Espectroscopía integrada de los cúmulos abiertos NGC 5606 y van den Bergh 80

AHUMADA, A.V.; CLARIA OLMEDO, JUAN JOSÉ; BICA, EDUARDO; DUTRA, C; PIATTI, ANDRÉS E.

Tucumán

Congreso; Reunión Anual de la Asoc. Argentina de Astronomía; 2000

We present results obtained from applying integrated spectroscopy technique to the study of two galactic open clusters: NGC 5606 and van den Bergh 80, both observed at CASLEO (San Juan) with the REOSC spectrograph in the simple dispersion mode. Based on measurements of equivalent widths of Balmer lines, and comparing the observed spectra with those of template spectra, we derive ages between 3 and 6 Myr for these objects. The integrated spectrum of NGC 5606, together with previous determinations of E(B-V) colour excess in this cluster, allow us to estimate a lower limit of ≈ 0.2 mag to the internal reddening.