Artículo
The neutral gas in the environs of the Geminga gamma-ray pulsar
Giacani, Elsa Beatriz
; Reynoso, Estela Marta
; Dubner, Gloria Mabel
; Goss, W. M.; Green, A. J.; Johnston, S.
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Fecha de publicación:
04/2005
Editorial:
Elsevier
Revista:
Advances in Space Research
ISSN:
0273-1177
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a high-resolution (2400) study of the HI interstellar gas distribution around the radio-quiet neutron star Geminga. Based on very large array and MPIfR Effelsberg telescope data, we analyzed a 400 · 400 field around Geminga. These observations have revealed the presence of a neutral gas shell, 0.4 pc in radius, with an associated HI mass of 0.8Mx, which surrounds Geminga at a radial velocity compatible with the kinematical distance of the neutron star. In addition, morphological agreement is observed between the internal face of the HI shell and the brightest structure of Geminga s tail observed in X-rays. We explore the possibility that this morphological agreement is the result of a physical association.
Palabras clave:
Hi Interstellar Gas Distribution
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Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Giacani, Elsa Beatriz; Reynoso, Estela Marta; Dubner, Gloria Mabel; Goss, W. M.; Green, A. J.; et al.; The neutral gas in the environs of the Geminga gamma-ray pulsar; Elsevier; Advances in Space Research; 35; 6; 4-2005; 1070-1073
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