Vol. 37 No. 2 (2001)

B. E. Sabogal-Martínez, J. A. García-Varela, M. A. Higuera G., A. Uribe, E. Brieva

105-114

Membership in the Region of the Open Cluster NGC 2244

PDF

S. Kimeswenger

115-145

Optical Coordinates of Southern Planetary Nebulae

PDF

A. Riera, R. López, A. C. Raga, G. Anglada, R. Estalella

147-157

The Transverse Velocity Structure of the HH 111 Jet

PDF

I. N. Azcárate

159-164

Response of a Balloon-Borne Omnidirectional Detector to the Atmospheric Secondary Charged Cosmic Radiation at a Place of 11.5 GV Geomagnetic Cut-Off

PDF

R. Michel, J. Bohigas, E. Arroyo, S. Zazueta

165-171

The Meteorological Stations of the 1.5 and 0.84 m Telescopes of the OAN: Description and Results

PDF

H. M. Tovmassian, O. Yam, H. Tiersch

173-177

Hickson Compact Groups: The Cores of Elongated Loose Groups

PDF

J. F. Ling, P. Magdalena, C. Prieto

179-186

Perturbations by Mass Loss in the Orbital Elements of γ Persei and α Centauri

PDF

W. J. Schuster, L. Parrao

187-200

The Atmospheric Extinction of San Pedro Mártir

PDF

R. Avila, L. F. Rodríguez, S. Curiel

201-211

VLA Detection of the Exciting Sources of the HH 211 and HH 68 Outflows

PDF

D. Hiriart, J. L. Ochoa, B. García

213-220

Wind Power Spectrum measured at the San Pedro Mártir Sierra

PDF

A. M. Watson, W. J. Henney

221-236

An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer

PDF

J. Bohigas

237-260

Infrared Imaging and Optical Imaging and Spectroscopy of (mostly) Type I Planetary Nebulae. I.

PDF

P. F. Velázquez, L. F. Rodríguez

261-267

VLA Observations of Z CMa: The Orientation and Origin of the Thermal Jet

PDF

Research articles