Context. K-means is a clustering algorithm that has been used to classify large datasets in astronomical databases. It is an unsupervised method, able to cope...
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PublicationA fast version of the k-means classification algorithm for astronomical applications
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PublicationAbundances, Stellar Parameters, and Spectra from the SDSS-III/APOGEE Survey
The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011–2014 using the APOGEE spectrograph, which collects high...
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PublicationAutomated Unsupervised Classification of the Sloan Digital Sky Survey Stellar Spectra using k-means Clustering
Large spectroscopic surveys require automated methods of analysis. This paper explores the use of k-means clustering as a tool for automated unsupervised...
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PublicationAutomatic spectral classification of stellar spectra with low signal-to-noise ratio using artificial neural networks
Context. As part of a project aimed at deriving extinction-distances for thirty-five planetary nebulae, spectra of a few thousand stars were analyzed to...
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PublicationCARMENES input catalogue of M dwarfs. V. Luminosities, colours, and spectral energy distributions
Context. The relevance of M dwarfs in the search for potentially habitable Earth-sized planets has grown significantly in the last years. Aims: In our on-going...
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PublicationDozens of virtual impactor orbits eliminated by the EURONEAR VIMP DECam data mining project
Context. Massive data mining of image archives observed with large etendue facilities represents a great opportunity for orbital amelioration of poorly known...
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PublicationEURONEAR: Data mining of asteroids and Near Earth Asteroids
Besides new observations, mining old photographic plates and CCD image archives represents an opportunity to recover and secure newly discovered asteroids, also...
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PublicationHigh-resolution Hα imaging of the northern Galactic plane and the IGAPS image database
The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys IPHAS and UVEX based on data from the Isaac Newton Telescope (INT)...
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PublicationIdentification of red high proper-motion objects in Tycho-2 and 2MASS catalogues using Virtual Observatory tools
Aims: With available Virtual Observatory tools, we looked for new M dwarfs in the solar neighbourhood and M giants with high tangential velocities. Methods...