Bibcode
Weidner, C.; Kroupa, P.; Pflamm-Altenburg, J.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 434, Issue 1, p.84-101
Advertised on:
9
2013
Número de citas
89
Número de citas referidas
80
Descripción
We introduce a new method to measure the dispersion of mmax
values of star clusters and show that the observed sample of
mmax is inconsistent with random sampling from a universal
stellar initial mass function (IMF) at a 99.9 per cent confidence level.
The scatter seen in the mmax-Mecl data can be
mainly (76 per cent) understood as being the result of observational
uncertainties only. The scatter of mmax values at a given
Mecl is consistent with mostly being measurement
uncertainties such that the true (physical) scatter may be very small.
Additionally, new data on the local star-formation regions Taurus-Auriga
and L1641 in Orion make stochastically formed stellar populations rather
unlikely. The data are however consistent with the local integrated
galactic stellar initial mass function theory according to which a
stellar population is a sum of individual star-forming events each of
which is described by well-defined physical laws. Randomly sampled IMFs
and henceforth scale-free star formation seems to be in contradiction to
observed reality.
Proyectos relacionados
![TRACES Miembros del grupo](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/image.png?h=bdabf5b0&itok=05E6Kg4w)
Huellas de la Formación de las Galaxias: Poblaciones estelares, Dinámica y Morfología
Bienvenida a la página web del g rupo de investigación Traces of Galaxy Formation. Somos un grupo de investigación amplio, diverso y muy activo cuyo objetivo principal es entender la formación de galaxias en el Universo de una manera lo más completa posible. Con el estudio detellado de las poblaciones estelares como bandera, estamos constantemente
Ignacio
Martín Navarro