Vol. 43 No. 1 (2007)

García-Rojas J., Esteban C., Peimbert A., Rodríguez M., Peimbert M., Ruiz M. T. (Author)

3-31

The chemical composition of the Galactic H II regions M8 and M17. A revision based on deep VLT echelle spectrophotometry

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Vukotic B., Arbutina B., Urosevic D. (Author)

33-43

On the Magnetic Field Evolution in Shell-like Supernova Remnants

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Tovmassian H. M., Tiersch H., Gaghik H., Tovmassian G. H., Chavushyan V. H., Neizvestny S., Pramskij A. G., Torres-Papaqui J. P., Rozas M. (Author)

45-57

Photometric and spectroscopic study of Shakhbazian compact galaxy groups ShCG 104, ShCG 120, ShCG 223, and ShCG 245

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Zaninetti L. (Author)

59-87

Physical mechanisms that shape the morphologies of extragalactic jets

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Cruz F., Aguilar L. (Author)

89-94

Tidal heating: A restricted three body problem investigation of the Spitzer and Weinberg approximations

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Cruz F., Velázquez H., Aceves H. (Author)

95-100

Morphology and Kinematics of Gravitational Cold Collapse around a Central Supermassive Black Hole

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Zhang X. -G., Dultzin-Hacyan D., Wang T. -G. (Author)

101-121

The properties of optical FeII emission lines of AGN with double-peaked broad emission lines

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Ballesteros-Paredes J., Hartmann L. (Author)

123-136

Remarks on Rapid vs. Slow Star Formation

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Orlov V. G., Voitsekhovich V. V., Sánchez L. J., Garfias F. (Author)

137-140

First Speckle Interferometry Measurements of Binary Stars at the OAN-Tonantzintla

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Docobo J. A., Andrade M., Tamazian V. S., Costado M. T., Lahulla J. F. (Author)

141-147

Binary Star Speckle Measurements with the 1.52-m telescope at Calar Alto

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Rodríguez L. F., Zapata L., Ho P. T. P. (Author)

149-154

Radio Continuum Sources Associated with AB Aur

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López-Chico T., Salas L. (Author)

155-171

Mass determination for T Tauri stars from JHK Photometry

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Rodríguez L. F., Gómez Y. (Author)

173-177

Proper Motions of the Ansae in the Planetary Nebula NGC7009

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Roche N. D. (Author)

179-189

The Kinematics of Arp 295 in Hα Emission: an Interacting Galaxy with Highly Asymmetric Rotation

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Huerta E. A., Mendoza S. (Author)

191-202

A simple accretion model of a rotating gas sphere onto a Schwarzschild black hole

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Firmani C., Avila-Reese V., Ghisellini G., Ghirlanda G. (Author)

203-216

Long Gamma-Ray Burst prompt emission properties as a cosmological tool

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Peña J. H., Sareyan J. P., Cervantes-Sodi B., Peña R., Alvarez M., Cano M., Sorcia M. A. (Author)

217-224

HD 115520, a new δ Scuti star

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Hiriart D., Salas L. (Author)

225-231

Water Vapor Corrections to Mid-Infrared Photometry

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Research articles