Publicaciones

  • The ultraviolet luminosity function of star-forming galaxies between redshifts of 0.6 and 1.2

    We use ultraviolet (UV) imaging taken with the XMM-Newton Optical Monitor telescope (XMM-OM), covering 280 arcmin2 in the UVW1 band (λeff = 2910 Å) to measure rest-frame UV 1500-Å luminosity functions of galaxies with redshifts z between 0.6 and 1.2. The XMM-OM data are supplemented by a large body of optical and infrared imaging to provide

    Page, M. J. et al.

    Fecha de publicación:

    9
    2021
  • Properties of a New Group of Cosmic Nuclei: Results from the Alpha Magnetic Spectrometer on Sodium, Aluminum, and Nitrogen

    We report the properties of sodium (Na) and aluminum (Al) cosmic rays in the rigidity range 2.15 GV to 3.0 TV based on 0.46 million sodium and 0.51 million aluminum nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We found that Na and Al, together with nitrogen (N), belong to a distinct cosmic ray

    Aguilar, M. et al.

    Fecha de publicación:

    7
    2021
  • Bayesian Evidence for a Nonlinear Damping Model for Coronal Loop Oscillations

    Recent observational and theoretical studies indicate that the damping of solar coronal loop oscillations depends on the oscillation amplitude. We consider two mechanisms: linear resonant absorption and a nonlinear damping model. We confront theoretical predictions from these models with observed data in the plane of observables defined by the

    Arregui, Iñigo

    Fecha de publicación:

    7
    2021
  • Detection of Fe and evidence for TiO in the dayside emission spectrum of WASP-33b

    Context. Theoretical studies predict the presence of thermal inversions in the atmosphere of highly irradiated gas giant planets. Recent observations have identified these inversion layers. However, the role of different chemical species in their formation remains unclear. Aims: We search for the signature of the thermal inversion agents TiO and Fe

    Cont, D. et al.

    Fecha de publicación:

    7
    2021
  • Machine learning initialization to accelerate Stokes profile inversions

    Context. At present, an exponential growth in scientific data from current and upcoming solar observatories is expected. Most of the data consist of high spatial and temporal resolution cubes of Stokes profiles taken in both local thermodynamic equilibrium (LTE) and non-LTE spectral lines. The analysis of such solar observations requires complex

    Gafeira, R. et al.

    Fecha de publicación:

    7
    2021
  • Mapping the Hidden Magnetic Field of the Quiet Sun

    The Sun is the only star where we can resolve the intricate magnetism that all convective stars harbor. Yet, more than 99% of its visible surface along the solar cycle (the so-called quiet Sun) is filled with a tangled, unresolved magnetism. These "hidden" fields are thought to store enough magnetic energy to play a role in the heating of the Sun's

    Trelles Arjona, J. C. et al.

    Fecha de publicación:

    7
    2021