Abstract
During a coordinated observations of 2S1636-536 with EXOSAT, Tenma and the 1.4 metre Danish telescope at La Silla, a single burst was detected at all three observatories. The burst was bright with a peak flux of 6 × 10-8 ergs/cm2/s and rapid expansion of the blackbody radius. EXOSAT and Tenma agree closely in the values of blackbody radius, temperature and flux which are very similar to the three bursts recently reported by Tenma which appear to reach the Eddington flux limit at their peak. Preliminary analysis of the X-ray and optical timing data reveal that this burst is unusual in having a sharp leading edge in both X-ray and optical data and a very short X-ray-optical delay compared with those previously observed. If confirmed, this result puts significant restraints on the location of the optical reprocessing site.
Similar content being viewed by others
References
Pedersen, H., Lub, J., Inoue, H., Koyama, K., Makishima, K., Matsuoka, M., Mitsuda, K., Murakami, T., Oda, M., Ogawara, Y., Ohashi, T., Shibazaki, N., Tanaka, Y., Hayakawa, S., Kuneida, H., Makino, F., Masai, K., Nagase, F., Tawara, Y., Miyamoto, S., Tsunemi, H., Yamashita, K., Kondo, I., Jernigan, J.G., Van Paradijs, J., Beardsley, A., Cominsky, L., Doty, J., and Lewin, W.H.G., 1982. Ap. J. 263, 325.
Matsuoka, M., Mitsuda, K., Ohashi, T., Inoue, H., Koyama, K., Makino, F., Makishima, K., Murakami, T., Oda, M., Ogawara, Y., Shibazaki, N., Tanaka, Y., Tsuno, K., Miyamoto, S., Tsunemi, H., Hamashita, Y., Hayakawa, S., Kuneida, H., Masai, K., Nagase, F., Tawara, Y., Kondo, I., Cominsky, L., Jernigan, J.G., Lawrence, A., Lewin, W.H.G., Pedersen, H., Motch, C., and van Paradijs, J., 1984. Ap. J.
McClintock, J.E., Canizares, C.R., Li, F.K., Grindlay, J.E., 1980. Ap. J. (Letters), 235, L81.
McClintock, J.E., Grindlay, J.E., Canizares, C.R., van Paradijs, J., Cominsky, L., Li, F.K. and Lewin, W.H.G., 1979. Nature, 279, 47.
Pedersen, H., van Paradijs, J., Motch, C., Cominsky, L., Lawrence, A., Lewin, W.H.G., Oda, M., Ohashi, T., Matsuoka, M., 1982. ap. J., 263, 340.
Inoue, H., Waki, I., Koyama, K., Matsuoka, M., Ohashi, T., Tanaka, Y., Miyamoto, S. and Tsunemi, H. 1984. Publ. Astron. Soc. Japan, in press.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Turner, M.J.L., Breedon, L.M., Ohashi, T. et al. Coordinated optical-EXOSAT-tenma observations of a burst from 2S1636-536. Space Sci Rev 40, 249–253 (1985). https://doi.org/10.1007/BF00212894
Issue Date:
DOI: https://doi.org/10.1007/BF00212894