Interstellar-dust properties as deduced from FIR and millimetric observations

We have considered some millimetric observations of our Galaxy and of the Large Magellanic Cloud (LMC) taken at the Italian Base in Antarctica. Using other submm data and fitting all the observations with a modified Planck curve, we have obtained useful information about the temperaure T and the spe...

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Bibliographic Details
Published in:Il Nuovo Cimento C
Main Authors: MERLUZZI, Paola, ROTUNDI, Alessandra, COLANGELI, Luigi, MENNELLA, Vito, BUSSOLETTI, Ezio, Andreani, P., Dall'Oglio, G., Pizzo, L.
Other Authors: Merluzzi, Paola, Rotundi, Alessandra, Colangeli, Luigi, Mennella, Vito, Bussoletti, Ezio
Format: Article in Journal/Newspaper
Language:English
Published: 1993
Subjects:
IR source
Ocean Engineering
Mechanical Engineering
Electrical and Electronic Engineering
Control and Systems Engineering
Engineering (miscellaneous)
Nuclear Energy and Engineering
Computer Science Applications1707 Computer Vision and Pattern Recognition
Chemical Engineering (all)
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11367/63139
https://doi.org/10.1007/BF02512046
Description
Summary:We have considered some millimetric observations of our Galaxy and of the Large Magellanic Cloud (LMC) taken at the Italian Base in Antarctica. Using other submm data and fitting all the observations with a modified Planck curve, we have obtained useful information about the temperaure T and the spectral index α of the dust grains both for the Galaxy and the LMC. For the galactic spectrum two different couples of T and α match the detected fluxes:a)T=7K, α=2;b)T=15K, α=1.1. We have tried to identify the nature of the dust grains responsible for the submm and mm emission by comparing these results with the spectral trend of some cosmic analogues studied in laboratory. © 1993 Società Italiana di Fisica.

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