New calculations of the Galactic contamination over microwave background radiation anisotropies are carried out. On the one hand, when a frequency-dependent...
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PublicaciónA conspicuous increase of Galactic contamination over CMBR anisotropies at large angular scales
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PublicaciónA 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...
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PublicaciónA 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...
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PublicaciónA 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...
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PublicaciónA 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...
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PublicaciónAn 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...
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PublicaciónCO 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...
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PublicaciónComparison 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...
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PublicaciónComparison of Prestellar Core Elongations and Large-scale Molecular Cloud Structures in the Lupus I Region
Turbulence and magnetic fields are expected to be important for regulating molecular cloud formation and evolution. However, their effects on sub-parsec to 100...