; radio; quiet; thermally; emitting

The observed population of neutron stars is dominated by radio pulsars. In recent years, however, different observational manifestations of isolated neutron stars (INSs) have been discovered, which include magnetars, X-ray dim isolated neutron stars (XDINS) and rotating radio transients (RRATs). In particular, XDINS constitute a homogeneous group of seven nearby, cooling INSs displaying unique properties. While currently fewer in number of detected sources, the peculiar INS subgroups might represent a considerable fraction of the neutron stars in the Galaxy and are very important for a number of reasons. First, the investigation of individual sources can greatly impact our understanding of the physics of matter at extreme conditions of gravity and magnetic field. Second, the relations between the various subgroups help us to understand the main properties determining the neutron star phenomenology. Finally, as new objects are discovered, a comprehensive picture of neutron star birth and evolution in the Milky Way can be aimed for. We propose to investigate the Galactic population of neutron stars, especially focusing on XDINS, in order to characterise neutron star properties and evolutionary state, as well as to understand how the peculiar subgroups relate to each other and to the bulk of the “normal” radio pulsar population. These goals will be pursued by studying further the existing sample of peculiar INSs, by identifying new INS candidates at greater distances and by modeling the creation, evolution and detectability of thermally emitting INSs in the Milky Way with current and future X-ray facilities.

观测到的中子星主要是射电中子星。然而，近年来，人们发现了不同的孤立中子星（INS）观测表现，包括磁星、X射线暗孤立中子星（XDINS）和旋转射电瞬变（RRAT）。特别是，XDINS构成了一个同质的七个附近，冷却INS显示独特的属性。虽然目前探测到的中子源数量较少，但奇特的INS亚群可能代表了银河系中相当大一部分的中子星，并且由于许多原因而非常重要。首先，对单个来源的研究可以极大地影响我们对重力和磁场极端条件下物质物理学的理解。其次，各个子群之间的关系有助于我们理解决定中子星星现象学的主要性质。最后，随着新天体的发现，我们可以全面了解银河系中子星星的诞生和演化。我们建议调查银河系的中子星人口，特别是集中在XDINS，以了解中子星星的性质和演化状态，以及了解如何特殊的子群相互关系，并与“正常”的射电脉冲星人口的大部分。这些目标将通过进一步研究现有的特殊INS样本，通过在更远的距离上识别新的INS候选者，以及通过利用当前和未来的X射线设施对银河系中热发射INS的创建、演变和可探测性进行建模来实现。

项目成果

XMM-Newton reveals a candidate period for the spin of the “Magnificent Seven” neutron star RX J1605.3+3249

• DOI: 10.1051/0004-6361/201423380
• 发表时间: 2014-01
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: A. Pires;F. Haberl;V. Zavlin;C. Motch;S. Zane;M. Potsdam;M. F. Physik;NASA's Goddard Space Flight Center;Cnrs;U. Strasbourg;Observatoire Astronomique;Mullard Space Science Laboratory;A. Jena

New XMM-Newton observation of the thermally emitting isolated neutron star 2XMM J104608.7-594306

热发射孤立中子星的新 XMM-牛顿观测 2XMM J104608 7-594306

• DOI: 10.1051/0004-6361/201526436
• 发表时间: 2015
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: Turolla;Schwope;Treves
• 通讯作者: Treves

The peculiar isolated neutron star in the Carina Nebula Deep XMM-Newton and ESO-VLT observations of 2XMM J104608.7-594306

船底座星云深部 XMM-Newton 和 ESO-VLT 观测中 2XMM J104608 7-594306 中奇特的孤立中子星

• DOI: 10.1051/0004-6361/201219161
• 发表时间: 2012
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: Turolla;Schwope;Treves;Janot-Pacheco
• 通讯作者: Janot-Pacheco