Revista Mexicana de Astronomía y Astrofísica
Volumen 6
Abril 1981


Table of Contents
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Participants
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Preface
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Opening Address / Second Regional Latin-American Meeting in Astronomy / Merida / 1981JAN19-23
R. M. West
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Astronomy in Venezuela
J. Stock
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Search for neutral hydrogen in the early universe
I. F. Mirabel
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The spectrum of the extragalactic background light
A. G. Bruzual
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Objects with UV excess in the vicinity of the south galactic pole
C. Torres & L. E. Campusano
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Towards a More Complete Sample of Quasars in a Selected Area of the South Galactic Pole
L. E. Campusano
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Precise Optical Positions of Southern Radio Sources
H. Wroblewski, E. Costa, & C. Torres
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Optical identification of radio sources in a 8.5 X 8.5 zone near the south galactic pole
L. E. Campusano & C. Torres
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Ultraviolet Observations of the Quasars 3C249.1 and 3C232
E. Daltabuit & D. Dultzin-Hacyan
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Towards a study of southern distant clusters of galaxies
R. M. West
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Interaction in Two Contrasting Samples of Galactic Groups
A. C. Danks & G. Alcaino
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Convective mixing length and the galactic carbon to oxygen ratio
A. Serrano & M. Peimbert
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The masses of spiral galaxies
L. Maupome, P. Pismis, & L. Aguilar
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The Galaxy NGC55
J. A. Graham
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Neutral hydrogen in the Small Magellanic Cloud
N. Loiseau & E. Bajaja
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The circumstellar envelopes of F- and G-type supergiants in the Large Magellanic Cloud
W. Hagen, R. M. Humphreys, & R. E. Stencel
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The rotation curve of our Galaxy - How well do we know it?
P. Pismis
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Preliminary results of a galactic background survey at 45 MHz
M. Bitran, J. May, & J. Aparici
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A deep near infrared objective prism survey for carbon stars toward the galactic center and anticenter
F. J. Fuenmayor
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A derivation of the stellar luminosity function in the direction of the south galactic pole by a statistical method
S. L. Kipp
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On the machine computation of the orbits of eclipsing binaries
D. M. Popper
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A search for binaries among short-period southern Cepheid
W. Gieren
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Numerical results in the three-body problem
F. Lopez-Garcia
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Polarimetric observations of southern binary systems
H. G. Luna
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Block adjustment in photographic astrometry
J. Stock
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The combination of photographic material obtained with different Schmidt telescopes for the determination of proper motions
F. della Prugna
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A proper motion survey in the area of the galactic cluster in Coma Berenices
J. Cova S.
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An analysis of coordinate transformation in Schmidt telescope photographic plates
M. A. Penaloza M.
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Quince Años de Actividad del Astrolabio Danjon de Santiago
F. Noel
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Astronomía en Venezuela
J. Stock
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Fourier transform spectroscopy of six stars
