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Abstract:

Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in the radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise the density at the center of SNRs, increasing the X-ray emission from these regions. In this work, we have carried out axisymmetric numerical simulations with the adaptive grid Yguazú-a code, which includes advection of the magnetic field and thermal conduction. We have considered cases with anisotropic and isotropic thermal conduction, as well as with no conduction. We have simulated X-ray (as well as radio synchrotron) emission maps from our numerical simulations, which can be directly compared with observations.

Registro:

Documento: Artículo
Título:Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
Autor:Velázquez, P.F.; Martinell, J.J.; Raga, A.C.; Giacani, E.B.
Filiación:Instituto de Ciencias Nucleares, Univ. Nac. Auton. de México, Apartado Postal 70-543, CP 04510, México DF, Mexico
Inst. Astronomia Fis. del Espacio, Ciudad Universitaria, Pabellón IAFE, CC 67, Buenos Aires, Argentina
Palabras clave:Conduction; ISM: magnetic fields; Methods: numerical; Supernova remnants; X-rays: ISM
Año:2004
Volumen:601
Número:2 I
Página de inicio:885
Página de fin:895
DOI: http://dx.doi.org/10.1086/380755
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v601_n2I_p885_Velazquez

Referencias:

  • Allen, G.E., Petre, R., Gotthelf, E.V., (2001) ApJ, 558, p. 739
  • Benjamin, R.A., Benson, B.A., Cox, D.P., (2001) ApJ, 554, pp. L225
  • Braginskii, S.I., (1965) Rev. Plasma Phys., 1, p. 205
  • Chevalier, R., (1982) ApJ, 258, p. 790
  • Clarke, D.A., Burns, J.O., Norman, M.L., (1989) ApJ, 342, p. 700
  • Condon, J.J., Broderick, J.J., Seielstad, G.A., (1991) AJ, 102, p. 2041
  • Condon, J.J., Broderick, J.J., Seielstad, G.A., Douglas, K., Gregory, P.C., (1994) AJ, 107, p. 1829
  • Condon, J.J., Griffith, M.R., Wright, A.E., (1993) AJ, 106, p. 1095
  • Cowie, L.L., McKee, C.F., (1977) ApJ, 211, p. 135
  • Cox, D.P., Shelton, R.L., Maoiejewski, W., Smith, R.K., Plewa, T., Pawl, A., Rozycska, M., (1999) ApJ, 524, p. 179
  • Dere, K.P., Landi, E., Young, P.R., Zanna, G., (2001) ApJS, 134, p. 331
  • Dubner, G., Giacani, E., Goss, W.M., Green, A., Nyman, L.-A., (2002) A&A, 387, p. 1047
  • Dubner, G.M., Giacani, E.B., Goss, W.M., Winkler, P.F., (1994) AJ, 108, p. 207
  • Dubner, G.M., Velázquez, P.F., Goss, W.M., Holdaway, M.A., (2000) AJ, 120, p. 1933
  • Dwek, E., (1981) ApJ, 246, p. 430
  • Giacani, E.B., Dubner, G., Cappa, C., Testori, J., (1998) A&AS, 133, p. 61
  • Giacani, E.B., Dubner, G.M., Green, A.J., Goss, W.M., Gaensler, B.M., (2000) AJ, 119, p. 281
  • Giacani, E.B., Dubner, G.M., Kassim, N.E., Frail, D.A., Goss, W.M., Winkler, P.F., Williams, B.F., (1997) AJ, 113, p. 1379
  • Hnatyk, B., Petruk, O., (1999) A&A, 344, p. 295
  • Innes, D.E., (1985), Ph.D. thesis, Univ. London; Jun, B.-I., Norman, M.L., (1996) ApJ, 472, p. 245
  • Landini, M., Monsignori Fossi, B.C., (1991) A&AS, 91, p. 183
