Astrofísicas: Técnicas

  • Publicación
    Do AGN triggering mechanisms vary with radio power? - I. Optical morphologies of radio-intermediate HERGs
    Active galactic nuclei (AGNs) with intermediate radio powers are capable of driving multiphase outflows in galaxy bulges, and are also more common than their...
  • Publicación
    Doppler imaging of the double-lined active binary V824 Ara
    We introduce an iterative spectral disentangling technique combined with Doppler imaging in order to recover surface temperature maps for both components of...
  • Publicación
    Doppler Monitoring of Five K2 Transiting Planetary Systems
    In an effort to measure the masses of planets discovered by the NASA K2 mission, we have conducted precise Doppler observations of five stars with transiting...
  • Publicación
    Doppler tomographic measurement of the nodal precession of WASP-33b
    WASP-33b is a retrograde hot Jupiter with a period of 1.2 d orbiting a rapidly rotating and pulsating A-type star. A previous study found that the transit chord...
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    Downflowing umbral flashes as evidence of standing waves in sunspot umbrae
    Context. Umbral flashes are sudden brightenings commonly visible in the core of some chromospheric lines. Theoretical and numerical modeling suggests that they...
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    Dust in active galactic nuclei. Mid-infrared T-ReCS/Gemini spectra using the new RedCan pipeline
    Context. The unified model of active galactic nuclei (AGN) claims that the properties of AGN depend on the viewing angle of the observer with respect to a...
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    Dust in the Polar Region as a Major Contributor to the Infrared Emission of Active Galactic Nuclei
    Dust around active galactic nuclei (AGNs) is distributed over a wide range of spatial scales and can be observed in the infrared (IR). It is generally assumed...
  • Publicación
    Dust production and coma morphology of 67P/Churyumov-Gerasimenko during the 2002-2003 apparition
    Light curves and images of 67P/Churyumov-Gerasimenko are presented for the 2002-2003 apparition based on amateur CCD monitoring using a standardised method to...
  • Publicación
    Dust production and coma morphology of 67P/Churyumov-Gerasimenko during the 2002/2003 apparition. II. A comparative study of dust production in 46P/Wirtanen and 67P/Churyumov-Gerasimenko during their 2002/2003 apparition
    A comparison is made of the light curves and and dust production of the initial target for the ROSETTA mission, 46P/Wirtanen and the new target 67P/Churyumov...