MG12 - Talk detail |
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Participant |
Fuentes-Carrera, Isaura | |
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Institution |
Escuela Superior de Fisica y Matematicas, Instituto Politecnico Nacional (ESFM-IPN) - Edificio 9, U.P. Adolfo Lopez Mateos - Mexico City - - Mexico | |
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Session |
Talk |
Abstract |
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APT1 |
Tracing the optical imprints of an intermediate-mass black hole candidate in an interacting galaxy pair. |
Ultra-luminous X-ray sources (ULXs) are off-nuclear X-ray sources with X-ray luminosities ~10^{40} ergs/s. ULXs lie between classic X-ray binaries and AGN and their nature is still unclear. Current models include intermediate-mass (~50 solar masses) black holes, IMBH, and significantly beamed binary systems. We present observations of the extended optical counterpart of the bright,elongated ULX in the interacting galaxy pair NGC 5953/54 using the FLAMES-GIRAFFE integral field spectrograph on the VLT. We describe spectroscopical and spatial information of the surroundings of this ULX and analyse their kinematics and the nature of the ionization of the gas in order to distinguish between two possible scenarios: beamed emission from a stellar-mass black hole binary or isotropically emitting IMBH objects. |