In this paper, the present status of the development of the design of the European Solar Telescope is described. The telescope is devised to have the best...
OSIRIS, the main optical (360-1000nm) 1st-generation instrument for GTC, is being integrated. Except for some grisms and filters, all main optical components...
Experimental validation of Lyot stop apodization in ground-based coronagraphy
We show that the use of apodizing functions at the coronagraph Lyot plane may be useful for improving the image contrast of ground-based coronagraphs. An...
Exploitation of CanariCam: Opening new windows for spanish astrophysics
CanariCam is the Day One mid-infrared imager for the Spanish 10 m Gran Telescopio Canarias (GTC). With its multimode options that allow spectroscopy...
Fast infrared winds during the radio-loud and X-ray obscured stages of the black hole transient GRS 1915+105
The black hole transient GRS 1915+105 entered a new phase of activity in 2018, generally characterised by low X-ray and radio fluxes. This phase has only been...
First fringes with an integrated-optics beam combiner at 10 μm. A new step towards instrument miniaturization for mid-infrared interferometry
Context. Observations of milliarcsecond-resolution scales and high dynamic range hold a central place in the exploration of distant planetary systems in order...
First Observation of the Submillimeter Polarization Spectrum in a Translucent Molecular Cloud
Polarized emission from aligned dust is a crucial tool for studies of magnetism in the ISM, but a troublesome contaminant for studies of cosmic microwave...
First performance of the GeMS + GMOS system - 1. Imaging
During the commissioning of the Gemini MCAO System (GeMS), we had the opportunity to obtain data with the Gemini Multi-Object Spectrograph (GMOS), the most...
First Results from the Hertzsprung SONG Telescope: Asteroseismology of the G5 Subgiant Star μ Herculis
We report the first asteroseismic results obtained with the Hertzsprung Stellar Observations Network Group Telescope from an extensive high-precision radial...