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

Resultado de la investigación: Chapter

Resumen

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.

Idioma originalEnglish
Título de la publicación alojadaRelativity in Fundamental Astronomy
Páginas181-186
Número de páginas6
Volumen5
EdiciónS261
EstadoPublished - abr 2009

Serie de la publicación

NombreProceedings of the International Astronomical Union
NúmeroS261
Volumen5
ISSN (versión impresa)17439213
ISSN (versión digital)17439221

Huella dactilar

blue stars
variable stars
Magellanic clouds
nebulae
ionized gases
radio emission
angular resolution
extinction
dust
telescopes
sensitivity
estimates

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Citar esto

Agliozzo, C., Umana, G., Trigilio, C., Buemi, C., Leto, P., Ingallinera, A., ... Noriega-Crespo, A. (2009). Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud. En Relativity in Fundamental Astronomy (S261 ed., Vol. 5, pp. 181-186). (Proceedings of the International Astronomical Union; Vol. 5, N.º S261).
Agliozzo, C. ; Umana, G. ; Trigilio, C. ; Buemi, C. ; Leto, P. ; Ingallinera, A. ; Franzen, T. ; Noriega-Crespo, A. / Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud. Relativity in Fundamental Astronomy. Vol. 5 S261. ed. 2009. pp. 181-186 (Proceedings of the International Astronomical Union; S261).
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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.",
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Agliozzo, C, Umana, G, Trigilio, C, Buemi, C, Leto, P, Ingallinera, A, Franzen, T & Noriega-Crespo, A 2009, Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud. En Relativity in Fundamental Astronomy. S261 ed., vol. 5, Proceedings of the International Astronomical Union, n.º S261, vol. 5, pp. 181-186.

Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud. / Agliozzo, C.; Umana, G.; Trigilio, C.; Buemi, C.; Leto, P.; Ingallinera, A.; Franzen, T.; Noriega-Crespo, A.

Relativity in Fundamental Astronomy. Vol. 5 S261. ed. 2009. p. 181-186 (Proceedings of the International Astronomical Union; Vol. 5, N.º S261).

Resultado de la investigación: Chapter

TY - CHAP

T1 - Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud

AU - Agliozzo, C.

AU - Umana, G.

AU - Trigilio, C.

AU - Buemi, C.

AU - Leto, P.

AU - Ingallinera, A.

AU - Franzen, T.

AU - Noriega-Crespo, A.

PY - 2009/4

Y1 - 2009/4

N2 - 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.

AB - 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.

KW - Bubbles

KW - Evolution - stars

KW - Mass-loss - ISM

KW - Stars

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M3 - Chapter

AN - SCOPUS:84884928696

SN - 9780521764810

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T3 - Proceedings of the International Astronomical Union

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BT - Relativity in Fundamental Astronomy

ER -

Agliozzo C, Umana G, Trigilio C, Buemi C, Leto P, Ingallinera A y otros. Radio detection of nebulae around four luminous blue variable stars in the large magellanic cloud. En Relativity in Fundamental Astronomy. S261 ed. Vol. 5. 2009. p. 181-186. (Proceedings of the International Astronomical Union; S261).