Journal: Astronomy and Astrophysics

  • Publication
    Effect of the local and large-scale environment on the star formation histories of galaxies
    Context. The specific environment of galaxies may play a key role in their evolution. Large extragalactic surveys make it possible to study galaxies not only...
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    Effect of the stellar absorption line centre-to-limb variation on exoplanet transmission spectrum observations
    Transit spectroscopy is one of the most commonly used techniques for exoplanet atmosphere characterisation. This technique has been used to detect ionised and...
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    Effects of a dependence of meteor brightness on the entry angle.
    In this paper we discuss the observational consequences of a dependence of meteor brightness on the entry angle z_R_, namely the decrease of the observed rates...
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    Effects of photon escape on diagnostic diagrams for H II regions
    In this article we first outline the mounting evidence that a significant fraction of the ionizing photons emitted by OB stars within H ii regions escape from...
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    Effelsberg 100-m polarimetric observations of a sample of compact steep-spectrum sources
    Aims: We completed observations with the Effelsberg 100-m radio telescope to measure the polarised emission from a complete sample of compact steep-spectrum...
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    Eight more ultra luminous X-ray candidates unmasked
    Aims:We aim to identify the nature of several objects previously catalogued as ultra-luminous X-ray (ULX) source candidates. Methods: Long-slit spectroscopy of...
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    EK Cephei B: a test object for pre-ZAMS models of solar-type stars
    From high-resolution spectroscopy in the Li I λ67O.8 nm region of the double-lined detached eclipsing binary system EK Cepheid, we find a surface lithium...
  • Publication
    Electron-beam interaction with emission-line clouds in blazars
    Context. An electron-positron beam escaping from the magnetospheric vacuum gap of an accreting black hole interacts with recombination-line photons from...
  • Publication
    Embedded AGN and star formation in the central 80 pc of IC 3639
    Aims: Our goal is to probe the inner structure and the nature of the mid-IR emission in the active galaxy IC 3639, which hosts a Seyfert 2 nucleus and shows...