RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649

Vol. 21 No. 1 (1990)

Published January 1, 1990
Portada RMxAA

Research articles

Torres-Peimbert S. (Author)
1-765
Memorias de la Sexta Reunión Regional Latinoamericana de Astronomía de la Unión Astronómica Internacional, Gramado, Rio Grande do Sul (Brazil), 16 - 20 Oct 1989.
Torres-Peimbert S. (Author)
13
Introduccion a Las Memorias
PDF
Lepine J. R. D. (Author)
14
Prefacio
PDF
Pastoriza M. G. (Author)
15
Discurso de Inauguracao
PDF
Ferraz-Mello S. (Author)
21
Reporte de la Asamblea General de la VI Reunion Regional Latinamricana de la Union Astronomica Internacional
PDF
Klapp J., Cervantes-Cota J., Chauvet P. (Author)
23
Numerical Results for a Polytropic Cosmology Interpreted as a Dust Universe Producing Gravitational Waves
PDF
Corona-Galindo M. G., Klapp J., Vazquez A. (Author)
28
Instabilities in a Relativistic Viscous Fluid
PDF
Corona-Galindo M. G., Cardona O., Klapp J. (Author)
31
Influence of Helium in Gravitational Instabilities
PDF
Carvalho J. C., Lima J. A. S. (Author)
33
Newtonian Version of the Variable Mass Theory of Gravity
PDF
de Araujo J. C. N., Opher R. (Author)
38
Formation of Voids from Negative Density Perturbations
PDF
Pellegrini P. S., da Costa L. N. (Author)
41
Nearby galaxy redshift surveys.
PDF
Sodré L., Jr., Capelato H. V., Steiner J. E., Mazure A., Proust D. (Author)
52
The clusters of galaxies SC2008-57 (A3667).
PDF
Quintana H., Ramírez A. (Author)
57
Two examples of clusters dynamical cusps: A496 and Sersic40/6.
PDF
Salvador-Solé E., Sanromà M. (Author)
61
On the universality of density profiles in clusters of galaxies.
PDF
Sodré L., Jr., Capelato H. V. (Author)
65
Low levels of luminosity segregation in clusters of galaxies: evidence for their dynamical youth?
PDF
Ramírez A., Quintana H. (Author)
69
Clusters of galaxies with double components.
PDF
de Gouveia Dal Pino E. M., Opher R. (Author)
74
Is the superluminal motion of compact sources a consequence of the dynamics of propagation of thermal instabilities?
PDF
Fagundes H. (Author)
79
A suggestion on the pair of QSO triplets 1130+106 {B,A,C}, {X,Y,Z}.
PDF
Rabaca C. R., Abraham Z. (Author)
85
Energetic and Structural Analysis of Compact Extragaiactic Sources Derived from the High-Frequency Spectral Turnover
PDF
Aguilar L. A. (Author)
89
Violent Relaxation, Dynamical Instabilities and the Formation of Elliptical Galaxies
PDF
Telles J. E., de Souza R. E., Penereiro J. C. (Author)
99
Spherical galaxies.
PDF
Lemos J. P. S. (Author)
103
Disc Instability to the Pulsating Mode
PDF
Chatterjee T. K. (Author)
105
A Dynamical Study of the Formation of Peculiar Galaxies
PDF
Altschuler D. R. (Author)
109
The variability of extragalactic radio sources.
PDF
Puerari I., Dottori H. A. (Author)
126
Spiral structure in NGC 1566.
PDF
Junqueira S., de Freitas Pacheco J. A. (Author)
131
An Estimate of the Tidal Effects in the Dynamics of the Binary Galaxies
PDF
Andernach H., Andreazza C. M. (Author)
136-140
The Distribution of Radio Sources Towards Rich Clusters of Galaxies
PDF
de Gouveia Dal Pino E. M., Opher R. (Author)
141
Are the observed filaments in extended radio sources due to synchrotron radiation thermal instabilities?
PDF
Jafelice L. C., Opher R., de Assis A. S., Busnardo-Neto J. (Author)
145
Current Generation in Extragalactic Jets by MHD Waves
PDF
Jafelice L. C., Opher R. (Author)
149
Kinetic Alfven Waves and the Depletion of the Thermal Population in Extragalactic Jets
PDF
Jafelice L. C., Opher R. (Author)
152
The magnetization of the intergalactic medium by extragalactic jets.
PDF
de Mello Rabaça D. F., Abraham Z. (Author)
155-157
Study of the variability of the nucleus of Centaurus A.
