Astrophysical: Clouds

  • Publication
    A conspicuous increase of Galactic contamination over CMBR anisotropies at large angular scales
    New calculations of the Galactic contamination over microwave background radiation anisotropies are carried out. On the one hand, when a frequency-dependent...
  • Publication
    A high-resolution study of near-IR diffuse interstellar bands, search for small-scale structure, time variability, and stellar features
    Context. The diffuse interstellar bands (DIBs) are a set of hundreds of unidentified absorption features that appear almost ubiquitously throughout the...
  • Publication
    A rich molecular chemistry in the gas of the IC 348 star cluster of the Perseus Molecular Cloud
    We present Spitzer 10-34 $\mu{\rm m}$ spectroscopic observations of the diffuse gas in the inner region of the star-forming region IC 348 of the Perseus...
  • Publication
    A Search for Stellar Populations in High-Velocity Clouds
    We report the results of a photometric search for giant stars associated with the cores of four high-velocity clouds (HVCs)-two of which are compact HVCs-using...
  • Publication
    A Spectral Diagnostic for Density-Bounded HII Regions
    Our spectral diagnostic based on the intensity of the [OI]λ6300Å line indicates that many observed HII regions are indeed density-bounded. The estimated...
  • Publication
    A study of the behaviour of the NaI/KI column density ratio in the interstellar medium using the Na ultraviolet doublet
    Here we make a new study of the behaviour of the NaI/KI column density ratio in the interstellar medium, using a sample of new observations of 28 stars obtained...
  • Publication
    An application of an optimal statistic for characterizing relative orientations
    We present the projected Rayleigh statistic (PRS), a modification of the classic Rayleigh statistic, as a test for non-uniform relative orientation between two...
  • Publication
    CO emission from candidate photo-dissociation regions in M 81
    Context: .At least a fraction of the atomic hydrogen in spiral galaxies is suspected to be the result of molecular hydrogen which has been dissociated by...
  • Publication
    Comparison of Magnetic Field Structures on Different Scales in and around the Filamentary Dark Cloud GF 9
    New visible polarization data combined with existing IR and FIR polarization data are used to study how the magnetic field threading the filamentary molecular...