Astrofísicas: Galaxias

  • Publicación
    Recent Star Formation in Groups of Galaxies: HCG 31
    Broadband UBVRI and narrowband H alpha and continuum images have been obtained for the Hickson compact group HCG 31 as part of an ongoing program devoted to the...
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    Recent star formation in UCM galaxies (Perez-Gonzalez+, 2003)
    We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques...
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    Reclassification of the nearest quasar pair candidate: SDSS J15244+3032-RXS J15244+3032
    We present optical spectroscopy of the nearest quasar pair listed in the 13th edition of the Véron-Cetty & Véron catalogue, i.e. the two quasars SDSS J15244...
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    Reconstructing the mass accretion histories of nearby red nuggets with their globular cluster systems
    It is generally recognized that massive galaxies form through a combination of in-situ collapse and ex-situ accretion. The in-situ component forms early, where...
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    Reconstructing the Stellar Mass Distributions of Galaxies Using S4G IRAC 3.6 and 4.5 μm Images. I. Correcting for Contamination by Polycyclic Aromatic Hydrocarbons, Hot Dust, and Intermediate-age Stars
    With the aim of constructing accurate two-dimensional maps of the stellar mass distribution in nearby galaxies from Spitzer Survey of Stellar Structure in...
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    Reconstructing the Stellar Mass Distributions of Galaxies Using S4G IRAC 3.6 and 4.5 μm Images. II. The Conversion from Light to Mass
    We present a new approach for estimating the 3.6 μm stellar mass-to-light (M/L) ratio Upsilon3.6 in terms of the [3.6]-[4.5] colors of old stellar populations...
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    Recovering chemical bimodalities in observed edge-on stellar disks: Insights from AURIGA simulations
    The well-known bimodal distribution of Milky Way disk stars in the [α/Fe]–metallicity plane is often used to define thick and thin disks. In external edge-on...
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    Recovering star formation histories: Integrated-light analyses vs. stellar colour-magnitude diagrams
    Context. Accurate star formation histories (SFHs) of galaxies are fundamental for understanding the build-up of their stellar content. However, the most...
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    Recovering the ages and metallicities of stars of a complex stellar population system
    We present a new method to solve for the star-formation history (SFH) of a complex stellar population system from the analysis of the color-magnitude diagram...