Fernandes de Mello Rabaca D., Abraham Z. (Author)
155
Study of the variability of the nucleus of Centaurus A.
PDF
Schroder M. F. S., Pastoriza M. G., Mediavilla E. (Author)
158
CCD Surface Photometry of Southern Galaxies in BVRI
PDF
Terlevich R. (Author)
163
Star formation in galactic nuclei.
PDF
Kirhakos S. D., Steiner J. E. (Author)
169
X-Rays and Infrared Selected AGN
PDF
Kotanyi C. (Author)
173
NGC 3309: an S-shaped radio galaxy in a nearby cluster.
PDF
Winge C., Pastoriza M. G., Storchi-Bergmann T. (Author)
177
On the low state of activity of NGC 3783.
PDF
Alloin D., Bica E. (Author)
182
New routes in the analysis of composite stellar populations.
PDF
Pastoriza M. G., Ludke E., Bica E. (Author)
187
Spatial population synthesis and emission line analysis of NGC 5253.
PDF
Terlevich E., Díaz A. I., Pastoriza M., Terlevich R., Dottori H. (Author)
192
The first direct detection of red supergiants in a giant H II region.
PDF
Maciel W. J., Leite C. C. M. (Author)
197
New Results on the Determination of the Pregalactic Helium Abundance
PDF
Bica E., Santos J. F. C., Jr., Alloin D. (Author)
202
Near-infrared spectral evolution of blue LMC clusters: a comparison with Galactic open clusters.
PDF
Bonatto C., Lipari S., Pastoriza M. G. (Author)
207
Optical Emission in Some Luminous IRAS Galaxies
PDF
Quintana H., Santos J. F. C., Jr., Dottori H., Bica E. (Author)
209
Stellar content in dumbbell galaxies.
PDF
Storchi-Bergmann T., Bica E., Pastoriza M. G. (Author)
213
The central region of a sample of Seyfert 2 galaxies.
PDF
Terlevich E., Díaz A. I., Terlevich R. (Author)
218
What is the Ca II feature in the near IR telling us about active galactic nuclei?
PDF
Díaz A. I., Terlevich E., Pagel B. E. J., Vílchez J. M., Edmunds M. G. (Author)
223
Abundance analysis of giant H II regions in nearby spirals.
PDF
Castañeda H. O., Vilchez J. M., Copetti M. V. F. (Author)
231
Very high velocity gas in giant extragalactic H II regions.
PDF
Robledo-Rella V., Firmani C. (Author)
236
Initial mass function in starburst galaxies with different metallicity.
PDF
Rubio M. (Author)
241
CO in the Magellanic Clouds.
PDF
Harnett J. I., Loiseau N., Reuter H. P. (Author)
245
12CO(1-0) observations of barred galaxies with intense FIR emission.
PDF
Rubio M., Roth M., Tapia M. (Author)
249
IR images of N159 in the LMC.
PDF
Sala F. (Author)
251
Analytic Time Depending Galaxy Models
PDF
Cortés P., Sala F. (Author)
255
A contribution to the study of the structure of the Galaxy.
PDF
Cortes P., Sala F. (Author)
259
Orbits of Stars in a Model with Three First Integrals
PDF
Diara C. M., Maciel W. J. (Author)
264
Determination of the Galactic Rotation Curve Based on Planetary Nebulae
PDF
Cappa de Nicolau C., Olano C. A. (Author)
269
H I distribution in the region of the Lac OB1 association.
PDF
Poppel W. G. L., Marronetti P., Benagalia P. (Author)
273
Distribution of the Atomic Component in the Local Interstellar Medium. the Warm Neutral Intercloud Medium (wnm).
PDF
Teixeira R., Benevides-Soares P., Requieme Y., Rapaport M. (Author)
278
Reduction of Meridian Observations by the Overlap Method
PDF
Cardona O., Corona-Galindo M. (Author)
281
The Method of Eichhorn with Non-Standard Projections for a Single Plate
PDF
Hormaechea J. L., Perdomo R. (Author)
286
Second Rio Grande catalogue (RG2).
PDF
Clauzet L. B. F., Benevides-Soares P., Débarbat S., Chollet F. (Author)
291
Astrolabe 45° zenith distance observations of α Sco A.
PDF
Perdomo R., Nievas E., Hormaechea J. L. (Author)
293
An FK5 analysis from RG1 Astrolabe Catalogue.
