Astrofísicas: Galaxias

  • Publicación
    Constraining the top-light initial mass function in the extended ultraviolet disk of M 83
    Context. The universality or non-universality of the initial mass function (IMF) has significant implications for determining star formation rates and star...
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    Constraints on Feedback Processes during the Formation of Early-type Galaxies
    Galaxies are found to obey scaling relations between a number of observables. These relations follow different trends at the low- and high-mass ends. The...
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    Constraints on redshifts of blazars from extragalactic background light attenuation using Fermi-LAT data
    The extragalactic high-energy γ-ray sky is dominated by blazars, which are active galactic nuclei with their jets pointing towards us. Distance measurements are...
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    Constraints on the evolutionary mechanisms of massive galaxies since z ∼ 1 from their velocity dispersions
    Several authors have reported that the dynamical masses of massive compact galaxies (M* ≳ 1011 M⊙, re ∼ 1 kpc), computed as Mdyn = 5.0 σe2 re/G, are lower than...
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    Constraints on the merging channel of massive galaxies since z ˜ 1
    We probe the merging channel of massive galaxies over the z = 0.3-1.3 redshift window by studying close pairs in a sample of 238 galaxies with stellar mass...
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    Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energy γ-rays
    Aims: The radio galaxy NGC 1275, recently identified as a very high energy (VHE, >100 GeV) γ-ray emitter by MAGIC, is one of the few non-blazar active galactic...
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    Contribution of a disc component to single-peaked broad lines of active galactic nuclei
    We study the disc emission component hidden in the single-peaked broad emission lines (BELs) of active galactic nuclei. We compare the observed broad lines from...
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    Contribution of the disk emission to the broad emission lines in AGNs: Two-component model
    We present an investigation of the structure of the emission line region in a sample of 12 single-peaked Active Galactic Nuclei (AGNs). Using the high...
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    Control sample for galaxy pairs: Simulations and Observations
    Several attempts have been made in order to isolate the effect of galaxy interactions by comparing galaxy in pairs with isolated galaxies. However, different...