On the possibility of creating a radio-astronomical inertial coordinate system based on the measurement of arcs between QSOs with the aid of VLBI A. F. DravskikhA. M. FinkelsteinG. A. Krasinsky OriginalPaper Pages: 255 - 266
A search for discrete gamma-ray sources of energy greater than 2×1012 eV A. A. StepanianB. M. VladimirskyV. P. Fomin OriginalPaper Pages: 267 - 282
A classification of the available astrophysica data of particularHii regions C. Goudis OriginalPaper Pages: 283 - 300
The evolution of massive close binaries J. -P. de GrèveC. de LooreW. Sutantyo OriginalPaper Pages: 301 - 312
Progress in ultraviolet stellar spectrophotometry with S59 C. De JagerH. J. G. L. M. LamersK. A. Van Der Hucht OriginalPaper Pages: 313 - 325
XUV emission from above the solar west limb near 20:00 UT, January 17, 1974 R. Tousey OriginalPaper Pages: 327 - 336
Evidence for a temperature rise in the outer layers of α Lyrae, fromCopernicus observations of lyman-α Françoise PraderieEduardo SimonneauTheodore P. Snow Jr. OriginalPaper Pages: 337 - 343
Computedn=2 level populations in helium-like ions from Cv to Nixxvii R. MeweJ. Schrijver OriginalPaper Pages: 345 - 352
High temperature plasma inβ Lyrae, observed fromCopernicus Yoji KondoMargherita HackRonald S. Polidan OriginalPaper Pages: 353 - 358
Ultraviolet solar identifications based on extended absorption series observed in the laboratory spectrum of Sii C. E. MooreR. TouseyS. G. Tilford OriginalPaper Pages: 359 - 364
Discrepancies between calculated and observed Fexvii and Nixix solar coronal lines M. LoulergueH. Nussbaumer OriginalPaper Pages: 365 - 368
Density dependence of the line emission of boron-like coronal ions G. ElwertP. K. Raju OriginalPaper Pages: 369 - 375
Plasma polarization shift: An improved quantum-mechanical treatment S. Volonté OriginalPaper Pages: 377 - 380
An anomalous velocity neutral hydrogen structure near the galactic center I. F. MirabelK. C. Turner OriginalPaper Pages: 381 - 394
Gravitational potential energy of a disk-sphere pair of galaxies G. M. Ballabh OriginalPaper Pages: 407 - 418
The cascading of cosmic-ray nuclei in various media Phyllis S. FreierC. J. Waddington OriginalPaper Pages: 419 - 436
On pair production in intense electromagnetic fields occurring in astrophysical situations J. K. DaughertyI. Lerche OriginalPaper Pages: 437 - 445
Reexamination of the correlation of galaxies and QSO's Peter D. Noerdlinger OriginalPaper Pages: 457 - 468
Application of the theory of jet stream to the asteroidal belt Wing-Huen IP OriginalPaper Pages: 475 - 481
Resonant interactions between fast particles and collision-dominated MHD waves D. B. Melrose OriginalPaper Pages: 483 - 493
A proto-planetary contribution to interstellar dust D. A. MendisN. C. Wickramasinghe Letters to the Editor Pages: L13 - L17