1. To the founder of the journal Astrofizika, academician

   • V. A. Ambartsumyan

   Announcement Pages: 407 - 407

2. To Victor Ambartsumian on his 80th birthday

   • S. Chandrasekhar

   Announcement Pages: 408 - 409

3. Victor Ambartsumian and the IAU

   • Jean-Claude Pecker

   OriginalPaper Pages: 409 - 412

4. Encounters with Victor Ambartsumian one afternoon at the San Lazzaro Degli Armeni island at Venice

   • Leonida Rosino

   BriefCommunication Pages: 412 - 414

5. An observational approach to stellar evolution

   • Guillermo Haro

   OriginalPaper Pages: 414 - 417

6. The OB run-away stars from Sco-Cen and orion reviewed

   • A. Blaauw

   OriginalPaper Pages: 417 - 422

7. Prediction of flare activity of stellar aggregates. I. Theoretical part

   • M. A. Mnatsakanyan
   • A. L. Mirzoyan

   OriginalPaper Pages: 423 - 430

8. Statistical investigation of flare stars. II. Origin of stars of UV Ceti type

   • L. V. Mirzoyan
   • V. V. Ambaryan
   • A. L. Mirzoyan

   OriginalPaper Pages: 430 - 439

9. The Herbig Ae star Lk H_α 233 and the related compact region of star formation

   • A. V. Chernyshev
   • V. S. Shevchenko

   OriginalPaper Pages: 439 - 445

10. V1589 Cyg=B19: A foreground dMe flare star in the direction of NGC 7000

    • B. R. Pettersen
    • M. K. Tsvetkov
    • A. S. Amirkhanyan

    OriginalPaper Pages: 445 - 449

11. Ionization of Ca II by L_α radiation in shells of type II supernovas at a late stage

    • N. N. Chugai

    OriginalPaper Pages: 449 - 454

12. Effect of plasma turbulence in the atmospheres of active stars

    • V. S. Airapetyan
    • A. G. Nikogosyan

    OriginalPaper Pages: 455 - 462

13. Circumstellar dust near luminous blue variables

    • L. Luud
    • T. Tuvikene
    • M. Ruuzalepp

    OriginalPaper Pages: 463 - 468

14. Statistical analysis of galactic H II regions observed in the continuum and in the radio lines H 109_α and H 110_α. I

    • A. V. Oskanyan

    OriginalPaper Pages: 468 - 475

15. Energy loss for photon scattering by free electrons

    • G. A. Arutyunyan
    • V. A. Dzhrbashyan
    • A. G. Nikogosyan

    OriginalPaper Pages: 476 - 483

16. Nonstationary effects of radiation-mechanical synchronism in binary stars. I. Gas-dynamic model

    • V. P. Vasil'ev

    OriginalPaper Pages: 484 - 492

17. Asymmetric energy release in pulsars resulting from motion of vortices

    • D. M. Sedrakyan
    • K. M. Shakhabasyan

    OriginalPaper Pages: 492 - 497

18. Rotation of inner regions of spiral galaxies. III

    • V. L. Afanas'ev
    • A. N. Burenkov
    • O. K. Sil'chenko

    OriginalPaper Pages: 497 - 504

19. Determination of the temperature and the number of O and B stars in condensations observed in galaxies with ultraviolet excess

    • M. A. Kazaryan

    OriginalPaper Pages: 505 - 511

20. Expansion of ring structures in galaxies

    • V. A. Antonov
    • O. A. Zheleznyak

    OriginalPaper Pages: 511 - 518

21. Distribution of gas in galaxies and gravitational stability of gaseous disks

    • A. V. Zasov
    • S. G. Simakov

    OriginalPaper Pages: 518 - 523

22. Thermal instability of nonequilibrium systems

    • A. G. Kritsuk

    OriginalPaper Pages: 524 - 529