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Abstract:

In this work we investigate the accretion of cosmological fluids on to an intermediate-mass black hole at the centre of a globular cluster, focusing on the influence of the parent stellar system on the accretion flow. We show that the accretion of cosmic background radiation and the so-called dark energy on to an intermediate-mass black hole is negligible. On the other hand, if cold dark matter has a non-vanishing pressure, the accretion of dark matter is large enough to increase the black hole mass well beyond the present observed upper limits. We conclude that either intermediate-mass black holes do not exist, or dark matter does not exist, or it is not strictly collisionless. In the latter case, we set a lower limit for the parameter of the cold dark matter equation of state. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.

Registro:

Documento: Artículo
Título:Dark matter and dark energy accretion on to intermediate-mass black holes
Autor:Pepe, C.; Pellizza, L.J.; Romero, G.E.
Filiación:Instituto de Astronomía y Física del Espacio, Casilla de Correo 67, Suc. 28, 1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Rivadavia 1917, C1033 AAJ, Buenos Aires, Argentina
Instituto Argentino de Radioastronomía, C.C.S., 1894 Villa Elisa, Pcia. de Buenos Aires, Argentina
Palabras clave:Accretion, accretion discs; Black hole physics; Globular clusters: general
Año:2012
Volumen:420
Número:4
Página de inicio:3298
Página de fin:3302
DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.20252.x
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v420_n4_p3298_Pepe

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Citas:

---------- APA ----------
Pepe, C., Pellizza, L.J. & Romero, G.E. (2012) . Dark matter and dark energy accretion on to intermediate-mass black holes. Monthly Notices of the Royal Astronomical Society, 420(4), 3298-3302.
http://dx.doi.org/10.1111/j.1365-2966.2011.20252.x
---------- CHICAGO ----------
Pepe, C., Pellizza, L.J., Romero, G.E. "Dark matter and dark energy accretion on to intermediate-mass black holes" . Monthly Notices of the Royal Astronomical Society 420, no. 4 (2012) : 3298-3302.
http://dx.doi.org/10.1111/j.1365-2966.2011.20252.x
---------- MLA ----------
Pepe, C., Pellizza, L.J., Romero, G.E. "Dark matter and dark energy accretion on to intermediate-mass black holes" . Monthly Notices of the Royal Astronomical Society, vol. 420, no. 4, 2012, pp. 3298-3302.
http://dx.doi.org/10.1111/j.1365-2966.2011.20252.x
---------- VANCOUVER ----------
Pepe, C., Pellizza, L.J., Romero, G.E. Dark matter and dark energy accretion on to intermediate-mass black holes. Mon. Not. R. Astron. Soc. 2012;420(4):3298-3302.
http://dx.doi.org/10.1111/j.1365-2966.2011.20252.x