An empirical spectral library of chemically well characterized stars for stellar population modelling
With the goal of assembling a new generation of more realistic single stellar population (SSP) models, we have obtained magnesium abundances for nearly 80% of...
An Enigmatic High Excitation Nebula in IC 1613 Dwarf Galaxy
We report the serendipitous discovery of a high-excitation nebula in the Local Group dwarf galaxy IC 1613. The nebula shows spectral features typical of a...
An estimate of anthropogenic carbon into the north east Atlantic between Scotland and Iceland
The uptake of anthropogenic CO2 by the oceans since the industrial revolution is considered to have considerably buffered atmospheric CO2 increases and thereby...
An Explanation For Large-amplitude Longitudinal Oscillations In Prominences
Large amplitude longitudinal (LAL) oscillations, consisting of periodic motions of prominence material along a filament axis, are rare but quite dramatic. The...
An exploration of Cygnus OB2 and perspectives for the upcoming WEAVE High-Resolution Cygnus Survey
During the last years we have carried out different studies in the Cygnus OB2 association based on new spectroscopic data and benefiting from the unprecedented...
The importance of the study of Planetary Nebulae (PNe) in our Galaxy and in external galaxies is outlined, with the aim of highlighting how the combined study...
An External Perspective of a Stellar Tidal Stream: Fossils of the Hierarchical Formation of the Nearby Spiral Galaxy NGC~5907
We present with outstanding detail an extragalactic perspective of an extended stellar tidal stream wrapping around the edge-on, spiral galaxy NGC 5907. Our...