التفاصيل البيبلوغرافية
| العنوان: |
On the magnetic fields in voids |
| المؤلفون: |
Michał Hanasz, A. M. Beck, Harald Lesch, Federico Stasyszyn, Rhea-Silvia Remus |
| بيانات النشر: |
arXiv, 2012. |
| سنة النشر: |
2012 |
| مصطلحات موضوعية: |
Physics, Void (astronomy), education.field_of_study, Active galactic nucleus, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Magnetic energy, Astrophysics::High Energy Astrophysical Phenomena, Population, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Galaxy, Void galaxy, Magnetization, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Giant Void, education, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: |
We study the possible magnetization of cosmic voids by void galaxies. Recently, observations revealed isolated starforming galaxies within the voids. Furthermore, a major fraction of a voids volume is expected to be filled with magnetic fields of a minimum strength of about $10^{-15}$ G on Mpc scales. We estimate the transport of magnetic energy by cosmic rays (CR) from the void galaxies into the voids. We assume that CRs and winds are able to leave small isolated void galaxies shortly after they assembled, and then propagate within the voids. For a typical void, we estimate the magnetic field strength and volume filling factor depending on its void galaxy population and possible contributions of strong active galactic nuclei (AGN) which border the voids. We argue that the lower limit on the void magnetic field can be recovered, if a small fraction of the magnetic energy contained in the void galaxies or void bordering AGNs is distributed within the voids.
Comment: 5 pages, 2 figures, accepted to MNRAS Letters after moderate revision |
| DOI: |
10.48550/arxiv.1210.8360 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0c3173c65c47ff88ef1fb099c7e13f0 |
| Rights: |
OPEN |
| رقم الانضمام: |
edsair.doi.dedup.....c0c3173c65c47ff88ef1fb099c7e13f0 |
| قاعدة البيانات: |
OpenAIRE |