665 datasets found

Keywords: Astronomical models

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  • Simulation Atlas of Tidal Features in Galaxies

    The simulation survey of tidally perturbed galaxies provides images of 84 different encounters that vary orbit tilt of companion orbit, perigalacticon distance ratio of primary...
  • Grids of ATLAS9 Model Atmospheres and MOOG spectra

    A grid of ATLAS9 model atmospheres has been computed, spanning Teff in 3500--8000K, log.g in 0.0--5.0, [Fe/H] in -4.0--0.0, [{alpha}/Fe] in -0.08--1.2. These parameters are...
  • Theoretical spectra of red giants and supergiants

    It remains difficult to interpret the near-IR emission of young stellar populations. One main reason is our incomplete understanding of the spectra of luminous red stars. This...
  • High-resolution synthetic stellar library

    Libraries of stellar spectra are fundamental tools for the study of stellar populations and both empirical and synthetic libraries have been used for this purpose. In this...
  • Population Synthesis Models at very low metallicities

    Using new sets of stellar evolution models at very low metallicities (Z=10^-7^; 10^-5^) and previously published grids we examine spectral properties of the ionising continua,...
  • New Numerical Galaxy Catalog (nu^2^GC)

    We present a new cosmological galaxy formation model, nu^2^GC, as an updated version of our previous model nuGC. We adopt the so-called "semi-analytic" approach, in which the...
  • Main sequence magnetic stars properties

    We reconsidered the previous studies of properties of magnetic stars based on the latest data on average surface magnetic fields of 177 stars. New, corrected results have been...
  • Fundamental parameters of CP stars

    The paper presents the results of determination of fundamental parameters (effective temperature, surface gravity, luminosity, mass, radius, rotation velocity, and radial...
  • Classification of Rocky Exoplanet Sample

    With over 5000 exoplanets currently detected, there is a need for a primary classification method to prioritise candidates for biosignature observations. Here, we develop a...
  • Chaos indicators of exoplanetary systems

    Here we present an initial look at the dynamics and stability of 178 multiplanetary systems which are already confirmed and listed in the NASA Exoplanet Archive. To distinguish...
  • Dual AGN in the Horizon-AGN simulation

    The occurrence of dual active galactic nuclei (AGN) on scales of a few tens of kpc can be used to study merger-induced accretion on massive black holes (MBHs) and to derive...
  • Viewing angle in AGN SED models

    The validity of the unified active galactic nuclei (AGN) model has been challenged in the last decade, especially when different types of AGNs are considered to only differ in...
  • Synthetic spectra of red supergiants with winds

    The rate at which mass is lost during the Red Supergiant evolutionary stage may strongly influence how the star appears. Though there have been many studies discussing how RSGs...
  • COSMOS2015 dataset machine learning photo-z

    In order to answer the open questions of modern cosmology and galaxy evolution theory, robust algorithms for calculating photometric redshifts (photo-z) for very large samples...
  • HR-PYPOPSTAR model

    We present the HR-PYPOPSTAR model, which provides a complete set (in ages) of high-resolution (HR) spectral energy distributions of Single Stellar Populations. The model uses...
  • Model spectra for identifying age spreads

    In this third paper of a series on the precision of obtaining ages of stellar populations using the full spectrum fitting technique, we examine the precision of this technique...
  • Asteroseismic modelling of solar-type stars

    Detailed understanding of stellar physics is essential towards a robust determination of stellar properties (e.g. radius, mass, and age). Among the vital input physics used in...
  • Theoretical scenario for RR Lyrae in Gaia

    On the basis of an extended set of non-linear convective RR Lyrae pulsation models we derive the first theoretical light curves in the Gaia bands G, G_BP_, and G_RP_ and the...
  • Stellar and planetary parameters from TEPCAT

    We present a publicly available library of model atmospheres with radiative-convective equilibrium pressure-temperature (P-T) profiles fully consistent with equilibrium chemical...
  • Role of galactic dynamics in shaping GMCs

    We examine the role of the large-scale galactic-dynamical environment in setting the properties of giant molecular clouds in Milky Way-like galaxies. We perform three...
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