The hot X-ray emitting interstellar medium of early type galaxies can be used in principle as a total mass tracer and a tool to determine the stellar orbital anisotropy, based on the hypothesis of hydrostatic equilibrium for it. Here the effects that deviations from equilibrium have on both estimates are shown, and a comparison is made with cases for which accurate optical and X-ray information are available.
X-rays and dynamics / Pellegrini S.. - STAMPA. - 15:(2010), pp. 91-91. (Intervento presentato al convegno XXVII General Assembly of the International Astronomical Union tenutosi a Rio de Janeiro nel August 3-15, 2009) [10.1017/S1743921310008434].
X-rays and dynamics
PELLEGRINI, SILVIA
2010
Abstract
The hot X-ray emitting interstellar medium of early type galaxies can be used in principle as a total mass tracer and a tool to determine the stellar orbital anisotropy, based on the hypothesis of hydrostatic equilibrium for it. Here the effects that deviations from equilibrium have on both estimates are shown, and a comparison is made with cases for which accurate optical and X-ray information are available.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
