Artículo
The dust-enshrouded microquasar candidate AX J1639.0-4642 = IGR J16393-4643
Fecha de publicación:
08/2004
Editorial:
EDP Sciences
Revista:
Astronomy and Astrophysics
ISSN:
0004-6361
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a multiwavelength study of the field containing the unidentified X-ray source AX J1639.0-4642, discovered with the ASCA observatory and recently detected with the IBIS telescope, onboard the INTEGRAL satellite, dubbed IGR J16393-4643. The huge hydrogen column density towards the source, the hard spectral index in the 0.7-10 keV band and its flux variability suggest that the source is a High Mass X-ray Binary (HMXB) enshrouded by dust. Our search reveals the presence of a non-thermal radio counterpart within the X-ray error box. After a study of the broadband emission from X-rays to the radio domain, we propose that AX J1639.0-4642 is a dust-enshrouded Microquasar (MQ) candidate. In addition, the X-ray source is well within the 95% location contour of the unidentified γ-ray source 3EG J1639-4702. The main properties of AX J1639.0-4642/3EG J1639-4702 are consistent with those of two other MQs previously proposed to display high-energy γ-ray emission.
Palabras clave:
Stars
,
Binary Stars
,
Radio Continuum
,
Gamma Ray Observations
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IAR)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Combi, Jorge Ariel; Ribó, Marc; Mirabel Miquele, Igor Felix; Sugizaki, Mutsumi; The dust-enshrouded microquasar candidate AX J1639.0-4642 = IGR J16393-4643; EDP Sciences; Astronomy and Astrophysics; 422; 8-2004; 1031-1037
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