903 datasets found

Keywords: effective temperature

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  • HII regions synchrotron radiation

    Cosmic rays (CRs) and magnetic fields are dynamically important components in the Galaxy, and their energy densities are comparable to that of the turbulent interstellar gas....

  • Properties of galactic PNe central stars

    We have obtained multi-wavelength observations of compact Galactic planetary nebulae (PNe) to probe post-asymptotic giant branch (AGB) evolution from the onset of nebular...

  • Galactic Bulge Valinhos Observatory Catalog

    The definition, construction and realization of a reference system is one of the oldest and most fundamental tasks of astronomy. Currently, the ICRS (International Celestial...
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