PDF
Martin V. A. F., Clauzet L. B. F. (Author)
297
Colour and Magnitude Function for Absolute Declination in Astrolabe Data
PDF
Schuster W. J. (Author)
300
Uvby-B Photometry of High Velocity Stars. Photometric Parallaxes and Preliminary Kinematic Results
PDF
Tignanelli H., Vazquez R. A., Mostaccio C., Gordillo S., Feinstein A., Plastino A. (Author)
305
Numerical taxonomy for open clusters.
PDF
Xiaojun C., Matsuura O. T. (Author)
309
Rotational Evolution and Magnetic Field of AP Stars
PDF
Opher R., Valio A. (Author)
314
Subjeans Condensations due to a Thermal Instability
PDF
Klapp J., Corona-Galindo M. G. (Author)
317
Pulsation, Mass Loss and the Upper Mass Limit
PDF
de Araujo J. C. N., Opher R. (Author)
322
The Evolution of Population III Objects
PDF
Benvenuto O. G., Horvath J. E. (Author)
325
Strange Stars, Neutron Stars and Pulsar Emission
PDF
Jablonski F. J. (Author)
329
Search for photometric pulsations from SN 1987A.
PDF
Benvenuto O. G., Horvath J. E. (Author)
331
Strange matter, detonations and SN 1987A.
PDF
Kepler S. O. (Author)
335
Structure and evolution of white dwarfs.
PDF
Vázquez R. A., Feinstein A. (Author)
346
Initial masses of WR stars in open clusters.
PDF
Clariá J. J., Lapasset E., Minniti D. (Author)
351
Estructura del diagrama HR para gigantes rojas de poblacion I de masas intermedias.
PDF
Gregorio-Hetem J. C., Lépine J. R. D., Ortiz R. P. (Author)
356
The luminosity function of the stars embedded in the Chamaeleon I and in the Rho Ophiuchi molecular clouds.
PDF
Alvarez M., Belmonte J. A., Chevreton M., Dolez N., Roca Cortes T., Auvergne M., Mangeney A., Goupil M. J., Michel E. (Author)
361
Stellar Seismology from Photometric Measurements
PDF
Kanaan A., Kepler S. O. (Author)
365
An analysis of the light curve of the ZZ Ceti star G117-B15A.
PDF
Diaz M. P., Steiner J. E. (Author)
369
Photometry of nova Muscae 1983.
PDF
Feinstein A. (Author)
373
Be stars in open clusters.
PDF
Gómez M., Lapasset E., Ahumada J., Fariñas R. (Author)
376
Analisis de curvas de luz de binarias de contacto.
PDF
García J. M., Vaz L. P. R., Giménez A. (Author)
381
A study of the Algol-type binary AS Velorum using Strömgren four-colour photometry.
PDF
García J. M., Giménez A., Claret A. (Author)
382
Photometric analysis of the semidetached binary system S Velorum.
PDF
Baptista R., Jablonski F. J., Steiner J. E. (Author)
383
The eclipsing cataclysmic variable NSV 12615 (V4041 Sgr).
PDF
Rodriguez E., Rolland A., López de Coca P., Garrido R., Garcia-Lobo E. (Author)
386
Internal consistency test about δm1 metallicity index for SX Phe and high amplitude δ Sct stars.
PDF
Claret A., Rodriguez E., Garcia J. M. (Author)
389
Comparison between standard evolution models for high amplitude δ Sct stars.
PDF
Alvarez M., Sareyan J. P., Michel R. (Author)
391
Short period variations of LQ And.
PDF
Garcia J. R., Cebral R., Digiorgio F., Magaldi D., Romano P., Scoccimarro E. R., Wahnon P., Zimmermann M. (Author)
395
On the distinction between δ Scuti and SX Phoenicis variable stars.
PDF
Alvarez M., Hubert-Delplace A. -M., Arsenijevic J., Ballereau D., Chauville J. (Author)
398
Long and short period variations of some Be stars.
PDF
González-Bedolla S. (Author)
401
Photometric observations of short period variable stars.
PDF
Barbuy B., Perrin M. -N., Cayrel R. (Author)
406
Derivation of stellar parameters using a grid of synthetic spectra.
PDF
Erdelyi M. M., Barbuy B. (Author)
409
Synthetic CA II Triplet Lines
PDF
Lorenz-Manins S., Landabeny S. J. C. (Author)
413
Envelopes of Peculiar Late Type Stars
PDF
Giovannini O., Jr., Kepler S. O., Kanaan A. (Author)
417
Determination of radial velocity variations in the Ap star HR 1217.
