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Dubner, G.M.; Gaensler, B.M.; Giacani, E.B.; Goss, W.M.; Green, A.J. "The interstellar medium around the supernova remnant G320.4-1.2" (2002) Astronomical Journal. 123(1 1753):337-345
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Abstract:

Using the Australia Telescope Compact Array, we have carried out a survey of the H I emission in the direction of the barrel-shaped supernova remnant (SNR) G320.4-1.2 (MSH 15-52) and its associated young pulsar B1509-58. The angular resolution of the data is 4.′0 × 2.′7, and the rms noise is of order 30 mJy beam-1 (∼0.5 K). The H I observations indicate that the north-northwest radio limb has encountered a dense H I filament (density ∼12 cm-3) at the same LSR velocity as that of the SNR (VLSR ∼ -68 km s-1). This H I concentration would be responsible for the flattened shape of the northwestern lobe of G320.4-1.2 and for the formation of the radio-optical-X-ray nebula RCW 89. The emission associated with the bright knots in the interior of RCW 89 can be explained as arising from the interaction between the collimated relativistic outflow from the pulsar and the denser part of this H I filament (density ∼15 cm-3). The south-southeastern half of the SNR, on the other hand, seems to have rapidly expanded across a lower density environment (density ∼0.4 cm-3). The H I data also reveal an unusual H I feature aligned with a collimated outflow generated by the pulsar, suggestive of association with the SNR, The anomalous kinematical velocity of this feature (VLSR ∼ 15 km s-1), however, is difficult to explain.

Registro:

Documento: Artículo
Título:The interstellar medium around the supernova remnant G320.4-1.2
Autor:Dubner, G.M.; Gaensler, B.M.; Giacani, E.B.; Goss, W.M.; Green, A.J.
Filiación:Inst. Astron./Fis. Espacio, C.C. 67, 1428 Buenos Aires, Argentina
Carrera del Investigador Cie., CONICET, Buenos Aires, Argentina
Center for Space Research, Massachusetts Inst. of Technology, 70 Vassar Street, Cambridge, MA 02139, United States
Harvard-Smithonian Ctr. Astrophys., 60 Garden Street, Cambridge, MA 02138, United States
National Radio Astronomy Observatory, P.O. Box O, Socorro, NM 8780, United States
School of Physics, University of Sydney, Sydney, NSW 2006, Australia
Palabras clave:ISM: individual (G320.4-1.2, RCW 89); ISM: structure; Pulsars: individual (B1509-58) supernova remnants
Año:2002
Volumen:123
Número:1 1753
Página de inicio:337
Página de fin:345
DOI: http://dx.doi.org/10.1086/324736
Título revista:Astronomical Journal
Título revista abreviado:Astron. J.
ISSN:00046256
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046256_v123_n11753_p337_Dubner

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Citas:

---------- APA ----------
Dubner, G.M., Gaensler, B.M., Giacani, E.B., Goss, W.M. & Green, A.J. (2002) . The interstellar medium around the supernova remnant G320.4-1.2. Astronomical Journal, 123(1 1753), 337-345.
http://dx.doi.org/10.1086/324736
---------- CHICAGO ----------
Dubner, G.M., Gaensler, B.M., Giacani, E.B., Goss, W.M., Green, A.J. "The interstellar medium around the supernova remnant G320.4-1.2" . Astronomical Journal 123, no. 1 1753 (2002) : 337-345.
http://dx.doi.org/10.1086/324736
---------- MLA ----------
Dubner, G.M., Gaensler, B.M., Giacani, E.B., Goss, W.M., Green, A.J. "The interstellar medium around the supernova remnant G320.4-1.2" . Astronomical Journal, vol. 123, no. 1 1753, 2002, pp. 337-345.
http://dx.doi.org/10.1086/324736
---------- VANCOUVER ----------
Dubner, G.M., Gaensler, B.M., Giacani, E.B., Goss, W.M., Green, A.J. The interstellar medium around the supernova remnant G320.4-1.2. Astron. J. 2002;123(1 1753):337-345.
http://dx.doi.org/10.1086/324736