Abstract:
We have observed the supernova remnant 3C400.2 with the VLA at 327.5 and 1465 MHz. The images, obtained with an angular resolution better than 1′ and a sensitivity of 1 mJy/beam, show significant new features that suggest that the radio remnant may be formed by two highly symmetrical circular shells that overlap in the northwest. The x-ray emitting region fills the interior of the radio shells, peaking in the region where the radio continuum synchrotron rings overlap. A detailed spatial correlation of optical filaments with the newly discovered radio features is found. Two different scenarios consistent with the observed morphologies are proposed: (a) 3C400.2 is the result of an explosion occurring inside the wind-driven bubble excavated by a massive progenitor star, or (b) the distribution of the emission observed in the different spectral ranges is the signature of two different SN explosions.
Registro:
| Documento: |
Artículo
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| Título: | VLA observations of the supernova remnant 3C400.2 at 327 MHz and 1465 MHz |
| Autor: | Dubner, G.M.; Giacani, E.B.; Goss, W.M.; Winkler, P.F. |
| Filiación: | Inst. Astronomia y Fis. del Espacio, C.C. 67, Suc. 28, 1428 Buenos Aires, Argentina
National Radio Astronomy Observatory, Very Large Array, P.O. Box 0, Socorro, NM 87801, United States
Department of Physics, Middlebury College, Middlebury, VT 05753, United States
CONICET, Argentina
Kitt Peak National Observatory, Natl. Optical Astron. Observatories
Assoc. Universities Res. Astron., I., National Science Foundation
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| Año: | 1994
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| Volumen: | 108
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| Número: | 1
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| Página de inicio: | 207
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| Página de fin: | 213
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| DOI: |
http://dx.doi.org/10.1086/117060 |
| Título revista: | Astronomical Journal
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| Título revista abreviado: | Astron. J.
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| ISSN: | 00046256
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046256_v108_n1_p207_Dubner |
Referencias:
- Agrawal, P.C., Riegler, G.R., Singh, K.P., (1983) Ap&SS, 89, p. 279
- Allakhvcrdiyev, A.O., Guseinov, O.H., Kasvmov, F.K., Yusifov, I.M., (1983) Ap&SS, 97, p. 287
- Arendt, R.G., (1989) ApJS, 70, p. 181
- Arnal, E.M., (1992) A&A, 254, p. 305
- Blair, W.P., Long, K.S., (1988) PASP, 100, p. 461
- Braun, R., Strom, R.G., (1986) A&A, 164, p. 193
- Braun, R., Strom, R.G., (1986) A&A, 164, p. 208
- Caswell, J.L., Lerche, I., (1979) MNRAS, 187, p. 201
- Clark, D.H., Caswell, J.L., (1976) MNRAS, 174, p. 201
- Condon, J.J., Broderick, J.J., (1985) AJ, 90, p. 2540
- Condon, J.J., Broderick, J.J., (1986) AJ, 91, p. 1051
- Cornwell, T.J., Perley, R.A., (1992) A&A, 261, p. 353
- Dickel, J.R., De Noyer, L.K., (1975) AJ, 80, p. 437
- Dubner, G.G.M., Niemela, V.S., Purton, C.R., (1990) AJ, 99, p. 857
- Frail, D.A., Kulkarni, S.R., Vasisht, G., (1993) Nature, , in press
- Goss, W.M., Siddesh, S.G., Schwartz, U.J., (1975) A&A, 43, p. 459
- Holden, D.J., Caswell, J.L., (1969) MNRAS, 143, p. 407
