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| DOI | 10.1088/2041-8205/728/1/L23 | ||||
| Año | 2011 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We investigate the distribution of bright main-sequence stars near the northern edge of the M33 disk. Clustering on sub-kiloparsec scales is seen among stars with ages similar to 10 Myr, and two large star-forming complexes are identified. Similar large-scale grouping is not evident among stars with ages 100 Myr. Stars of this age are also distributed over a much larger area than those with younger ages, and it is argued that random stellar motions alone, as opposed to orderly motions of the type spurred by large-scale secular effects, can re-distribute stars out to distances of at least 2 kpc (i.e., one disk scale length) from their birthplaces on 100 Myr timescales. Such random motions may thus play a significant role in populating the outer regions of the M33 disk. Finally, it is suggested that-to the extent that the ambient properties of the outer disk mirror those in the main body of the disk-stars in this part of M33 may have formed in star clusters with masses 50-250 M-circle dot, which is substantially lower than the peak predicted for the solar neighborhood initial cluster mass function.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Davidge, Timothy J. | Hombre |
Natl Res Council Canada - Canadá
National Research Council Canada - Canadá |
| 2 | Puzia, Thomas H. | Hombre |
Natl Res Council Canada - Canadá
Pontificia Universidad Católica de Chile - Chile Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile National Research Council Canada - Canadá |
| 3 | McConnachie, Alan | Hombre |
Natl Res Council Canada - Canadá
National Research Council Canada - Canadá |
| Fuente |
|---|
| Centre National de la Recherche Scientifique |
| National Research Council Canada |
| University of Hawai'i |
| Institut national de la recherche scientifique |
| CEA/DAPNIA |
| Agradecimiento |
|---|
| ∗ Based on observations obtained with MegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA, at the Canada–France–Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l’Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. |