220 datasets found

Keywords: stellar atmospheres

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  • TheoSSA TMAP Web Interface

    TheoSSA provides spectral energy distributions based on model atmosphere calculations. Currently, we serve results obtained using the Tübingen NLTE Model Atmosphere Package...
  • TheoSSA - Theoretical Stellar Spectra Access

    TheoSSA provides spectral energy distributions based on model atmosphere calculations. Currently, we serve results obtained using the Tübingen NLTE Model Atmosphere Package...
  • TMAW -- Tübingen Model Atmosphere Package WWW Interface

    The Tübingen NLTE Model-Atmosphere Package (TMAP <http://astro.uni-tuebingen.de/%7ETMAP/TMAP.html>_) is a tool to calculate stellar atmospheres in spherical or...
  • SP_ACE spectral analysis tool

    SP_ACE computes stellar parameters (gravity, temperature) and element abundances from optical stellar spectra (sample spectrum_). It employs 1D stellar atmosphere models in...
  • PoWR

    Theoretical spectral energy distributions (SEDs) from expanding NLTE model atmospheres for hot stars.
  • Doppler beaming factors in binary stars

    The Doppler beaming effect, induced by the reflex motion of stars, introduces flux modulations and serves as an efficient method to photometrically determine mass functions for...
  • Planetary systems study with GALAH surveys

    Pioneering photometric, astrometric, and spectroscopic surveys is helping exoplanetary scientists better constrain the fundamental properties of stars within our galaxy and the...
  • Element abundances study of Cepheids

    Radial abundance gradients provide sound constraints for chemo-dynamical models of galaxies. Azimuthal variations of abundance ratios are solid diagnostics to understand their...
  • Limb-darkening for Space Mission GAIA

    In the past few years, the number of space missions with astrophysical purposes has increased, with COROT, KEPLER, MOST and more recently TESS. Two of the most important...
  • 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...
  • 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,...
  • Coronal hole parameters

    Coronal holes are usually defined as dark structures seen in the extreme ultraviolet and X-ray spectrum which are generally associated with open magnetic fields. Deriving...
  • CHEOPS limb and gravity-darkening coefficients

    The goal of this Research Note is to provide the theoretical calculations of the limb-darkening coefficients (LDC) and gravity-darkening coefficients (GDC) for the space mission...
  • Atmospheric parameters for 771 stars

    A number of spectroscopic surveys have been carried out or are planned to study the origin of the Milky Way. Their exploitation requires reliable automated methods and softwares...
  • 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...
  • 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...
  • The extended MILES library

    Extragalactic astronomy and stellar astrophysics are intrinsically related. In fact, the determination of important galaxy properties such as stellar masses, star formation...
  • Luminosities of 34 slowly pulsating B stars

    We provide three statistical model prescriptions for the bolometric corrections appropriate for B-type stars as a function of (i) T_eff_, (ii) T_eff_ and logg, and (iii) T_eff_,...
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