---
res:
  bibo_abstract:
  - Recent surveys of the Magellanic Clouds have revealed a subtype of Wolf–Rayet
    (WR) star with peculiar properties. WN3/O3 spectra exhibit both WR-like emission
    and O3 V-like absorption – but at lower luminosity than O3 V or WN stars. We examine
    the projected spatial distribution of WN3/O3 stars in the Large Magellanic Cloud
    as compared to O-type stars. Surprisingly, WN3/O3 stars are among the most isolated
    of all classes of massive stars; they have a distribution similar to red supergiants
    dominated by initial masses of 10–15 M⊙, and are far more dispersed than classical
    WR stars or luminous blue variables. Their lack of association with clusters of
    O-type stars suggests strongly that WN3/O3 stars are not the descendants of single
    massive stars (30 M⊙ or above). Instead, they are likely products of interacting
    binaries at lower initial mass (10–18 M⊙). Comparison with binary models suggests
    a probable origin with primaries in this mass range that were stripped of their
    H envelopes through non-conservative mass transfer by a low-mass secondary. We
    show that model spectra and positions on the Hertzsprung–Russell diagram for binary-stripped
    stars are consistent with WN3/O3 stars. Monitoring radial velocities with high-resolution
    spectra can test for low-mass companions or runaway velocities. With lower initial
    mass and environments that avoid very massive stars, the WN3/O3 stars fit expectations
    for progenitors of Type Ib and possibly Type Ibn supernovae.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Nathan
      foaf_name: Smith, Nathan
      foaf_surname: Smith
  - foaf_Person:
      foaf_givenName: Ylva Louise Linsdotter
      foaf_name: Götberg, Ylva Louise Linsdotter
      foaf_surname: Götberg
      foaf_workInfoHomepage: http://www.librecat.org/personId=d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
    orcid: 0000-0002-6960-6911
  - foaf_Person:
      foaf_givenName: Selma E
      foaf_name: de Mink, Selma E
      foaf_surname: de Mink
  bibo_doi: 10.1093/mnras/stx3181
  bibo_issue: '1'
  bibo_volume: 475
  dct_date: 2018^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0035-8711
  - http://id.crossref.org/issn/1365-2966
  dct_language: eng
  dct_publisher: Oxford University Press@
  dct_subject:
  - Space and Planetary Science
  - Astronomy and Astrophysics
  dct_title: Extreme isolation of WN3/O3 stars and implications for their evolutionary
    origin as the elusive stripped binaries@
...