VLT observations of the highly ionized nebula around Brey2

Y. Nazé, G. Rauw, J. Manfroid, Y. H. Chu, J. M. Vreux

Research output: Contribution to journalArticle

Abstract

We present the first high resolution He II λ4686 images of the high excitation nebula around the WR star Brey2 in the LMC. This nebula presents a striking morphology: a small arc-like feature some 3.6 pc in radius is particularly prominent in the He II λ4686 line. We further discover a previously unknown faint He II emission that extends over an area of 22 × 17 pc2. An even fainter He II emission is apparently associated with the interstellar bubble blown by the progenitor of Brey2. The total He II flux corresponds to an ionizing flux of 4 × 1047 photons s-1. Hα, [O III], and He I λ5876 images and long-slit spectra are also examined in this letter, enabling us to investigate the detailed physical properties at various locations of the nebula.

Original languageEnglish (US)
Pages (from-to)L13-L16
JournalAstronomy and Astrophysics
Volume401
Issue number2
DOIs
StatePublished - Apr 2003

Keywords

  • ISM: abundances
  • ISM: bubbles
  • ISM: supernova remnants
  • Stars: individual: Brey2

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'VLT observations of the highly ionized nebula around Brey2'. Together they form a unique fingerprint.

  • Cite this