Astrofísicas: Cosmología

  • Publicación
    A far-infrared view of the Lockman Hole from ISO 95-μm observations - I. A new data reduction method
    We report results from a new analysis of a deep 95-μm imaging survey with the photopolarimeter ISOPHOT on-board the Infrared Space Observatory, over a 40 × 40...
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    A Fast and Very Accurate Approach to the Computation of Microlensing Magnification Patterns Based on Inverse Polygon Mapping
    A new method of calculating microlensing magnification patterns is proposed that is based on the properties of the backward gravitational lens mapping of a...
  • Publicación
    A First Glimpse Into the Far-IR Properties of High-z UV-selected galaxies: Herschel/PACS Observations of z ~ 3 LBGs
    We present first insights into the far-IR properties for a sample of IRAC and MIPS 24 μm detected Lyman break galaxies (LBGs) at z ~ 3, as derived from...
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    A galaxy-driven model of type Ia supernova luminosity variations
    Type Ia supernovae (SNe Ia) are used as standardizable candles to measure cosmological distances, but differences remain in their corrected luminosities which...
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    A journey from the outskirts to the cores of groups. I. Color- and mass-segregation in 20K-zCOSMOS groups
    Context. Studying theevolution of galaxies located within groups may have important implications for our understanding of the global evolution of the galaxy...
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    A K band survey in the Groth Strip Flanking Fields
    As a part of our collaboration in the COSMOS Project, devoted to the characterization of galaxies during the epoch of maximum star formation in the history of...
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    A Ks-band-selected catalogue of objects in the ALHAMBRA survey
    The original ALHAMBRA catalogue contained over 400 000 galaxies selected using a synthetic F814W image, to the magnitude limit AB(F814W) ≈ 24.5. Given the...
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    A Large Brightness Enhancement of the QSO 0957+561 A Component
    We report an increase of more than 0.2 mag in the optical brightness of the leading image (A) of the gravitational lens Q0957+561, detected during the 2000...
  • Publicación
    A Large-Area CCD Camera for the Schmidt Telescope at the Venezuelan National Astronomical Observatory
    We have designed, constructed, and put into operation a large-area CCD camera that covers a large fraction of the image plane of the 1 m Schmidt telescope at...