PDF
Gonçalves S. A., Pacheco E. J. (Author)
421
The behaviour of Ca II lines of giants and supergiants in the light of stellar winds.
PDF
Leguísamo G., Garat A. (Author)
424
Spectroscopic analysis of 48 Lib in the ultraviolet range.
PDF
Baptista R., Steiner J. E. (Author)
429
Accretion disk image reconstruction in cataclysmic variables.
PDF
Canalle J. B. G., Opher R. (Author)
433
The accretion column of DQ Herculis binaries.
PDF
Felsteiner J., Opher R. (Author)
437
X-ray spectrum from the accretion columns of magnetic white dwarfs.
PDF
Arauxo F. X. (Author)
440
Nonspherical Radiation Driven Wind Models Applied to Be Stars
PDF
Jatenco-Pereira V., Opher R. (Author)
445
Mass Ejection from Old and Young Stars and the Sun
PDF
de Freitas Pacheco J. A., dell'Aglio D., da Costa R. (Author)
449
Nova Centauri 1986 - a spectroscopic study.
PDF
Sartori M. J., de La Reza R. (Author)
450
The Hα line initial evolution in the SN 1987A.
PDF
Figueiredo N., Villela T., Jayanthi U. B., Wuensche C. A., Neri J. A. C. F., Cesta R. C. (Author)
459
Gamma-ray observations of SN 1987A.
PDF
Aquilano R., Castagnino M., Lara L. (Author)
463
Quasi-periodic oscillations in X-ray bursters.
PDF
Janot-Pacheco E. (Author)
467
On the hard, pulsating X-ray transients.
PDF
da Silva L. A. L. (Author)
471
The classification of SN 1987A.
PDF
de Gouveia dal Pino E., Opher R. (Author)
477
A Possible Origin of the H-H Objects in Young Stellar Outflows
PDF
Sestokas Filho B., Scalise E., Jr. (Author)
481
Monitoring of water masers from IRAS sources.
PDF
Gregório-Hetem J. C., Lépine J. R. D., Ortiz R. P., Sestokas Filho B. (Author)
486
A search for water masers associated with Herbig-Haro objects.
PDF
Rossi S. C. F., Benevides-Soares P., Barbuy B. (Author)
489
Grain Growth in Collapsing Clouds
PDF
Gómez Balboa A., Scalise E., Jr. (Author)
494
Results of recent studies of the temporal variability of silicon monoxide masers.
PDF
de Almeida A. A. (Author)
499
Possible OH+ submillimeter emission in Orion-KL.
PDF
Opher R. (Author)
504
Radio Brightness Temperatures and Angular Dimensions of Recently Predicted Vl-Bi Small-Scale Structures
PDF
Sabalisck N. S. P., Abraham Z. (Author)
507
Studies at high frequencies of the 30 Doradus and RCW 57 regions.
PDF
Amaral L. H., Abraham Z. (Author)
511
Radio map of the region G331.5-0.1 at 22 GHz.
PDF
de Freitas Pacheco J. A., Dell'Aglio Dias da Costa R., Codina-Landaberry S. J. (Author)
515
The peculiar object He2-104.
PDF
Maciel W. J., de Freitas Pacheco J. A., Codina-Landaberry S. J. (Author)
517
Strongly metal deficient planetary nebulae.
PDF
de Gouveia Dal Pino E. M., Opher R. (Author)
521
The origin of the filaments in the Crab Nebula.
