Astronomy & Astrophysics

Research outputs

  1. 1998
  2. Published

    Optical and near-infrared follow-up observations of GRB980329

    Palazzi, E., Pian, E., Masetti, N., Nicastro, L., Vreesvijk, P., Galama, T. J., Groot, P., Frontera, F., Della Valle, M., Lidman, C. & 27 othersKouveliotou, C., Pizzichini, G., van Paradijs, J., Pedersen, H., Mannucci, F., Di Martino, M., Diercks, A. H., Deutsch, E. W., Amati, L., Benetti, S., Castro-Tirado, A. J., Clasen, J., Costa, E., Dal Fiume, D., Falomo, R., Feroci, M., Fynbo, J., Heise, J., "In't Zand", J. J. M., Piro, L., Robinson, C., Tornikoski, M., Valtaoja, E., Zapatero-Osorio, M. R., Lamb, D., Quashnock, J. & van den Berk, D. E., 1998, In : Astronomy and Astrophysics. 336, p. p. L95-L99

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Radio optical and photopolarimetric observations of Markarian 421 around the great 1996-97 outburst

    Tosti, G., Fiorucci, M., Luciani, M., Efimov, Y. S., Shakhovskoy, N. M., Valtaoja, E., Teräsranta, H., Sillanpää, A., Takalo, L. O., Villata, M. & 3 othersRaiteri, C. M., De Francesco, G. & Sobrito, G., 1998, In : Astronomy and Astrophysics. 339, p. 41-51

    Research output: Contribution to journalArticleScientificpeer-review

  4. 1997
  5. Published

    Is the longitudinal distribution of solar flares nonuniform?

    Jetsu, L., Pohjolainen, S., Pelt, J. & Tuominen, I., 1997, In : Astronomy and Astrophysics. 318, p. 293-307

    Research output: Contribution to journalArticleScientificpeer-review

  6. 1996
  7. Published

    Monitoring of the Einstein cross with the Nordic Optical Telescope

    Östensen, R., Refsdal, S., Stabell, R., Teuber, J., Emanuelsen, P., Festin, L., Florentin-Nielsen, R., Gahm, G., Gullbring, E., Grundahl, H. & 8 othersHjort, J., Jablonski, M., Jaunsen, A., Kaas, A., Karttunen, H., Kotilainen, J., Laurikainen, E. & Lindgren, H., 1996, In : Astronomy and Astrophysics. 309, p. 59-64

    Research output: Contribution to journalArticleScientificpeer-review

  8. Published

    SEST observations of extragalactic radio sources at 90 and 230 GHz

    Tornikoski, M., Valtaoja, E., Teräsranta, H., Karlamaa, K., Lainela, M., Nilsson, K., Kotilainen, J., Laine, S., Lähteenmäk, A., Knee, L. B. G. & 1 othersBotti, L. C. L., 1996, In : Astronomy and Astrophysics.

    Research output: Contribution to journalArticleScientificpeer-review

  9. Published

    Solar microwave burst classification and correlation with soft X-rays

    Pohjolainen, S., Valtaoja, E. & Urpo, S., 1996, In : Astronomy and Astrophysics. 306, p. 973-980

    Research output: Contribution to journalArticleScientificpeer-review

  10. Published

    Solar microwave burst emission relation to X-ray radiation

    Pohjolainen, S., Valtaoja, E. & Urpo, S., 1996, In : Astronomy and Astrophysics. 314, p. 947-956

    Research output: Contribution to journalArticleScientificpeer-review

  11. Published

    Very cold dust associated with molecular gas

    Laureijis, R., Haikala, L., Burgdorf, M., Clark, F., Liljeström, T., Mattila, K. & Prusti, T., 1996, In : Astronomy and Astrophysics. 315, p. p. L317-L320

