Dissipation of magnetic fields in low-metallicity clouds

Kentaro Doi, Hajime Susa, Kazuyuki Omukai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Magnetic fields play important roles in star formation process in our Galaxy. On the other hand, the importance of the magnetic field on the star formation in the early universe has been recognized recently. However, before proceeding to the study on the dynamical effects of the magnetic field in such early star formation process, we have to understand the coupling between the magnetic field with the low metallicity gas, since it is the main ingredient of primordial galaxies. In this study, we explore the dissipation of the magnetic fields from the low metallicity gas clouds, utilizing the detailed chemical reaction model. As a result, we find that the magnetic field is alway frozen to the gas for Z<10-6Z, while it could dissipate from the gas in the case of Z>10-6Z if the gas density falls within a certain range.

Original languageEnglish
Title of host publicationFirst Stars IV - From Hayashi to the Future -
Pages349-351
Number of pages3
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event1st Stars IV: From Hayashi to the Future - Kyoto, Japan
Duration: 2012 May 212012 May 25

Publication series

NameAIP Conference Proceedings
Volume1480
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other1st Stars IV: From Hayashi to the Future
Country/TerritoryJapan
CityKyoto
Period12/5/2112/5/25

Keywords

  • magnetic fields
  • star formation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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