- Huang, Y.-L., Thaddeus, P., (1985) ApJ, 295, pp. L13
- Jones, L.R., (1991) Lecture Notes in Physics, 385, p. 45. , Workshop on Iron Line Diagnostics in X-ray Sources, edited by A. Treves, G. C. Perola, and L. Stella, (Springer, Berlin)
- Landecker, T.L., Vaneldik, J.F., Dewdney, P.E., Routledge, D., (1987) AJ, 94, p. 111
- Leahy, D.A., Venkatesan, D., Long, K.S., Naranan, S., (1985) ApJ, 294, p. 183
- Long, K.S., Blair, W.P., White, R.L., Matsui, Y., (1991) ApJ, 373, p. 567
- Matsui, Y., Long, K.S., (1985) The Crab Nebula and Related Supernova Remnants, p. 211. , edited by M. C. Kafatos and R. B. C. Henry (Cambridge University Press, Cambridge)
- Milne, D.K., (1970) AuJPA, 23, p. 435
- Milne, D.K., (1979) AuJPh, 32, p. 83
- Milne, D.K., Caswell, J.L., Haynes, R.F., Roger, R.S., (1989) Lecture Notes in Physics, 316, p. 98. , Supernova Shells and their Birth Events, edited by W. Kundt, (Springer, Berlin)
- Milne, D.K., Caswell, J.L., Haynes, R.F., (1993) MNRAS, 264, p. 853
- Niemela, V.S., Cappa De Nicolau, C.E., (1991) A&A, 101, p. 572
- Pineault, S., Landecker, T.L., Routledge, D., (1987) ApJ, 315, p. 580
- Pye, J.P., Becker, R.H., Seward, F.D., Thomas, N., (1984) MNRAS, 207, p. 649
- Rosado, M., (1983) RMxA, 8, p. 59
- Reynolds, S.P., Chevalier, R.A., (1981) ApJ, 245, p. 912
- Rózyczka, M., Tenorio-Tagle, G., Franco, J., Bodenheimer, P., (1993) MNRAS, 261, p. 674
- Sabbadin, F., D'Odorico, S., (1976) A&A, 49, p. 119
- Seward, F.D., (1990) ApJS, 73, p. 781
- Smith, A., Jones, L.R., Peavock, A., Pye, J.P., (1985) ApJ, 296, p. 469
- Smith, A., Jones, L.R., Watson, M.G., Willingale, R., Wood, N., Seward, F.D., (1985) MNRAS, 217, p. 99
- Tenorio-Tagle, G., Bodenheimer, P., Franco, J., Rózyczka, M., (1990) MNRAS, 244, p. 563
- Tenorio-Tagle, G., Rózyczka, M., Franco, J., Bodenheimer, P., (1991) MNRAS, 251, p. 318
- Van Den Bergh, S., Marscher, A.P., Terzian, T., (1973) ApJS, 26, p. 19
- Van Den Bergh, S., (1978) ApJS, 38, p. 119
- Velusamy, T., Kundu, M.R., (1974) A&A, 32, p. 375
- Weaver, H., Williams, D.R.W., (1974) A&AS, 17, p. 1
- Weiler, K.W., Panagia, N., (1980) A&A, 90, p. 269
- Willis, A.G., (1973) A&A, 26, p. 237
- Winkler, P.F., Olinger, T.M., Westerbeke, S.A., (1993) ApJ, 405, p. 608
- Wood, C.A., Mufson, S.L., Dickel, J.R., (1991) AJ, 102, p. 224
- Wood, C.A., (1993) PASP, 105, p. 446
Citas:
---------- APA ----------
Dubner, G.M., Giacani, E.B., Goss, W.M. & Winkler, P.F.
(1994)
. VLA observations of the supernova remnant 3C400.2 at 327 MHz and 1465 MHz. Astronomical Journal, 108(1), 207-213.
http://dx.doi.org/10.1086/117060---------- CHICAGO ----------
Dubner, G.M., Giacani, E.B., Goss, W.M., Winkler, P.F.
"VLA observations of the supernova remnant 3C400.2 at 327 MHz and 1465 MHz"
. Astronomical Journal 108, no. 1
(1994) : 207-213.
http://dx.doi.org/10.1086/117060---------- MLA ----------
Dubner, G.M., Giacani, E.B., Goss, W.M., Winkler, P.F.
"VLA observations of the supernova remnant 3C400.2 at 327 MHz and 1465 MHz"
. Astronomical Journal, vol. 108, no. 1, 1994, pp. 207-213.
http://dx.doi.org/10.1086/117060---------- VANCOUVER ----------
Dubner, G.M., Giacani, E.B., Goss, W.M., Winkler, P.F. VLA observations of the supernova remnant 3C400.2 at 327 MHz and 1465 MHz. Astron. J. 1994;108(1):207-213.
http://dx.doi.org/10.1086/117060
