Vol. 38 No. 2 (2002)

Fernandes F. C. R., Sawant H. S.

121-126

Morphology and Spectral Behavior of Solar Hard X-Ray Sources

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Stock M. J., Stock J., García J., Sánchez N.

127-140

Quantitative Stellar Spectral Classification. II. Early Type Stars

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Moreno-Corral M. A., Chavarría-K. C., de Lara E.

141-159

CCD Imagery, uvby β Photometry, and the Physical Parameters of Haffner 19

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Rodríguez M., Rodríguez L. F., Gyulbudaghian A. L., May J.

161-167

VLA Detection of the Exciting Sources of the HH 288 and HHL59 Outflows

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Girart J. M., Curiel S., Rodríguez L. F., Cantó J.

169-186

Radio Continuum Observations towards Optical and Molecular Outflows

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Porras A., Rodríguez L. F., Cantó J., Curiel S., Torrelles J. M.

187-192

Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A

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Voitsekhovich V. V., Sánchez L. J., Orlov V. G.

193-198

Effect of Scintillation on Adaptive Optics Systems

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Aceves H., Velázquez H.

199-214

N-Body Simulations of Small Galaxy Groups

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Bustos Fierro I. H., Calderón J. H.

215-224

Small Field CCD Astrometry with a Long Focus Reflector Telescope

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Cruz F., Aguilar L. A., Carpintero D. D.

225-231

A New Method to Find the Potential Center of N-Body Systems

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Watson A. M.

233-249

A Lossy Method for Compressing Raw CCD Images

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Raga A. C., Velázquez P. F., Cantó J., Masciadri E.

251-257

Interpreting the Proper Motions of the HH 34S Bowshock

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Sahade J., West R. M., Skul'Sky M. Yu.

259-274

A Spectrographic Study of the Interacting Eclipsing Binary RY Scuti: An Episode in the Rapid Mass Loss Stage or a Protoplanetary Nebula?

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Rodríguez L. F., Gómez Y., López J. A.

275-278

Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8

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Binette L., González-Gómez D. I., Mayya Y. D.

279-288

Density Gradients and Internal Dust in the Orion Nebula

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Research articles