On the magnetic field of OH 231.8+4.2

Marcelo L. Leal-Ferreira, Wouter H.T. Vlemmings, Philip J. Diamond, Athol Kemball, Nikta Amiri, Jean François Desmurs

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


During the transition from an AGB star to a planetary nebula, a large number of low/intermediate initial mass stars loses its spherical symmetry. The process responsible for that change of morphology is, so far, not well understood. The candidates responsible for shaping these objects are (i) a companion to the star (binary/heavy planet) and its tidal forces, (ii) disk interaction and (iii) magnetic fields - or a combination of these. In particular a binary induced magnetic field is a promising option. To study this we observed the polarization of H2O masers in the known binary pre-Planetary Nebula (pPN) OH231.8+4.2. Our results show a magnetic field B || of ∼45 mG is present in the H2O maser region of this pPN.

Original languageEnglish (US)
Title of host publicationPlanetary Nebulae
Subtitle of host publicationAn Eye to the Future
Number of pages2
StatePublished - Jul 2011

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • magnetic fields
  • masers
  • polarization
  • stars: AGB and post-AGB
  • stars: individual (OH231.8+4.2)

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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