Vol. 11 No. 1 (1985)

W. G. L. Poppel, E. R. Vieira

3

A Southern Atlas of Galactic Hydrogen

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W. J. Schuster, J. Guichard

7-17

Thirteen-color photometry, San Pedro Martir II. 1980-1983.

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M. A. Hobart, R. Peniche, J. H. Pena

19-21

Light maxima of the delta Scuti star HD 94033.

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R. M. Ros

23

Superposition of Stellar Systems

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M. Pena, S. Torres-Peimbert

35-42

On the planetary nebula NGC 3918.

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H. Debehogne, E. R. Netto, J. F. Caldeira, L. E. Machado, G. G. Vieira

43

Observed Asteroids at the GPO La-Silla Chile 1983SEP

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J. Stock

49-49

Catalogue of radial velocities and positions from objective prim plates.

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W. J. Schuster, L. Parrao, S. F. Gonzalez-Bedolla, M. R. Herrera, M. R. Berumen

55-59

Research note : absolute UBV photometry at the Zacatecas Observatory

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A. Sarmiento, J. Canto

61

A Fast and Reliable Method for Computing Free-Bound Emission Coefficients for Hydrogenic Ions

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J. A. Lopez, J. Meaburn

71-72

On the broad Balmer profiles from CAR II and their possible origin asdust scattered lines from eta Carinae.

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A. Sarmiento, M. Peimbert

73-81

On the carbon enrichment of the interstellar medium.

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M. Tapia, M. Roth, L. F. Rodriguez, J. Canto, P. Persi, M. Ferrari-Toniolo, J. A. Lopez

83-89

Multifrequency observations of the region associated with the cometary nebula GM 24.

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J. Melnick, R. Terlevich, M. Moles

91-97

Near infrared photometry of violent star formation regions.

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C. H. Mandrini, R. H. Mendez, O. E. Ferrer, V. S. Niemela

99-102

The spectrographic orbit of the eclipsing binary HH Carinae.

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J. Stock

103-108

Positions and magnitudes in the area of the open cluster NGC 752.

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L. F. Rodriguez, J. A. Garcia-Barreto, Y. Gomez

109-112

Neutral hydrogen and continuum VLA observations of the planetary nebulae NGC 6302 and NGC 2440.

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A. Arellano Ferro

113-120

H-alpha profile variations in variable luminous yellow supergiants.

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D. Dultzin-Hacyan

121-126

Absolute spectrophotometry of quasars : Ton 469 (3C 232) and 3C 249.1.

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H. Debehogne, L. E. Machado

127

Positions of Known and Discovered Asteroids Obtained in La-Silla Chile at the European Southern Observatory 1984SEP

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L. F. Rodriguez, Y. Gomez, J. A. Garcia-Barreto

139-142

A search for radio continuum emission from evolved stars with asymmetric OH maser emission.

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V. S. Niemela, C. H. Mandrini, R. H. Mendez

143-147

The WN4+O8V spectroscopic binary HD 94546.

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J. Bohigas, J. M. Torrelles, J. Echevarria, J. Canto, R. Enriquez, C. Firmani, L. Gutierrez, E. Ruiz, L. Salas

149-157

Optical images of the region around HH1 and HH2 taken with the MEPSICRON system.

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R. H. Mendez, B. F. Marino, J. J. Claria, W. van Driel

159

Erratum - the Progressive Occultation of the Binary Central Star of NGC2346 by a Dense Dust Cloud

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J. Nunez

159

Erratum - Local Galactic Kinematics - an Isothermal Model

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Research articles