Particle emission from galactic objects due to interactions with primordial black holes

由于与原始黑洞的相互作用而从星系物体发射的粒子

• 批准号: 61171052
• 负责人: Professorin Dr. Julia Tjus
• 金额: --
• 依托单位: Department of Astrophysics
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/61171052?language=en
• 关键词: Particle; emission; galactic; objects; due

This is the proposal for a 2-year project to be accomplished at the University of Gothenburg, in collaboration with Prof. Marek Abramowicz and his working group. The assignment of tasks is the investigation of the impact of primordial black holes on astrophysical objects in the Milky Way. Examples are the Earth, the Sun, or compact objects like white dwarfs and neutron stars. In the early phase of the Universe, primordial black holes (PBHs) are believed to have formed, some of them still existing today. Such black holes are much smaller than typical astrophysical black holes. They have a mass of Mpbh ≥ 1015g. The influence of these black holes while traversing matter is proposed to be studied. In particular, the possibility of the formation of shock and accretion environments is planned to be examined. Such shocks can occur when a PBH traverses dense matter and thereby causes density fluctuations. The final step of this project is the calculation of the resulting particle spectra and their comparison with experimental data. Here, charged particle spectra like those of protons, but also photon and neutrino spectra can be compared to data from current experiments like GLAST, PAMELA and IceCube.

这是哥德堡大学与 Marek Abramowicz 教授及其工作组合作完成的为期 2 年的项目的提案。任务分配是调查原初黑洞对银河系天体物理物体的影响。例如地球、太阳或白矮星和中子星等致密天体。据信，在宇宙的早期阶段，原始黑洞（PBH）已经形成，其中一些至今仍然存在。这种黑洞比典型的天体物理黑洞小得多。它们的质量 Mpbh ≥ 1015g。建议研究这些黑洞穿过物质时的影响。特别是，计划检查形成冲击和吸积环境的可能性。当PBH穿过致密物质时，就会发生这种冲击，从而导致密度波动。该项目的最后一步是计算所得粒子光谱并将其与实验数据进行比较。在这里，带电粒子光谱（例如质子光谱）以及光子和中微子光谱可以与 GLAST、PAMELA 和 IceCube 等当前实验的数据进行比较。

项目成果

Cosmic ray electrons and positrons from supernova explosions of massive stars.

• DOI: 10.1103/physrevlett.103.061101
• 发表时间: 2009-03
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: P. Biermann;J. Becker;A. Meli;W. Rhode;E. Seo;T. Stanev

NO OBSERVATIONAL CONSTRAINTS FROM HYPOTHETICAL COLLISIONS OF HYPOTHETICAL DARK HALO PRIMORDIAL BLACK HOLES WITH GALACTIC OBJECTS

假设的暗晕原初黑洞与星系物体的假设碰撞没有观测限制

• DOI: 10.1088/0004-637x/705/1/659
• 期刊: The Astrophysical Journal
• 作者: M. A. Abramowicz;J. K. Becker;P. L. Biermann;A. Garzilli;F. Johansson;L. Qian
• 通讯作者: L. Qian