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Cappa, C.E.; Vasquez, J.; Pineault, S.; Cichowolski, S. "The radio and infrared counterparts of the ring nebula around HD 211564" (2010) Monthly Notices of the Royal Astronomical Society. 403(1):387-397
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Abstract:

We report the detection of the radio and infrared (IR) counterparts of the ring nebula around the WN3(h) star HD 211564 (WR 152), located to the south-west of the H II region Sh2 132. Using radio continuum data from the Canadian Galactic Plane Survey, we identified the radio counterparts of the two concentric rings, of about 9 and 16 arcmin in radius, related to the star. After applying a filling factor f = 0.05-0.12, electron densities and ionized masses are in the range 10-16 cm-3 and 450-700 M⊙ respectively. The analysis of the H I gas emission distribution allowed the identification of 5900 M⊙ of neutral atomic gas with velocities between -52 and -43 km s-1 probably linked to the nebula. The region of the nebula is almost free of molecular gas. Only four small clumps were detected, with a total molecular mass of 790 M⊙. About 310 M⊙ are related to a small IR shell-like source linked to the inner ring, which is also detected in the MSX band A.AnIRAS young stellar object candidate is detected in coincidence with the shell-like IR source. We suggest that the optical nebula and its neutral counterparts originated from the stellar winds from the Wolf-Rayet star and its massive progenitor, and are evolving in the envelope of a slowly expanding shell centred at (l,b) = (102{ring operator}.30, -0°.50) of about 31 pc in radius. The bubble's energy conversion efficiency is in agreement with recent numerical analysis and with observational results. © 2010 The Authors. Journal compilation. © 2010 RAS.

Registro:

Documento: Artículo
Título:The radio and infrared counterparts of the ring nebula around HD 211564
Autor:Cappa, C.E.; Vasquez, J.; Pineault, S.; Cichowolski, S.
Filiación:Instituto Argentino de Radioastronomía (CCT-La Plata, CONICET), CC 5, 1894, Villa Elisa, Argentina
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, La Plata, Argentina
Départment de physique, de génie physique et d'optique and, Centre de recherche en astrophysique du Québec (CRAQ), Université Laval, Québec, GIVOA6, Canada
Instituto de Astronomía y Física del Espacio (IAFE), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
Palabras clave:ISM: bubbles; Stars: individual: HD 211564; Stars: Wolf-Rayet
Año:2010
Volumen:403
Número:1
Página de inicio:387
Página de fin:397
DOI: http://dx.doi.org/10.1111/j.1365-2966.2009.16122.x
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v403_n1_p387_Cappa

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Citas:

---------- APA ----------
Cappa, C.E., Vasquez, J., Pineault, S. & Cichowolski, S. (2010) . The radio and infrared counterparts of the ring nebula around HD 211564. Monthly Notices of the Royal Astronomical Society, 403(1), 387-397.
http://dx.doi.org/10.1111/j.1365-2966.2009.16122.x
---------- CHICAGO ----------
Cappa, C.E., Vasquez, J., Pineault, S., Cichowolski, S. "The radio and infrared counterparts of the ring nebula around HD 211564" . Monthly Notices of the Royal Astronomical Society 403, no. 1 (2010) : 387-397.
http://dx.doi.org/10.1111/j.1365-2966.2009.16122.x
---------- MLA ----------
Cappa, C.E., Vasquez, J., Pineault, S., Cichowolski, S. "The radio and infrared counterparts of the ring nebula around HD 211564" . Monthly Notices of the Royal Astronomical Society, vol. 403, no. 1, 2010, pp. 387-397.
http://dx.doi.org/10.1111/j.1365-2966.2009.16122.x
---------- VANCOUVER ----------
Cappa, C.E., Vasquez, J., Pineault, S., Cichowolski, S. The radio and infrared counterparts of the ring nebula around HD 211564. Mon. Not. R. Astron. Soc. 2010;403(1):387-397.
http://dx.doi.org/10.1111/j.1365-2966.2009.16122.x