[Graduados] Miércoles 16/10 Seminario FCAG "Stellar populations and emission lines in S-PLUS : Method & applications" - Dr. Roberto Cid Fernandes (Universidade Federal de Santa Catarina, Brasil)

[Secretaría de Ciencia y Técnica]

Buenos días,

les informamos que este *miércoles 16 a las 13h*, se brindará el 
Seminario FCAG *"Stellar populations and emission lines in S-PLUS : 
Method & applications"*, en el Salón Meridiano. El mismo estará a cargo 
del *Dr. Roberto Cid Fernandes (Universidade Federal de Santa Catarina, 
Brasil), *profesor invitado por la**Dra. Analía Smith Castelli (Grupo 
ALAS). A continuación, les dejamos el resumen y los datos de conexión 
para aquellos que no puedan acercarse al Salón Meridiano.

Resumen: We present the method we have developed to simultaneously 
estimate stellar population and emission line (EL) properties of 
galaxies out of S-PLUS photometry. The method uses the AlStar code, 
modified to incorporate an empirical prior which greatly improves its 
ability to estimate ELs using only the survey's 12 bands. This is 
confirmed by extensive tests where we compare the code’s output with 
stellar properties derived from full spectral fitting and detailed EL 
analysis of SDSS galaxy spectra. We find that stellar properties are 
recovered to better than 0.2 dex in masses, mean ages, metallicities and 
+/-0.2 mag for the extinction. Moreover, ELs are recovered  remarkably 
well for a photometric survey, with input minus output dispersions of 
0.05-0.2 dex for the equivalent widths of [OII], [OIII], Hbeta, 
Halpha [NII] and [SII], and even better for lines stronger than ~ 5 A.

Example applications to integrated light and spatially resolved data are 
also presented, including a comparison with independent results obtained 
with MUSE-based integral field spectroscopy. Initial results of an 
analogous project which combines S-PLUS and MUSE observations will also 
be shown.


Datos de conexión:

Unirse a la reunión zoom: https://us02web.zoom.us/j/89642687970
ID de reunión: 896 4268 7970
Código de acceso: 526656

A fin de reducir el uso de residuos plásticos, les solicitamos que se 
acerquen con sus propias tazas para el café.
Aunque este seminario será en formato híbrido, esperamos contar con su 
presencia.


Saludos,

SeCyT-FCAG

-- 
Secretaría de Ciencia y Técnica
Facultad de Ciencias Astronómicas y Geofísicas
Horario de atención: lunes a viernes de 8hs a 15hs
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