Low luminosity AGN (LLAGN) represent the vast majority of the AGN population in the near universe. However, they show intrinsic differences when compared to the...
Deep narrow-band (Brγ at 2.17μm and H_2 at 2.12μm) and broad-band (JHKs) near-infrared images are presented of the young regions Tr14-N4 and Car I. The...
EMCCD calibration for astronomical imaging: Wide FastCam at the Telescopio Carlos Sánchez
The evident benefits of Electron Multiplying CCDs (EMCCDs) -speed, high sensitivity, low noise and their capability of detecting single photon events whilst...
EMCCD in-situ periodic characterization in Shack-Hartmann wavefront sensor for GTCAO
The Gran Telescopio Canarias Adaptive Optics (GTCAO) will measure the wavefront with a Shack-Hartmann sensor. This wavefront sensor (WFS) is based on the CCD220...
Emergence of magnetic flux in the convection zone. The limits of the thin flux tube approximation.
The thin flux tube approximation cannot describe some important phenomena occurring during the journey of the tubes across the convection zone. This review...
Emergence of magnetThe limits of the thin flux tube approximation
The studies of the emergence of magnetic flux across the convection zone show how the individual magnetic tubes rise toward the surface at the same time...
EMIR and OSIRIS instruments: common data acquisition software architecture
OSIRIS (Optical System for Imaging and low/intermediate-Resolution Integrated Spectroscopy) and EMIR (InfraRed MultiObject Spectrograph) are instruments...
EMIR at the GTC: results on the commissioning at the telescope
We report the results on the EMIR1 (Espectrógrafo Multiobjeto Infra-Rojo) performances after the commissioning period of the instrument at the Gran Telescopio...