Optical polarimetry and high-resolution spectroscopy of the Chamaeleon I dark cloud

Covino, E. and Penprase, B.E. and Palazzi, E. and Terranegra, L. and Schwarz, H.E. (1997) Optical polarimetry and high-resolution spectroscopy of the Chamaeleon I dark cloud. Il nuovo cimento C, 20 C (5). pp. 699-706. ISSN 1826-9885

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Abstract

Magnitudes of linear polarization in the UBVRI bands have been measured for about 30 background stars in the direction of the Chamaeleon I dark cloud. In addition, high-resolution spectroscopic observations in the wavelength ranges of the atomic species Ca II and Ca I and of the molecular species CH and CH+ have been performed towards the highly reddened and early-type stars selected fromthe polarimetry sample. The data have been used to study the magnetic-field structure, the relation between polarization and extinction, and the relation between molecular abundances and polarization properties in the cloud. In this contribution we present some of the results.

Item Type:	Article
Additional Information:	Paper presented at the VII Cosmic Physics National Conference, Rimini, October 26-28, 1994. Paper based on observations collected at the European Southern Observatory, La Silla, Chile.
Uncontrolled Keywords:	Cosmic rays; interplanetary gas and dust (including gegenschein and zodiacal light); conference proceedings
Subjects:	500 Scienze naturali e Matematica > 530 Fisica 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.5 Meteorologia (Classificare qui l'atmosfera) (Classificare la previsione e le previsioni di specifici fenomeni meteorologici in 551.64; classificare la Micrometeorologia in 551.66) > 551.52 Termodinamica, interazioni atmosferiche con la superficie terrestre, temperature, radiazioni > 551.527 Radiazioni (per fenomeni ottici, vedi 551.565) > 551.5276 Radiazioni cosmiche (Include il rumore cosmico) (Classificare qui i raggi cosmici)
Depositing User:	Marina Spanti
Date Deposited:	08 Feb 2018 10:44
Last Modified:	08 Feb 2018 10:44
URI:	http://eprints.bice.rm.cnr.it/id/eprint/12301

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