Astrofísicas: Métodos

  • Publicación
    Three-dimensional simulations of solar magneto-convection including effects of partial ionization
    In recent decades, REALISTIC three-dimensional radiative-magnetohydrodynamic simulations have become the dominant theoretical tool for understanding the complex...
  • Publicación
    Three-dimensional Spectral Classification of Low-Metallicity Stars Using Artificial Neural Networks
    We explore the application of artificial neural networks (ANNs) for the estimation of atmospheric parameters (Teff, logg, and [Fe/H]) for Galactic F- and G-type...
  • Publicación
    Three-dimensional structure of a sunspot light bridge
    Context. Active regions are the most prominent manifestations of solar magnetic fields; their generation and dissipation are fundamental problems in solar...
  • Publicación
    Through thick and thin: Structure of the Galactic thick disc from extragalactic surveys
    Context. We aim to understand the accretion history of the Milky Way by exploring the vertical and radial properties of the Galactic thick disc. Aims: We study...
  • Publicación
    Through Thick and Thin—H I Absorption in Cosmological Simulations
    We investigate the column density distribution function of neutral hydrogen at redshift z = 3 using a cosmological simulation of galaxy formation from the...
  • Publicación
    Time Delay in QSO 0957+561 From 1984-1999 Optical Data
    Photometric optical data of QSO 0957+561 covering the period 1984-1999 are analyzed to discern between the two values of the time delay (417 and 424 days)...
  • Publicación
    Time Series Analysis of Long Term Full Disk Observations Of The Mn I 539.4 nm Solar Line
    The equivalent width and central depth data of Mn 539.4 nm solar spectral line, observed in the period from 1979 to 1992 at Kitt Peak Observatory, was analyzed...
  • Publicación
    TMCalc - a fast code to derive Teff and [Fe/H] for FGK stars
    We present a new direct spectroscopic calibration for a fast estimation of the stellar metallicity [Fe/H]. This calibration was computed using a large sample of...
  • Publicación
    TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
    Context. Exoplanets with orbital periods of less than one day are known as ultra-short period (USP) planets. They are relatively rare products of planetary...