Elements with weak or blended lines are typically challenging to measure with the standard pipelines of spectroscopic surveys because these lines require a special treatment to measure precise chemical abundances. However, measuring the abundances of additional elements can open up opportunities to study a variety of topics from nuclear physics to

Examination of emission lines in high-velocity-resolution optical spectra of the Orion Nebula confirms that the velocity component on the red wing of the main ionization front emission line is due to backscattering in the Photon Dominated Region. This scattered light component has a weak wavelength dependence that is consistent with either general

In this work we present the design of the ATLAS (Asteroid Terrestrial-impact Last Alert System) unit that will be installed at Teide Observatory in Tenerife island (Spain). ATLAS-Teide will be built by the IAC and will operated as part of the ATLAS network in the framework of an operation and science exploitation agreement between the IAC and the

Overwhelming observational evidence suggests that 85% of all the matter in the universe is dark matter, a particle whose microscopic properties remain poorly constrained over many orders of magnitude. The current, widely assumed standard paradigm of a collisionless, cold dark matter (CDM) and dark energy cosmology called ΛCDM has proven to be very

Context. Observational and instrumental difficulties observing small bodies below 0.5 μm make this wavelength range poorly studied compared with the visible and near-infrared. Furthermore, the suitability of many commonly used solar analogues, essential in the computation of asteroid reflectances, is usually assessed only in visible wavelengths

A variety of Prehistoric dry-stone monuments are ubiquitous in Western Sahara, a region delimited by the boundaries of the former Spanish colony. With either burial or ritual functions, these monuments are spread throughout the Sahara Desert creating sacred landscapes and housing the memory of millennia of occupation. Previous research has explored