[Alumnos] HOY 13 hs. Seminario - Lic. Lucía Rizzo

[Secretaría de Ciencia y Técnica]

*Estimados,

Les recordamos que hoy tendremos *el siguiente Seminario *a las 
1*3*:*0*0 hs. en el Salón Meridiano. Los esperamos 15 minutos antes de 
l*a**Charla*con café y galletitas.

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Secretaría de Ciencia y Técnica
FCAG*

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***Seminario: Lic. Lucía Rizzo (IALP - FCAG)***

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Título: Extended UBVI photometric survey including the region of 
Trumpler 24 in Scorpius OB1 Association.


Resumen: We have carried out a very extended UBVI photometric survey 
covering over 1 square degree in the Scorpius OB1 Association in order 
to clarify the true nature of the potential open clusters associated. In 
fact, a number of stellar overdensities have been classified as open 
cluster candidates in the region of our interest: ESO332-08, ESO332-11, 
ESO332-13, van den Bergh-Hagen 205, van den Bergh-Hagen 202 and Trumpler 24.

However the parameters of all these objects remain unknown or have been 
poorly determined on the basis of not so deep previous photometry. 
Indeed some of these clusters appear, in the literature, as superimposed 
objects or sharing a same location.

We present first results including stars down to V=19-20 mag that reveal 
the presence of three large blue stars concentration for which we are 
able to give their fundamental parameters. In addition we notice the 
presence of several blue very faint stars that are probably white dwarf 
stars.

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