Astrofisica Molecular en el Infrarrojo Lejano: Nubes Interestelares y Circunestelares

Details Astrofisica Molecular en el Infrarrojo Lejano: Nubes Interestelares y Circunestelares Astrofisica Molecular en el Infrarrojo Lejano: Nubes Interestelares y Circunestelares

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phdt.........3g&link_type=abstract

Ph. D. Thesis, Universidad Autonoma de Madrid

Astronomy and Astrophysics

Astrophysics

3

Infrared, Molecular Spectroscopy, Radiative Transfer, Iso.

Scientific paper

Due to the atmospheric opacity, the far-IR domain has been the last window used by Molecular Astrophysics. The potential of opening a new spectral frequency range through molecular spectroscopy has just begun to be exploited with the Infrared Space Observatory (ISO). The sensitivity of the instrumentation on board this satellite has no comparison with the few previous space missions or airborne observations carried before the launch of ISO. Almost all the operative range of ISO in the far-IR was not explored before. The far-IR spectrum of the most significant galactic sources was unknown. In particular, the main radiation emitters, the molecules, were unidentified.
Far-IR observations are specially suitable to the study of the warm gas in both, the molecular clouds in the interstellar medium and the inner regions of the circumstellar envelopes around evolved stars. Some of these sources: Sgr B2 in the Galactic Center and the Proto--Planetary Nebulae CRL2688, CRL618 and NGC7027 are paradigmatic objects for our knowledge of the chemical complexity of the Galaxy.
The molecular species that can be detected in the far-IR domain are essential for the study of the physical and chemical conditions of the interstellar and circumstellar media.

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