Bibcode
Garcia, Miriam; Herrero, Artemio; Castro, Norberto; José Corral, Luis
Referencia bibliográfica
Société Royale des Sciences de Liège, Bulletin, vol. 80, p. 381-385 (Proceedings of the 39th Liège Astrophysical Colloquium, held in Liège 12-16 July 2010, edited by G. Rauw, M. De Becker, Y. Nazé, J.-M. Vreux, P. Williams)
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1
2011
Número de citas
2
Número de citas referidas
2
Descripción
The important role of metallicity on massive star evolution and the
combination of multi-object spectrographs and 10m class telescopes, have
lead to numerous systematic studies of massive stars in Local Group
galaxies. While color based quests of blue massive stars are relatively
successful, they must be confirmed with spectroscopy and usually lead to
lists dominated by B-type modest-mass stars. We have developed a friends
of friends code to find OB associations in Local Group galaxies,
presented in Garcia et al. (2009). One of the key points of the method
is the photometric criterion to choose candidate OB stars from the
reddening-free Q parameter, that could be easily extended to include
from GALEX to near-IR photometry. While not a new idea, one of our
code's strong advantages is the automatic determination of evolutionary
masses for the members, enabling a quick and more insightful choice of
candidates for spectroscopy, and the identification of potential
advanced evolutionary stages. We present our work on the very metal-poor
irregular galaxy IC 1613 (Garcia et al. 2010a). The association
properties are not only a powerful aid towards finding the most
interesting candidate massive stars, but also reveal the galaxy's
structure and recent star formation history.