Spectroscopic study of the B[e] supergiant LHA 120-S 35

TORRES A. F.; OKSALA M. E.; CIDALE L. S.; KRAUS M.; BORGES FERNANDES M.; BARBÁ R.

Mar del Plata

Congreso; 55 Reunión Anual de la Asociación Argentina de Astronomía; 2012

Asociación Argentina de Astronomía

LHA 120-S 35 is a poorly studied supergiant of the Large Magellanic Cloud which displays the B[e] phenomenon. In this work, we present a spectroscopic description of this star based on high-resolution optical spectra (3600 to 9200 A), taken with the Du Pont Telescope at Las Campanas Observatory (LCO), Chile. In addition, we obtained medium resolution K-band near infrared spectra for this object with SINFONI on the VLT UT4 telescope at the European Southern Observatory (ESO). The near infrared spectra show strong CO band emission. This is the first detection of molecular emission in this peculiar star.