    Research output: Contribution to journalArticleScientificpeer-review

  12. 1995
  13. Published

    Gamma radiation from radio shocks in AGN jets

    Valtaoja, E. & Teräsranta, H., 1995, In : Astronomy and Astrophysics. 297, 1, p. p. L13-L16

    Research output: Contribution to journalArticleScientificpeer-review

  14. Published

    L1780: a cometary globule associated with Loop I

    Toth, L. V., Haikala, L., Liljeström, T. & Mattila, K., 1995, In : Astronomy and Astrophysics. 295, p. 755-766

    Research output: Contribution to journalArticleScientificpeer-review

  15. Published

    Radio and optical evolution of the Seyfert galaxy NGC 1275

    Nesterov, N. S., Lyuty, V. M. & Valtaoja, E., 1995, In : Astronomy and Astrophysics. 296, 3, p. 628-632

    Research output: Contribution to journalArticleScientificpeer-review

  16. 1994
  17. Published

    A simultaneous radio-optical flare in BL Lacertae

    Tornikoski, M., Valtaoja, E., Teräsranta, H. & Okyudo, M., 1994, In : Astronomy and Astrophysics. 286, p. 80-83

    Research output: Contribution to journalArticleScientificpeer-review

  18. Published

    Brightness temperatures and viewing angles for extragalactic radio sources: a test of unification schemes for active galactic nuclei

    Teräsranta, H. & Valtaoja, E., 1994, In : Astronomy and Astrophysics. 283, p. 51-58

    Research output: Contribution to journalArticleScientificpeer-review

  19. Published

    Correlated radio and optical variations in a sample of AGN

    Tornikoski, M., Valtaoja, E., Teräsranta, H., Smith, A. G., Nair, A. D., Clements, S. D. & Leacock, R. J., 1994, In : Astronomy and Astrophysics. 289, 3, p. 673-710

    Research output: Contribution to journalArticleScientificpeer-review

  20. Published

    Sub-milliarcsecond structure of quasar cores and characteristic linear sizes of shocks inferred from radio continuum flux density variations

    Valtaoja, E. & Teräsranta, H., 1994, In : Astronomy and Astrophysics. 289, p. 35-38

    Research output: Contribution to journalArticleScientificpeer-review

  21. 1993
  22. Published

    Another active period in the optical and radio lightcurves of the blazar 3C345: indications for a 'lighthouse effect' due to jet rotation

    Schramm, K-J., Borgeest, U., Camenzind, M., Valtaoja, E., Wagner, S. J., Bade, N., Dreissigacker, O., Heidt, J., Hoff, W., Kayser, R. & 8 othersKühl, D., v.Linde, J., Linnert, M. D., Pelt, J., Schramm, T., Sillanpää, A., Takalo, L. O. & Vigotti, M., 1993, In : Astronomy and Astrophysics. 278, p. 391-

    Research output: Contribution to journalArticleScientificpeer-review

  23. Published

    Optical circular polarization in two BL Lac objects

    Valtaoja, L., Karttunen, H., Valtaoja, E., Shakhovskoy, N. M. & Efimov, Y. S., 1993, In : Astronomy and Astrophysics. 273, p. 393-396

    Research output: Contribution to journalArticleScientificpeer-review

  24. 1992
  25. Published

    Five years monitoring of extragalactic radio sources III. Generalized shock model and the dependence of variability on frequency

    Valtaoja, E., Teräsranta, H., Urpo, S., Nesterov, N. S., Lainela, M. & Valtonen, M., 1992, In : Astronomy and Astrophysics. 254, 1/2, p. 71-79

    Research output: Contribution to journalArticleScientificpeer-review

  26. Published

    Five years monitoring of extragalactic radio sources IV. Variability statistics and unified models for AGN

    Valtaoja, E., Teräsranta, H., Urpo, S., Nesterov, N. S., Lainela, M. & Valtonen, M., 1992, In : Astronomy and Astrophysics. 254, 1/2, p. 80-88

    Research output: Contribution to journalArticleScientificpeer-review

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