The missing goliath's slingshot : massive black hole recoil at M83

• Autor(a) principal: Dottori, Horacio Alberto
• Data de Publicação: 2010
• Outros Autores: Díaz, Rubén Joaquín, Albacete Colombo, Juan Facundo, Mast, Damián
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/108986
• topic: Buracos negros; Nucleo galatico; Discos de acrecao; Galáxia M83; Galaxies: evolution; Galaxies: individual (M 83); Galaxies: kinematics and dynamics; Galaxies: nuclei; X-rays: individual (J 133658.3−295105)

The Fanaroff–Riley II radio source J133658.3−295105, which is also an X-ray source, appears to be projected onto the disk of the barred-spiral galaxy M83 at about 60" from the galaxy’s optical nucleus. J133658.3−295105 and its radio lobes are aligned with the optical nucleus of M83 and two other radio sources, neither of which are supernova remnants or H II regions. Due to this peculiar on-the-sky projection, J133658.3−295105 was previously studied by Gemini+GMOS optical spectroscopy, which marginally revealed the presence of Hα in emission receding at 130 km s-ˡ with respect to the optical nucleus. In this Letter, we reanalyze the Chandra spectroscopy carried out in 2000. We show that J133658.3−295105 presents an Fe Kα emission line at a redshift of z = 0.018. This redshift is compatible with a black hole at the distance of M 83. We discuss similarities to the recently reported micro-quasar in NGC 5408. This finding reinforces the kicked-off black hole scenario for J133658.3−295105.