Erick Nagel
Departamento de Astronomía, Universidad de Guanajuato, 36240, Guanajuato, Guanajuato, Mexico. (erick@astro.ugto.mx).
Received 2013 August 5.
Accepted 2013 October 17.
]]> RESUMEN
El descubrimiento de una compañera de la estrella Herbig Ae/Be HD 142527 motiva el estudio del efecto que produce en la SED. El principal cambio en la configuración del sistema es la formación de una brecha en el disco. Debido a este cambio se forma una pared (lado externo del hueco), la cual está iluminada frontalmente por la radiación estelar. Se modela la SED, considerando todas las componentes: un disco con dos brechas (una producida por la compañera estelar y la otra por planetas potenciales), tres paredes (dos asociadas con las brechas y la otra por sublimación de polvo), y corrientes de material ópticamente delgadas en las brechas y las estrellas. El material ópticamente delgado requerido para ajustar el espectro está localizado en un halo, pero también dentro de las brechas. El halo modelado es más pequeño que el considerado en un modelo previo del sistema.
ABSTRACT
The discovery of a companion of the Herbig Ae/Be star HD 142527 motivates the study of the effect that it produces on the SED. The main change on the system configuration is the formation of a gap in the disk. Due to this change, a wall (outer edge of the gap), which is frontally illuminated by stellar radiation is formed. We present a model for the SED, considering all the components: a disk with two gaps (one produced by the stellar companion and the other by potential planets), three walls (two associated with the gaps and the other with dust sublimation), and optically thin streams of material in the gaps and the stars. The optically thin material required to fit the spectrum is located in a halo, but also inside the gaps. The modeled halo is smaller than the one considered in a previous model of the system.
Key Words: infrared: general — protoplanetary disks — stars: pre-main sequence.
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REFERENCES
]]>Artymowicz, P., & Lubow, S. H. 1994, ApJ, 421, 651 [ Links ]
----------. 1996, ApJ, 467, L77 [ Links ]
Biller, B., et al. 2012, ApJ, 753, L38 [ Links ]
Casassus, S., et al. 2012, ApJ, 754, L31 [ Links ]
Casassus, S., et al. 2013, Nature, 493, 191 [ Links ]
Crida, A., Morbidelli, A., & Masset, F. 2006, Icarus, 181, 587 [ Links ]
D' Alessio, P., Calvet, N., Hartmann, L., Franco Hernández, R., & Servín, H. 2006, ApJ, 638, 314 [ Links ]
D' Alessio, P., et al. 2005, ApJ, 621, 461 [ Links ]
de Zeeuw, P. T., Hoogerwerf, R., de Bruijne, J. H. J., Brown, A. G. A., & Blaauw, A. 1999, AJ, 117, 354 [ Links ]
Dorschner, J., Begemann, B., Henning, T., Jäger, C., & Mutschke, H. 1995, A & A, 300, 503 [ Links ]
Dullemond, C. P., Dominik, C., & Natta, A. 2001, ApJ, 560, 957 [ Links ]
Espaillat, C., Calvet, N., Luhman, K. L., Muzerolle, J., & D'Alessio, P. 2008, ApJ, 682, L125 [ Links ]
Espaillat, C., et al. 2007, ApJ, 670, L135 [ Links ]
Espaillat, C., et al. 2010, ApJ, 717, 441 [ Links ]
Espaillat, C., et al. 2011, ApJ, 728, 49 [ Links ]
Fujiwara, H., et al. 2006, ApJ, 644, L133 [ Links ]
Fukagawa, M., et al. 2006, ApJ, 636, L153 [ Links ]
Greenberg, R., Hartmann, W. K., Chapman, C. R., & Wacker, J. F. 1978, Icarus, 35, 1 [ Links ]
Gullbring, E., Hartmann, L., Briceño, C., & Calvet, N. 1998, ApJ, 492, 323 [ Links ]
Holman, M. J., et al. 2010, Science, 330, 51 [ Links ]
Ida, S., & Lin, D. N. C. 2004, ApJ, 604, 388 [ Links ]
Isella, A., & Natta, A. 2005, A & A, 438, 899 [ Links ]
Jäger, C., Molster, F. J., Dorschner, J., Henning, Th., Mutschke, H., & Waters, L. B. F. M. 1998, A & A, 339, 904 [ Links ]
Juhász, A., et al. 2010, ApJ, 721, 431 [ Links ]
Kley, W., D' Angelo, G., & Henning, T. 2001, ApJ, 547, 457 [ Links ]
Krijt, S., & Dominik, C. 2011, A&A, 531, 80 [ Links ]
Lissauer, J. J. 1993, ARA & A, 31, 129 [ Links ]
Lissauer, J. J., et al. 2011, Nature, 470, 53 [ Links ]
Mathis, J. S., & Whiffen, G. 1989, ApJ, 341, 808 [ Links ]
Nagel, E., D'Alessio, P., Calvet, N., Espaillat, C., Sargent, B., Hernández, J., & Forrest, W.J. 2010, ApJ, 708, 38 [ Links ]
Nagel, E., D'Alessio, P., Calvet, N., Espaillat, C., & Trinidad, M. A. 2013, RevMexAA, 49, 43 [ Links ]
Nagel, E., Espaillat, C., D'Alessio, P., & Calvet, N. 2012, ApJ, 747, 139 [ Links ]
Nagel, E., & Pichardo, B. 2008, MNRAS, 384, 548 [ Links ]
Nelson, R. P., Papaloizou, J. C. B., Masset, F., & Kley, W. 2000, MNRAS, 318, 18 [ Links ]
Pichardo, B., Sparke, L. S., & Aguilar, L. A. 2008, MNRAS, 391, 815 [ Links ]
Pollack, J. B., Hubickyj, O., Bodenheimer, P., Lissauer, J. J., Podolak, M., & Greenzweig, Y. 1996, Icarus, 124, 62 [ Links ]
Quillen, A. C., Blackman, E. G., Frank, A., & Varniere, P. 2004, ApJ, 612, L137 [ Links ]
Rameau, J., Chauvin, G., Lagrange, A.-M., Thebault, P., Milli, J., Girard, J. H., & Bonnefoy, M. 2012, A & A, 546, 24 [ Links ]
Raymond, S. N., & Armitage, P. J. 2013, MNRAS, 429, L99 [ Links ]
Rice, W. K. M., Armitage, P. J., Wood, K., & Lodato, G. 2006, MNRAS, 373, 1619 [ Links ]
Siess, L., Dufour, E., & Forestini, M. 2000, A & A, 358, 593 [ Links ]
Tannirkulam, A., Harries, T. J., & Monnier, J. D. 2007, ApJ, 661, 374 [ Links ]
Thalmann, C., et al. 2010, ApJ, 718, L87 [ Links ]
Van Boekel, R., Min, M., Waters, L. B. F. M., de Koter, A., Dominik, C., Van den Ancker, M. E., & Bouwman, J. 2005, A & A, 437, 189 [ Links ]
Verhoeff, A. P., et al. 2011, A & A, 528, 91 [ Links ]
Wetherill, G. W. 1980, ARA & A, 18, 77 [ Links ]
Zhu, Z., Nelson, R. P., Hartmann, L., Espaillat, C., & Calvet, N. 2011, ApJ, 729, 47 [ Links ] ]]>