PDF
Rovira M. G. (Author)
525
Actividad Solar Desde EL Espacio
PDF
Jatenco-Pereira V., Steinolfson R. S., Mahajan S., Tajima T. (Author)
538
Nonlinear Propagation of Mag Waves Through the Transition Region
PDF
Chian A. C. L. (Author)
541
Nonthermal Radiation Processes in Interplanetary Plasmas
PDF
de Azevedo C. A., de Assis A. S. (Author)
545
Global Alfven Waves in Solar Physics: Coronal Heating
PDF
Barth C. S., Livi S. H. B. (Author)
549
Magnetic Bipoles in Emerging Flux Regions on the Sun
PDF
Sawant H. S., Cecatto J. R. (Author)
552
Fine Structure in the Mm-Wavelength Spectra of the Active Region
PDF
Trevisan R. H., Sawant H. S., Kalman B., Gesztelyi L. (Author)
557
Homologous and Homologous like Microwave Solar Radio Bursts
PDF
Sawant H. S., Lattari C. J. B., Benz A. O., Dennis B. R. (Author)
562
Time Delays Between Decimetric Type-Iii Bursts and Associated Hard X-Rays
PDF
Leister N. V. (Author)
567
Solar Diameter Measurements
PDF
Ferraz-Mello S. (Author)
569
Regular Motions of Resonant Asteroids
PDF
Brunini A. (Author)
581
On the Determination of Perturbations in Planetary Motions
PDF
Tsuchida M. (Author)
585
Libration Motion of Asteroid (279) Thule
PDF
Licandro J., Gallardo T., Tancredi G. (Author)
590
Photometric Observations of Asteroids 31 Euphrosyne, 118 Peito, 13 Egeria, 196 Philomena, and 471 Papagena
PDF
Gil-Hutton R. (Author)
593
Photoelectric Photometry of Asteroid 100 Hekate
PDF
Brunini A. (Author)
597
Dynamical Study of the Galactic Influence on the A(orig) Distribution of the Long Period Comets
PDF
Gordillo S., Mostaccio C., Orellana R. B., Plastino A., Tignanelli H., Vucetich H. (Author)
601
On Searching for Asteroid Families I. Hirayama Families
PDF
Silva A. M., Mirabel I. F. (Author)
604
Produccion Gaseosa del Cometa Halley: Erupciones Y Fotodisociacion del Radical OH
PDF
Matsuura O. T., Voelzke M. R. (Author)
609
Halley at Opposition
PDF
Mendoza C. (Author)
613
Physical and Chemical Processes Opacity Project: an Overview and Some Preliminary Results
PDF
Carvalho J. C. (Author)
624
Kinematic Dynamo Action in the Presence of a Large Scale Velocity
PDF
Medina-Tanco G. A., Opher R. (Author)
629
Non-Linear Effects of Self Generated Alfven Waves in Oblique Shocks and Cosmic Ray Acceleration Efficiency
PDF
Braga J., Covault C. E., Manandhar R., Grindlay J. E. (Author)
633
Hard X-ray arcmin imaging with the EXITE telescope.
PDF
Cardona O., Furenlid L., Cornejo A. (Author)
638
Construction and Tests of an Ebert-Fastie Spectrograph with Optical Fibers
PDF
Carrara E. A., Abraham Z. (Author)
643
Design of VLBI Array in South America
PDF
Lepine J. R. D., Raffaelli J. C. (Author)
648
The University of SAO Paulo 2.4 Meter Millimetric Antenna
PDF
Sawant H. S., Rosa R. R. (Author)
651
High Sensitivity, High Frequency and High Time Resolution Decimetric Spectroscope
PDF
Beraldo N., Scalise E., Jr., Lepine J. R. D. (Author)
655
The Acousto-Optic Spectrometer of the 2.4M Iag-Usp Radio Telescope
PDF
Lepine J. R. D., Gneiding C., Laporte R., Dias A. O., Epchtein N. (Author)
659
A Near-Infrared Photometer for the Laboratorio Nacional de Astrofisica
PDF
Barroso Dos Reis H., Codina-Landaberry S. J. (Author)
662-666
A concave grating Cassegrain spectrograph project.
Dos Reis H. B., Codina-Landaberry S. J. (Author)
662
A Concave Grating Cassegrain Spectrograph Project
PDF
Archarov A. A., Novikov V. V., Rumyantsev K. V., Polojentsev D. D., Potter H. I., Yagudin L. I., Zelaya J. A., Zalles R. F. (Author)
667
The Soviet-Bolivian Astronomical Observatory in Tarija, Plans and Some Results of Investigations
PDF
Marraco H. G. (Author)
669
The la Plata Astronomical Data Center
PDF
Tignanelli H. L., Vazquez R. A., Mostaccio C., Gordillo S., Plastino A. (Author)
674
Homogeneity and Entropy
PDF
Neri J. A. C. F., Jayanthi U. B., Alves A. M. R. (Author)
677
Sistema de Gravacao Dados Digitais
PDF
Bosio M. A. (Author)
681
Image Processing Software
PDF
Moreno H. (Author)
683
Chilean Astronomers and the Birth of Cerro Tololo
PDF
Tignanelli H. L. (Author)
687
Ensenanza de la Astronomia a Traves de Metodos no Tradicionales
PDF
Voelzke Marcos Rincon, Matsuura Oscar T. (Author)
746-746
Parabolic Envelopes in Comet Halley
...