1. Pulsed gamma rays from Geminga

   • K. S. Cheng
   • Y. Q. Ma

   OriginalPaper Pages: 1 - 7

2. Energy equilibrium in coronal magnetic loops -reinvestigated

   • Suresh Chandra
   • Lalan Prasad

   OriginalPaper Pages: 9 - 38

3. Strömgren and Hβ photometry of OB stars in Serpens

   • N. Kaltcheva
   • P. Kuntchev

   OriginalPaper Pages: 39 - 45

4. Photon path-length distribution function (II)

   • Tõnu Viik

   OriginalPaper Pages: 47 - 63

5. Once more on quasar periodicities

   • Ágnes Holba
   • I. Horváth
   • G. Paál

   OriginalPaper Pages: 65 - 83

6. Note on the confused designation of NGC 4496

   • F. X. Hu
   • H. J. Su
   • G. X. Wu

   OriginalPaper Pages: 85 - 90

7. Emission line profiles of AGNs and QSOs

   • D. Basu

   OriginalPaper Pages: 91 - 106

8. Magnetic field strength estimation in synchrotron radiation sources

   • A. -H. Zhou

   OriginalPaper Pages: 107 - 111

9. Nonlinear stability of Halley cometosheath with transverse plasma motion

   • Krishna M. Srivastava
   • Bruce T. Tsurutani

   OriginalPaper Pages: 113 - 125

10. Nonsingular cosmological model with background field in flat space-time theory of gravitation

    • Walter Petry

    OriginalPaper Pages: 127 - 145

11. Hβ luminosities of planetary nebula central stars

    • W. J. Maciel
    • J. O. Cazetta

    OriginalPaper Pages: 147 - 155

12. Connection between X-ray and optical variability in NGC 4151

    • V. L. Oknyanskij

    OriginalPaper Pages: 157 - 169

13. Cylindrically symmetric and inhomogeneous cosmological models with viscous fluid, heat flux and electromagnetic field

    • Can Battal Kilinç

    OriginalPaper Pages: 171 - 179

14. The complementarity of Doppler imaging and photometric starspot modelling

    • E. Budding
    • M. Zeilik

    OriginalPaper Pages: 181 - 190

15. On the further observations ofB _E /shell star V 923 Aql

    • L. Denizman
    • T. Ak
    • D. Kocer

    OriginalPaper Pages: 191 - 203

16. On structure formation in the universe

    • A. Satya Narayanan

    OriginalPaper Pages: 205 - 212

17. A detached binary system BK Pegasi

    • Osman Demircan
    • Yalçin Kaya
    • Zeki Tüfekçioğlu

    OriginalPaper Pages: 213 - 223

18. On the nature of V630 Cassiopeiae

    • Brian Warner

    Letter Pages: 225 - 226

19. Sunspot observations at KAAU solar observatory

    • Y. M. Almleaky
    • H. M. Basurah
    • F. Y. Kamal

    Letter Pages: 227 - 230

20. Electromagnetic radiation outbursts from the collision of P/Shoemaker-Levy 9 comet with Jupiter

    • Yu -Qing Lou

    Letter Pages: 231 - 234

21. Planck's universe and Mach's principle

    • M. S. Berman

    Letter Pages: 235 - 236

22. Alternative method to solve soliton envelope equation

    • D. K. Callebaut
    • M. F. El-Sayed

    Letter Pages: 237 - 240

23. Self-focusing of electromagnetic radiation in electron-positron ion plasma

    • V. I. Berezhiani
    • S. M. Mahajan

    Letter Pages: 241 - 246

24. Weakly ionized cosmic gas: ionization and characterization

    • M. Rosenberg
    • D. A. Mendis
    • V. W. Chow

    Letter Pages: 247 - 253

25. Towards a new maximum of OJ 287?

    • F. Montagni
    • M. Maesano
    • R. Nesci

    Letter Pages: 255 - 257

26. A new low-frequency electrostatic mode in a nonuniform electron-positron plasma

    • L. N. Tsintsadze
    • N. L. Tsintsadze
    • L. Stenflo

    Letter Pages: 259 - 261

27. Book reviews

    • D. Burgess
    • F. D. Kahn
    • F. P. Keenan

    BookReview Pages: 263 - 270

28. List of forthcoming papers

    Announcement Pages: 271 - 271