Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud

C. Agliozzo, G. Umana, C. Trigilio, C. Buemi, P. Leto, A. Ingallinera, T. Franzen, A. Noriega-Crespo

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The nebulae associated with four luminous blue variables (LBVs) in the Large Magellanic Cloud (LMC) have been observed at 5.5 and 9 GHz using the Australia Telescope Compact Array, and radio emission has been detected for first time in sources R127, R143, S61 and S119. The radio maps of the nebulae have an angular resolution of~1.5 arcsec and a sensitivity of 1.5-3.0 × 10-2 mJy beam-1 and show a very similar morphology to that observed in Ha. This similarity permits us to assume that the Ha emission is not affected by strong intrinsic extinction due to dust within the nebulae. We estimate the masses of ionized gas in the LBV nebulae and find values consistent with those measured in Galactic LBVs.

Original languageEnglish
Title of host publicationRelativity in Fundamental Astronomy
Subtitle of host publicationDynamics, Reference Frames, and Data Analysis
EditorsSergei A. Klioner, Michael H. Soffel, P. Kenneth Seidelmann
Pages181-186
Number of pages6
EditionS261
Publication statusPublished - Apr 2009

Publication series

NameProceedings of the International Astronomical Union
NumberS261
Volume5
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Keywords

  • Bubbles
  • Evolution - stars
  • Mass-loss - ISM
  • Stars

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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