SEA special issue

  • Editorial

    Alberto Fernández Soto. Institute of Physics of Cantabria

    This issue of the Bulletin of the Spanish Astronomical Society (SEA) hosts for the first time a special edition dedicated to one project: the ALHAMBRA survey. As the Bulletin is published, once again coinciding with the summer solstice, the first …

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  • The ALHAMBRA Project

    Mariano Moles. ALHAMBRA Project Main Researcher. CEFCA, IAA/CSIC

    ALHAMBRA (Advanced Large Homogeneous Area Medium Band Redshift Astronomical Survey) was set up as a systematic study of cosmic evolution and variance. As a result of the observation strategy, a photometric mapping using medium band filters, the da …

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  • Pipelines and ALHAMBRA photometrics.

    Jaime Perea, Institut of Astrophysics of Andalusia
    David Cristóbal, Centre for Studies of Physics of the Cosmos of Aragón

    Work on observations in Astronomy does not finish when the night ends and the telescope shuts down. An important stage remains, on which the quality of the data that we obtain and the resultant science critically depends: namely, data reduction an …

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  • The Milky Way from ALHAMBRA

    Emilio J. Alfaro
    Respresenting ALHAMBRA Stelar Team
    CSIC / Institute of Astrophysics of Andalusia

    What is a galactic astronomer doing in an extragalactic survey? Lots of things, including dissemination. Spreading the good news that the Galaxy and galaxies are just the different scales of the same phenomena seen from different viewpoints. If th …

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  • Photometric redshifts

    Alberto Molino
    CSIC / Institute of Astrophysics of Andalusia

    The energy emitted by an astronomical source as a function of the wavelength is called Spectral Energy Distribution (SED). These spectral distributions enable us to classify galaxies depending on their stellar content (what type of stars), and als …

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  • Cosmic variance

    Carlos López San Juan
    Centre for Studies of Physics of the Cosmos of Aragón

    One of the main starting assumptions in current cosmological research is that “the Universe is homogeneous and isotropic.” From here, the equations of General Relativity, gravity and Dark Energy determine the evolution of the Universe …

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  • Morphological Classification Of The Galaxies Of The Alhambra Survey

    Mirjana Povic
    CSIC / Institute of Astrophysics of Andalusia

    Galaxies exhibit a variety of forms, and present different components that are reflection of their physical properties: bulges, discs, halos, bars, spiral arms, tails, rings, etc. The morphological classification of galaxies organises the galaxies …

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  • Stellar Populations In Galaxies Of The First Types

    Luis A. Díaz-García
    Centre for Studies of Physics of the Cosmos of Aragón.

    The light of evolved galaxies that we observed is composed almost entirely by the superposition of light emitted from the different populations of stars that compose them. In massive galaxies of the first types (generally old and red), most of the …

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  • Distribution Functions

    Alberto Fernández Soto
    Institute of Physics of Cantabria

    With a sample of galaxies for which we know the distance from earth, it is possible to measure which proportions appear depending on their basic properties, such as luminosity or stellar mass. Having also morphological, spectral, or density inform …

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  • Galaxy Clusters In Alhambra

    Begoña Ascaso
    CSIC / Institute of Astrophysics of Andalusia

    Galaxy clusters are the most massive objects existing in the Universe. With masses ranging from 1014 to several times 1015 MQ and that can reach up to 3-4 x1013 MQ in the case of the smallest structures (called groups of galaxies), these objects i …

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    Israel Matute Troncoso
    CSIC / Institut of Astrophysics of Andalusia

    The cosmological significance of supermassive black holes (SMBH), with M ~ 106-109 MQ, has multiplied in the last 15 years. Their presence in the centre of all massive galaxies in the local universe, as well as the correlations found between the b …

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  • Extremely Red Objects In ALHAMBRA

    Lorena Nieves
    Institute of Physics of Cantabria / Astronomical Observatory of the University of Valencia

    In 1988 American astronomers Richard Elston and George and Marcia Rieke published a paper in which the discovery of a small population of galaxies that had not been previously detected was made public to the scientific community. These objects exh …

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  • ALHAMBRA gold sample

    The publication of this special issue of the SEA Bulletin is a good opportunity to announce the first release of the ALHAMBRA data, initially intended for the ALHAMBRA Extended Team, which includes many of the SEA members and readers of this Bulle …

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