Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Aims. The luminous blue variable (LBV) stars are peculiar very massive stars. The study of these stellar objects and their surroundings is important for understanding the evolution of massive stars and its effects on the interstellar medium. We study the LBV star candidate G26.47+0.02. Methods. Using several large-scale surveys in different frequencies we performed a multiwavelength study of G26.47+0.02 and its surroundings. Results. We found a molecular shell (seen in the 13CO J = 1-0 line) that partially surrounds the mid-infrared nebula of G26.47+0.02, which suggests an interaction between the strong stellar winds and the molecular gas. From the HI absorption and the molecular gas study we conclude that G26.47+0.02 is located at a distance of ~4.8 kpc. The radio continuum analysis shows both thermal and non-thermal emission toward this LBV candidate, pointing to wind-wind collision shocks from a binary system. This hypothesis is supported by a search of near-IR sources and the Chandra X-ray analysis. Additional multiwavelength and long-term observations are needed to detect some possible variable behavior, and if that is found, to confirm the binary nature of the system. © 2012 ESO.

Registro:

Documento: Artículo
Título:Study of the luminous blue variable star candidate G26.47+0.02 and its environment
Autor:Paron, S.; Combi, J.A.; Petriella, A.; Giacani, E.
Filiación:Instituto de Astronomía y Física Del Espacio (IAFE), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
FADU-Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
CBC-Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata, Paseo Del Bosque, 1900 FWA La Plata, Argentina
IAR, CONICET, CCT la Plata, C.C. No. 5 (1894) Villa Elisa, Buenos Aires, Argentina
Palabras clave:ISM: clouds; Stars: individual: G26.47+0.02; Stars: massive; Stars: winds outflows; Binary systems; Chandra; Different frequency; Interstellar mediums; ISM : clouds; Luminous Blue Variables; Massive stars; Midinfrared; Molecular gas; Molecular shells; Multi-wavelength study; Multiwavelength; Near-IR; Nonthermal emission; Radio continuum; Stars: individual; Stars: massive; Stars: winds; Stellar wind; Molecules; Stars
Año:2012
Volumen:543
DOI: http://dx.doi.org/10.1051/0004-6361/201218919
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v543_n_p_Paron

Referencias:

  • Aguirre, J.E., Ginsburg, A.G., Dunham, M.K., (2011) ApJS, 192, p. 4
  • Albacete Colombo, J.F., Flaccomio, E., Micela, G., Sciortino, S., Damiani, F., (2007) A&A, 464, p. 211
  • Anders, E., Grevesse, N., (1989) Geochim. Cosmochim. Acta, 53, p. 197
  • Arnaud, K.A., (1996) ASP Conf. Ser., 101, p. 17. , In astronomical data analysis software and systems v ed. G. H. Jacoby, & J. Barnes (San Francisco: ASP)
  • Becker, R.H., White, R.L., Helfand, D.J., Zoonematkermani, S., (1994) ApJS, 91, p. 347
  • Bessell, M.S., Brett, J.M., (1988) PASP, 100, p. 1134
  • Blomme, R., (2011) Bull. Soc. Roy. Sci. Liege, 80, p. 67
  • Boyer, M.L., Sargent, B., Van Loon, J.T., (2010) A&A, 518, pp. L142
  • Caballero, J.A., (2009) A&A, 507, p. 251
  • Clark, J.S., Egan, M.P., Crowther, P.A., (2003) A&A, 412, p. 185
  • Clark, J.S., Crowther, P.A., Larionov, V.M., (2009) A&A, 507, p. 1555
  • Cutri, R.M., Skrutskie, M.F., Van Dyk, S., (2003) 2MASS All Sky Catalog of Point Sources, , http://irsa.ipac.caltech.edu/applications/Gator/
  • De Becker, M., Rauw, G., Blomme, R., (2005) A&A, 437, p. 1029
  • De Jager, C., (1998) A&ARv, 8, p. 145
  • Dougherty, S.M., Williams, P.M., (2000) MNRAS, 319, p. 1005
  • Duncan, R.A., White, S.M., (2002) MNRAS, 330, p. 63
  • Egan, M.P., Clark, J.S., Mizuno, D.R., (2002) ApJ, 572, p. 288
  • Falgarone, E., Lis, D.C., Phillips, T.G., (1994) ApJ, 436, p. 728
  • Fazio, G.G., Hora, J.L., Allen, L.E., (2004) ApJS, 154, p. 10
  • Fich, M., Blitz, L., Stark, A.A., (1989) ApJ, 342, p. 272
  • Gomez, H.L., Dunne, L., Eales, S.A., Edmunds, M.G., (2006) MNRAS, 372, p. 1133
  • Gregory, P.C., Loredo, T.J., (1992) ApJ, 398, p. 146
  • Helfand, D.J., Becker, R.H., White, R.L., Fallon, A., Tuttle, S., (2006) AJ, 131, p. 2525
  • Hillier, D.J., Crowther, P.A., Najarro, F., Fullerton, A.W., (1998) A&A, 340, p. 483
  • Humphreys, R.M., Davidson, K., (1994) PASP, 106, p. 1025
  • Hyodo, Y., Tsujimoto, M., Koyama, K., (2008) PASJ, 60, p. 173
  • Jackson, J.M., Rathborne, J.M., Shah, R.Y., (2006) ApJS, 163, p. 145
  • Jime-Esteban, F.M., Rizzo, J.R., Palau, A., (2010) ApJ, 713, p. 429
  • Kolpak, M.A., Jackson, J.M., Bania, T.M., Clemens, D.P., Dickey, J.M., (2003) ApJ, 582, p. 756
  • Messineo, M., Davies, B., Figer, D.F., (2011) ApJ, 733, p. 41
  • Naze, Y., Rauw, G., Hutsemekers, D., (2012) A&A, 538, pp. A47
  • Nota, A., Livio, M., Clampin, M., Schulte-Ladbeck, R., (1995) ApJ, 448, p. 788
  • Nota, A., Pasquali, A., Marston, A.P., (2002) AJ, 124, p. 2920
  • Pallavicini, R., White, S.M., (1996) Science with Large Millimetre Arrays, p. 268. , ed. P. A. Shaver
  • Petriella, A., Paron, S.A., Giacani, E.B., (2012) A&A, 538, pp. A14
  • Pittard, J.M., Parkin, E.R., (2010) MNRAS, 403, p. 1657
  • Rieke, G.H., Lebofsky, M.J., (1985) ApJ, 288, p. 618
  • Rizzo, J.R., Jime-Esteban, F.M., Ortiz, E., (2008) ApJ, 681, p. 355
  • Rosolowsky, E., Dunham, M.K., Ginsburg, A., (2010) ApJS, 188, p. 123
  • Shaya, E.J., Olling, R.P., (2011) ApJS, 192, p. 2
  • Simon, R., Jackson, J.M., Clemens, D.P., Bania, T.M., Heyer, M.H., (2001) ApJ, 551, p. 747
  • Smith, N., Owocki, S.P., (2006) ApJ, 645, pp. L45
  • Smith, M.A., Cohen, D.H., Gu, M.F., (2004) ApJ, 600, p. 972
  • Stil, J.M., Taylor, A.R., Dickey, J.M., (2006) AJ, 132, p. 1158
  • Sugizaki, M., Mitsuda, K., Kaneda, H., (2001) ApJS, 134, p. 77
  • Wachter, S., Mauerhan, J.C., Van Dyk, S.D., (2010) AJ, 139, p. 2330
  • Werner, M.W., Roellig, T.L., Low, F.J., (2004) ApJS, 154, p. 1

Citas:

---------- APA ----------
Paron, S., Combi, J.A., Petriella, A. & Giacani, E. (2012) . Study of the luminous blue variable star candidate G26.47+0.02 and its environment. Astronomy and Astrophysics, 543.
http://dx.doi.org/10.1051/0004-6361/201218919
---------- CHICAGO ----------
Paron, S., Combi, J.A., Petriella, A., Giacani, E. "Study of the luminous blue variable star candidate G26.47+0.02 and its environment" . Astronomy and Astrophysics 543 (2012).
http://dx.doi.org/10.1051/0004-6361/201218919
---------- MLA ----------
Paron, S., Combi, J.A., Petriella, A., Giacani, E. "Study of the luminous blue variable star candidate G26.47+0.02 and its environment" . Astronomy and Astrophysics, vol. 543, 2012.
http://dx.doi.org/10.1051/0004-6361/201218919
---------- VANCOUVER ----------
Paron, S., Combi, J.A., Petriella, A., Giacani, E. Study of the luminous blue variable star candidate G26.47+0.02 and its environment. Astron. Astrophys. 2012;543.
http://dx.doi.org/10.1051/0004-6361/201218919