Astrophysical: Astronomical databases

  • Publication
    A fast version of the k-means classification algorithm for astronomical applications

    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...

  • Publication
    Abundances, 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...

  • Publication
    Automated 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...

  • Publication
    Automatic 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...

  • Publication
    CARMENES 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...

  • Publication
    Dozens 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...

  • Publication
    EURONEAR: 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...

  • Publication
    High-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)...

  • Publication
    Identification 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...