  • Malyshkin, L., (2001) ApJ, 554, p. 561
  • Matsui, Y., Long, K.S., Tuohy, I.R., (1988) ApJ, 329, p. 838
  • Mazzotta, P., Mazzitelli, G., Colafrancesco, S., Vittorio, N., (1998) A&AS, 133, p. 403
  • Mereghetti, S., Bignami, G.F., Caraveo, P.A., (1996) ApJ, 464, p. 842
  • Milne, D.K., Haynes, R.F., (1994) MNRAS, 270, p. 106
  • Morrison, R., McCammon, D., (1983) ApJ, 270, p. 119
  • Narayan, R., Medvedev, M., (2001) ApJ, 562, pp. L129
  • Ostriker, J., Silk, J., (1973) ApJ, 184, pp. L113
  • Petruk, O., (2001) A&A, 371, p. 267
  • Raga, A.C., De Gouveia dal Pino, E.M., Noriega-Crespo, A., Mininni, P.D., Velazquez, P.F., (2002) A&A, 392, p. 267
  • Raga, A.C., Navarro-González, R., Villagrán-Muniz, M., (2000) Rev. Mexicana Astron. Astrofis., 36, p. 67
  • Raga, A.C., Sobral, H., Villagrán-Muniz, M., Navarro-González, R., Masciadri, E., (2001) MNRAS, 324, p. 206
  • Rho, J., Petre, R., Schlegel, E.M., Hester, J.J., (1994) ApJ, 430, p. 757
  • Sedov, L., (1959) Similarity and Dimensional Methods in Mechanics, , New York: Academic
  • Shelton, R.L., Cox, D.P., Maciejewski, W., Smith, R.K., Plewa, T., Pawl, A., Rózycska, M., (1999) ApJ, 524, p. 192
  • Sobral, H., Villagrán-Muniz, M., Navarro-González, R., Raga, A.C., (2000) App. Phys. Lett., 77, p. 3158
  • Spitzer, L., (1962) Physics of Fully Ionized Gases, , New York: Interscience
  • Van Leer, B., (1982) ICASE Rep. No 82-30, 82 (30). , (Langley: ICASE)
  • Velázquez, P.F., De la Fuente, E., Rosado, M., Raga, A.C., (2001) A&A, 377, p. 1136
  • Velázquez, P.F., Sobral, H., Raga, A.C., Villagrán-Muniz, M., Navarro-González, R., (2001) Rev. Mexicana Astron. Astrofis., 37, p. 87
  • White, R.L., Long, K.S., (1991) ApJ, 373, p. 543
  • Willingale, R., West, R.G., Pye, J.P., Stewart, G.C.E., (1996) MNRAS, 278, p. 749
  • Winkler, P.F., Long, K.S., (1997) ApJ, 491, p. 829
  • Young, P.R., Del Zanna, G., Landi, E., Dere, K.P., Mason, H.E., Landini, M., (2003) ApJS, 144, p. 135
  • Zavlin, V.E., Pavlov, G.C., Sanwal, D., Trümper, J., (2000) ApJ, 540, pp. L25
  • Zhekov, S.A., Myasnilov, A.V., (2000) ApJ, 543, pp. L53

Citas:

---------- APA ----------
Velázquez, P.F., Martinell, J.J., Raga, A.C. & Giacani, E.B. (2004) . Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants. Astrophysical Journal, 601(2 I), 885-895.
http://dx.doi.org/10.1086/380755
---------- CHICAGO ----------
Velázquez, P.F., Martinell, J.J., Raga, A.C., Giacani, E.B. "Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants" . Astrophysical Journal 601, no. 2 I (2004) : 885-895.
http://dx.doi.org/10.1086/380755
---------- MLA ----------
Velázquez, P.F., Martinell, J.J., Raga, A.C., Giacani, E.B. "Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants" . Astrophysical Journal, vol. 601, no. 2 I, 2004, pp. 885-895.
http://dx.doi.org/10.1086/380755
---------- VANCOUVER ----------
Velázquez, P.F., Martinell, J.J., Raga, A.C., Giacani, E.B. Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants. Astrophys. J. 2004;601(2 I):885-895.
http://dx.doi.org/10.1086/380755