INVESTIGADORES
PELLIZZA GONZALEZ Leonardo Javier
congresos y reuniones científicas
Título:
Stellar feedback from black-hole high-mass X-ray binaries in galaxy formation models
Autor/es:
ARTALE, M.C.; TISSERA, P.B.; PELLIZZA, L.J.
Lugar:
Florianópolis
Reunión:
Congreso; XIV Latin American Regional IAU Meeting; 2013
Institución organizadora:
UFSC
Resumen:
In recent years, many works have suggested the role of black-hole
high-mass X-ray binaries (BH-HMXB) as potential sources of heating and
re-ionization in the interstellar and intergalactic medium. Furthermore,
because of the suggested increase of their production rate and X-ray
luminosity with decreasing metallicity, BH-HMXBs could be relevant to
explain the thermal and ionization history of the Universe at its early
stages. As observations indicate, a meaningful amount of the energy
released by these sources could be deposited in the local interstellar
medium, suggesting that BH-HMXB could modify star forming regions on the
host galaxy. In this work, we study the kinetic BH-HMXB feedback using
hydrodynamical cosmological simulations which also include SNe feedback.
Our preliminary results suggest that BH-HMBXs feedback is not efficient
at modifying the star formation activity. However, due the complexity of
the problem and the wide dynamical range needed to describe properly
different physical events, there are still different schemes to explore.
In the future, we will study the role of BH-HMXBs in high numerical
resolution simulations at high redshifts, and how the energy is released
into the interstellar medium.