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Observations of the planetary nebula RWT 152 with OSIRIS/GTC
A. Aller, L. F. Miranda, L. Olguín +2
RWT 152 is one of the few known planetary nebulae with an sdO central star. We present subarcsecond red tunable filter Halpha imaging and intermediate-resolution, long-slit spectro…
On the estimation of stellar parameters with uncertainty prediction from Generative Artificial Neural Networks: application to Gaia RVS simulated spectra
C. Dafonte, D. Fustes, M. Manteiga +4
Aims. We present an innovative artificial neural network (ANN) architecture, called Generative ANN (GANN), that computes the forward model, that is it learns the function that rela…
A search for new hot subdwarf stars by means of Virtual Observatory tools II
Esther Pérez-Fernández, Ana Ulla, Enrique Solano +2
Recent massive sky surveys in different bandwidths are providing new opportunities to modern astronomy. The Virtual Observatory (VO) represents the adequate framework to handle the…