Tipo de publicación: Con árbitro

  • Publicación
    The Intergalactic Stellar Population from Mergers of Elliptical Galaxies with Dark Matter Halos
    We present simulations of dry-merger encounters between pairs of elliptical galaxies with dark matter halos. The aim of these simulations is to study the...
  • Publicación
    The intermediate age open cluster NGC 7044
    A photometric analysis is conducted of the open cluster NGC 7044, on the basis of UBVR CCD observations of 896 stars in the cluster field. Reddening and...
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    The intermediate polar cataclysmic variable GK Persei 120 years after the nova explosion: a first dynamical mass study
    We present a dynamical study of the intermediate polar and dwarf nova cataclysmic variable GK Persei (Nova Persei 1901) based on a multisite optical...
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    The Intermittent Extreme Behaviour of BL Lac 1ES 2344+514
    The BL Lac object 1ES~2344+514 was one of the first sources to be included in the extreme high-peaked BL Lac (EHBL) family. EHBLs are characterised by a...
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    The internal dynamical equilibrium of H II regions: A statistical study
    We present an analysis of the integrated Hα emission line profiles for the H SHAPE Ii region population of the spiral galaxies NGC 1530, NGC 6951 and NGC 3359...
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    The Internal Proper Motion Kinematics of NGC 346: Past Formation and Future Evolution
    We investigate the internal kinematics of the young star-forming region NGC 346 in the Small Magellanic Cloud (SMC). We used two epochs of deep F555W and F814W...
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    The Interpretation of a 2175A Absorption Feature in the Gravitational Lens Galaxy SBS0909 + 532 at z = 0.83
    Comparison of recent spectra by V. Motta et al. (V. Motta et al.: Astrophys. J. 574, 719 725) of two images of a distant gravitationally lensed quasar (z = 1.38...
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    The interstellar (C-12)H(+)/(C-13)H(+) ratio towards HD 26676
    We present a new determination of the interstellar 12CH+/13CH+ ratio in the solar neighbourhood, based on high spectral resolution CCD observations of the CH+...
  • Publicación
    The Interstellar 12CH+/13CH+ Ratio Towards the Scorpius OB1 Association
    We observed the λ 4232 Å CH+ interstellar line in the direction of the Sco OB 1 association (d ≃ 2 kpc) with the aim of detecting variations of the 12C/13C...