Browsing by Issue Date Facultad de Ciencias Físicas y Matemáticas
Now showing items 141-160 of 20580
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(UNIV CHICAGO PRESS, 1999-10)We have obtained I-band Tully-Fisher (T-F) measurements for 522 late-type galaxies in the fields of 52 rich Abell clusters distributed throughout the sky between similar to 50 and 200 h(-1) Mpc. Here we estimate corrections ...
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(1999-10)We develop a method for estimating the host galaxy dust extinction for type Ia supernovae based on an observational coincidence Ðrst noted by Lira, who found that the B[V evolution during the period from 30 to 90 days ...
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(1999-10-01)Observations with a four-channel UV radiometer in Santiago, Chile (33.5øS, 70.6øW) from January 1992 to December 1998 are presented. Chinreels are centered at 305, 320, 340 and 380 nm with a 10 nm bandwidth. Measurements were ...
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(1999-10-02)Optical positions relative to the Hipparcos Catalogue (ESA 1997) have been obtained for the optical counterparts of 15 faint (B 20 − 23) southern compact extragalactic radio sources (CERS). Most of these sources are ...
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(BLACKWELL SCIENCE LTD, 1999-10-11)We present the spectra and redshifts of 62 quasars, from observations made with the Cerro Tololo Inter-American Observatory (CTIO) 4-m Blanco Telescope. These quasars form part of a total sample of 118 (with 56 having been ...
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(E D P SCIENCES, 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, 1999-11)We present infrared imaging data in the J and K0 bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chosen to satisfy well de ned isolation ...
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(UNIV CHICAGO PRESS, 1999-11-01)Zehavi et al. have suggested that the Hubble flow within 70 h(-1) Mpc may be accelerated by the existence of a void centered on the Local Group. Its underdensity would be similar to 20%, which would result in a local Hubble ...
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(1999-11-08)We describe the two generic instabilities which arise in quasireversible systems and show that their normal forms are the well-known real Lorenz equations and the Maxwell-Bloch equations. We present for the first time ...
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(JOHN WILEY, 1999-11-30)A model representing the vibrations of a coupled fluid-solid structure is considered. This structure consists of a tube bundle immersed in a slightly compressible fluid. Assuming periodic distribution of tubes, this article ...
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(Churchill Livingstone, 2000)A new cryptology that uses biomolecules as carriers of hidden information is described here. The huge dimension of biopolymers permits the insertion there of private messages and the rapidity and specificity of biomolecular ...
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(Elsevier, 2000)A method for fast nucleotide sequencing is described. It is based in the selection of well-known small oligomers able to be hybridized with the unknown target. The selected oligomers are afterwards ordered following a ...
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(2000)Synoptic-scale incursions of midlatitude air moving into subtropical South America (to the east of the Andes Cordillera) are observed to occur year-round with a periodicity of about 1–2 weeks. During wintertime, they have ...
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(2000)Low level di_culties in the development of dis_ tributed systems that are due to non_standard com_ munication protocols and incompatible components or platforms have largely been solved through standardiza_ tion and ...
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(2000)Proper motions, coordinates and nding charts are given for 166 Luyten Catalogue (LTT, Luyten 1957) stars re-discovered as a result of a search for high proper motion stars carried out in nineteen 5 5 areas, ...
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(2000)We prove that the exact non local equation derived by the present authors for the temporal linear evolution of the surface of a viscous incompressible fluid reduces asymptotically for high viscosity to a second order ...
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(2000)The control of the microstructure of BaTiO3 films grown on titanium by the hydrothermal–electrochemical method was investigated. Experiments were conducted in a three-electrode high-pressure electrochemical cell in a ...
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(Springer-Verlag, 2000)Tourmaline alteration and high boron con- tents are typical features of the magmatic-hydrothermal systems of the Bolivian tin province. The average boron content in melt inclusions of quartz phenocrysts from tin porphyry ...
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(2000)We study the asymptotic behaviour of the transition density of a Brownian motion in D, killed at @D, where Dc is a compact non polar set. Our main result concern dimension d D 2, where we show that the transition density ...
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(Universidad de Chile, 2000)
