Artículo
IGR J17544-2619: a new supergiant fast X-ray transient revealed by optical/infrared observations
Fecha de publicación:
08/2006
Editorial:
Edp Sciences
Revista:
Astronomy And Astrophysics
ISSN:
0004-6361
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
One of the most recent discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. IGR J17544-2619, IGR J16465-4507 and XTE J1739-302 are among these sources. Although the nature of these systems is still unexplained, the investigations of the optical/NIR counterparts of the two last sources, combined with high energy data, have provided evidence of them being highly absorbed high mass X-ray binaries with blue supergiant secondaries and displaying fast X-ray transient behaviour. In this work we present our optical/NIR observations of IGR J17544-2619, aimed at identifying and characterizing its counterpart. We show that the source is a high mass X-ray binary at a distance of 2-4 kpc with a strongly absorbed O9Ib secondary, and discuss the nature of the system.
Palabras clave:
X-Rays: Binaries
,
X-Rays: Individual: Igr J17544-2619
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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
Pellizza González, Leonardo Javier; Chaty, S.; Negueruela, I.; IGR J17544-2619: a new supergiant fast X-ray transient revealed by optical/infrared observations; Edp Sciences; Astronomy And Astrophysics; 455; 2; 8-2006; 653-658
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