Free Access
Volume 369, Number 2, April II 2001
Page(s) L29 - L32
Section Letters
Published online 15 April 2001
  1. Apparao, K. M. V. 1994, Space Sci. Rev., 69, 255 [NASA ADS] [CrossRef] [Google Scholar]
  2. Aschenbach, B., Briel, U. G., Haberl, F., et al. 2000, Proc. SPIE, 4012, 731 [NASA ADS] [CrossRef] [Google Scholar]
  3. Corbet, R., Marshall, F. E., & Markwardt, C. B. 2001a, IAU Circ., 7562 [Google Scholar]
  4. Corbet, R. H. D., Marshall, F. E., Coe, M. J., Laycock, S., & Handler, G. 2001b, ApJ, 548, L41 [NASA ADS] [CrossRef] [Google Scholar]
  5. David, L. P., Harnden, J. F. R., Kearns, K. E., & Zombeck, M. V. 1996, The ROSAT High Resolution Imager (HRI) (USRSDC/SAO Calibration Report, February 1996, revised) [Google Scholar]
  6. Dickey, J. M., & Lockman, F. J. 1990, ARA&A, 28, 215 [NASA ADS] [CrossRef] [MathSciNet] [Google Scholar]
  7. Haberl, F., & Sasaki, M. 2000, A&A, 359, 573 [NASA ADS] [Google Scholar]
  8. Mereghetti, S. 2001, in Proceedings Frontier Objects in Astrophysics and Particle Physics, Vulcano, Italy [Google Scholar]
  9. Meyssonnier, N., & Azzopardi, M. 1993, A&AS, 102, 451 [NASA ADS] [Google Scholar]
  10. Pfeffermann, E., Briel, U. G., Hippmann, H., et al. 1987, Proc. SPIE, 733, 519 [Google Scholar]
  11. Russell, S. C., & Dopita, M. A. 1992, ApJ, 384, 508 [NASA ADS] [CrossRef] [Google Scholar]
  12. Sasaki, M., Haberl, F., & Pietsch, W. 2000a, A&AS, 143, 391 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
  13. Sasaki, M., Haberl, F., & Pietsch, W. 2000b, A&AS, 147, 75 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
  14. Strüder, L., Briel, U., Dennerl, K., et al. 2001, A&A, 365, L18 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
  15. Trümper, J. 1982, Advances in Space Research, 2, 241 [Google Scholar]
  16. Turner, M. J. L., Abbey, A., Arnaud, M., et al. 2001, A&A, 365, L27 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
  17. Yokogawa, J., Imanishi, K., Tsujimoto, M., et al. 2000a, ApJS, 128, 491 [NASA ADS] [CrossRef] [Google Scholar]
  18. Yokogawa, J., Imanishi, K., Ueno, M., & Koyama, K. 2000b, PASJ, 52, L73 [NASA ADS] [Google Scholar]
  19. Yokogawa, J., & Koyama, K. 2000, IAU Circ., 7361, 2 [NASA ADS] [Google Scholar]
  20. Yokogawa, J., Torii, K., Imanishi, K., & Koyama, K. 2000c, PASJ, 52, L37 [NASA ADS] [Google Scholar]
  21. Yokogawa, J., Torii, K., Kohmura, T., Imanishi, K., & Koyama, K. 2000d, PASJ, 52, L53 [NASA ADS] [Google Scholar]
  22. Zimmermann, H. U., Becker, W., Belloni, T., et al. 1994, EXSAS User's Guide (MPE report 257) [Google Scholar]

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.