E. E. Mendoza V.
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Narrow-band photometry in the 1-4 micron region - Calibration and applications
R. F. Wing & C. P. Rinsland
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13-color photometry of pre-main sequence stars - Preliminary report and results
C. Chavarria-K. &, E. de Lara
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Thirteen-color photometry of Be stars
M. Alvarez & W. J. Schuster
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Properties of G-type stars from UVBY photometry
A. Ardeberg & H. Lindgren
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Mass loss from hot stars
J. A. de Freitas Pacheco
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The Wolf-Rayet stars
J. Sahade
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Variations in the ultraviolet spectrum of the symbiotic star Z Andromedae
J. Sahade, E. Brandi, & J. M. Fontenla
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Preliminary report on the IUE spectra of Mu(1) Scorpii
J. Sahade & L. G. Garcia
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Groundbased and IUE Spectral Observations of Au-Monocerotis
J. Sahade, J. & O. E. Ferrer
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V923-Aquilae
A. E. Ringuelet & J. Sahade
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Transition region models for Be stars
J. M. Fontenla, M. Rovira, & A. E. Ringuelet
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Ultraviolet continuum of a sample of Be stars
A. E. Ringuelet, M. Rovira, & J. M. Fontenla
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Detection of pulsars PSR 1133 + 16 and PSR 2045-16 at low radio frequencies
F. Reyes, T. D. Carr, J. P. Oliver, J. May, M. Bitran, & J. Aparici
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The spectrum of the star AP HD 3473
Z. Lopez-Garcia
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Dependence of the continuum energy distribution of T Tauri stars on the location of the temperature minimum
N. Calvet
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The Cooling Trend in Fg-Sagittae
J. Smolinski & J. L. Climenhaga
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H-alpha emission in F-K high luminosity stars
J. L. Climenhaga, B. L. Harris, & J. Smolinski
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Different stellar winds in O-type stars
R. Costero & R. Stalio
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Observations of Two Binary Systems with Wolf-Rayet Components
V. S. Niemela
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HD65865 - a Visual Binary WN4.5+A
V. S. Niemela
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High velocity clouds - Review of observational properties
I. F. Mirabel
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Fine structure in high velocity clouds
R. Morras & E. Bajaja
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Neutral hydrogen related to Gould's belt
W. G. Poeppel, C. A. Olano, &apm; C. E. Cappa de Nicolau
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Neutral Hydrogen Associated with the Supernova Remnant Lupus Loop
F. R. Colomb & G. M. Dubner
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The H 166 alpha recombination line in the Carina Nebula
I. N. Azcarate, J. C. Cersosimo, & F. R. Colomb
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Detection of two new water vapor emission sources in the southern hemisphere
M. Alcina-Braz
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Fragmentation of prestellar clouds by molecule formation
M. H. Ibanez S.
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Electron impact excitation of positive ions of astrophysical interest. I - Theoreical method
C. Mendoza
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Ultraviolet observations of planetary nebulae - NGC 6572, NGC 5315 and BD + 30 deg 3639
S. Torres-Peimbert & M. Pena
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Ultraviolet spectrum of the planetary nebula NGC 7662 Observations and models
M. Pena & S. Torres-Peimbert
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Chemical enrichment in halo planetary nebulae
S. Torres-Peimbert, J. F. Rayo, & M. Peimbert
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The Planetary Nebula M4-18
M. Peimbert & S. Torres-Peimbert
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Optical emission from ring-shaped nebulae in the LMC
M. Rosado, Y. M. Georgelin, & G. Monnet
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Internal movements in H II regions - The small nebula Sharpless 158
M. A. Moreno
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Geometry of the distribution of plasma tail rays in a cometary type 1 tail
H. Perez de Tejada
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Infrared Observations of Comets
H. Campins & G. H. Rieke
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On the CN(0,0) spectrum of comet Kohoutek 1973 XII
I. Ferrin & O. Escalona
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Light curves of some periodic comets
I. Ferrin & E. Guzman
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Ice particles in circular orbits around the sun
A. Parravano & I. Ferrin
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Coronal transport of solar flare particles
J. Martinell & J. Perez-Peraza
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Study of Particle Generation in Low Energy Events
J. Perez-Peraza
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Exploration of Solar Cosmic Ray Sources by Means of Proton Energy Spectra
J. Perez-Peraza
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Solar variability
S. Sofia
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Programmable and automatic calibrator for radio sources at 45 MHz
J. Aparici, J. May, F. Salas, & J. Ventura
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A computational system for the automatic and simultaneous acquisition of radio telescope data from four different directions
J. Aparici, J. May, F. Salas, & J. Ventura
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Use of a laser in the collimation of the CIDA Schmidt camera
D. J. MacConnell & H.-J. Schenner
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Information on Introductory Courses in Astronomy
J. Cova S.
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Programs for the Calculations of Astronomical Ephemerides
M. A. Cardona-Garces & F. Contreras-Botto
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Spanish Translation of Modern Astronomical Terminology
H. Alvarez & L. E. Campusano
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Segunda Reunión Regional Latinoamericana de Astronomía. Conference held at Mérida, Venezuela, January 19 - 23, 1981
G. Bruzual A., F. J. Fuenmayor, M. Peimbert, J. F. Rayo, S. Torres-Peimbert, & R. M. West
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