The zero-point vibrational isotope shift and the diffuse interstellar band at 6196 Å
نویسندگان
چکیده
منابع مشابه
The diffuse interstellar bands at 5797 , 6379 and 6613 Å Ionization properties of the carriers ?
We present a study of the behaviour and ionization properties of three narrow Diffuse Interstellar Bands (DIBs) at λλ5797, 6379 and 6613Å. In all three DIBs substructures have recently been detected, indicating large gaseous molecular carriers. Studying DIBs in regions with drastically different physical properties in terms of UV flux and density enables us to monitor the behaviour of the carri...
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Using the new high-resolution (∼8 km s ) echelle spectrograph on the 3.5 m telescope at the Apache Point Observatory, we have begun a high-sensitivity survey of the diffuse interstellar bands (DIBs) in a large sample of reddened stars. Now that we are 2 years into this long-term survey, our sample includes over 20 reddened stars that show at least one of the DIBs that had been suggested to be c...
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We report about a suprisingly good correlation between the equivalent width of the diffuse interstellar band (DIB) at 8620 Å and the interstellar reddening. Such a correlation offers bright prospects in using the 8620 Å DIB as a tracer of the extinction through the Galaxy in the context of the GAIA mission by ESA. The GAIA mission planned by ESA is aimed to provide astrometry in the 10 microarc...
متن کاملExperimental Vibrational Zero-Point Energies: Diatomic Molecules
Vibrational zero-point energies ZPEs , as determined from published spectroscopic constants, are derived for 85 diatomic molecules. Standard uncertainties are also provided, including estimated contributions from bias as well as the statistical uncertainties propagated from those reported in the spectroscopy literature. This compilation will be helpful for validating theoretical procedures for ...
متن کاملII . Top - down branching , nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers
The origin of the diffuse interstellar bands (DIBs), one of the longest-standing mysteries of the interstellar medium (ISM), is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS). The likely nature of the DIB carriers and their evolution is here explored within the framework of the structures and sub-structures inherent to doped hydrogenated...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2004
ISSN: 1365-2966,0035-8711
DOI: 10.1111/j.1365-2966.2004.07488.x