Journal: Astronomy and Astrophysics

  • Publication
    Extended wings of the UV SI IV, C IV resonance doublets and the complex [Fe II] profiles in P Cygni.
    We investigate the formation and the nature of the extended wings of the UV resonance lines of Si IV 1394, 1402A and C IV 1548 and 1550A in the spectrum of the...
  • Publication
    Extended X-ray emission in PKS 1718-649
    PKS 1718-649 is one of the closest and most comprehensively studied candidates of a young active galactic nucleus (AGN) that is still embedded in its optical...
  • Publication
    Extinction curve template for intrinsically reddened quasars
    We analyzed the near-infrared to UV data of 16 quasars with redshifts ranging from 0.71
  • Publication
    Extragalactic globular cluster near-infrared spectroscopy: I. Integrated near-infrared spectra of Centaurus A/NGC 5128
    Context. One way to constrain the evolutionary histories of galaxies is to analyse their stellar populations. In the local Universe, our understanding of the...
  • Publication
    Extragalactic globular cluster near-infrared spectroscopy: II. The stellar population synthesis model zero-point problem extends to the near-infrared
    Many recent studies have pointed out significant discrepancies between observations and models of stellar populations in the near-infrared (NIR). With current...
  • Publication
    Extrasolar planet detection by binary stellar eclipse timing: evidence for a third body around CM Draconis
    Aims:Our objective is to elucidate the physical process that causes the observed observed-minus-calculated (O-C) behavior in the M4.5/M4.5 binary CM Dra and to...
  • Publication
    Extreme emission-line galaxies out to z ~ 1 in zCOSMOS. I. Sample and characterization of global properties
    Context. The study of large and representative samples of low-metallicity star-forming galaxies at different cosmic epochs is of great interest to the detailed...
  • Publication
    Extreme HBL behavior of Markarian 501 during 2012
    Aims: We aim to characterize the multiwavelength emission from Markarian 501 (Mrk 501), quantify the energy-dependent variability, study the potential multiband...
  • Publication
    Extreme value theory and the solar cycle
    Aims:We investigate the statistical properties of the extreme events of the solar cycle as measured by the sunspot number. Methods: The recent advances in the...