Publications in 2001


The authors marked by an asterisk (*) do not belong to the staff of Tuorla observatory.

*Baryshev, Yu.V., Chernin, A.D., Teerikorpi, P. 2001: The cold local Hubble flow as a signature of dark energy - Astronomy and Astrophysics 378, 729 - 734 [C]

Berdyugin A., Teerikorpi P. 2001: "Interstellar polarization at high galactic latitudes from distant stars. V. First results for the siuth Galactic Pole" - Astronomy and Astrophysics 368, 635 - 638 [C]

Berdyugin, A. V., Teerikorpi, P., *Haikala, L., Hanski, M. O., *Knude, J., *Markkanen, T., 2001: Interstellar polarization at high galactic latitudes from distant stars. IV. A catalog of polarization data for the North Galactic Pole Area - Astronomy and Astrophysics 372, 276-280 [C]

*Berdyugina S., Berdyugin A., *Ilyin I, *Tuominen I. 2001: "II Peg: the spot activity cycle", in The 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, eds. R. J. Garsia Lopez et al. - ASP (Astronomical Society of the Pacific) Conference Serie 223, 1195 [D]

*Berdyugina S., Berdyugin A., *Ilyin I, *Tuominen I. 2001: "IM Peg: First surface images", in The 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, eds. R. J. Garsia Lopez et al. - ASP (Astronomical Society of the Pacific) Conference Serie 223, 1201 [D]

Brasser, Ramon 2001: Some properties of a two-body system under the influence of the Galactic Tidal field - Monthly Notices of Royal Astronomical Society, 324, 1109 - 1116 [C]

*Byrd,G., Valtonen, M. 2001: Tides and Markarian activity in Karachentsev disk galaxy pairs - Astrophysical Journal 121, 2943 - 2949 [C]

*Byrd, G., Valtonen, M. 2001: Tidal interaction and nuclear activity in spirals: Karachentsev doubles and Holmberg's spirals with companions (2001) - Bull.AAS (American Astronomical Society), AAS Meeting no. 198, 36.05 [D]

*Byrd,G., Valtonen,M., *Freeman,T. 2001: Observable effects of tidal interactions: Markarian activity in Karachentsev disk galaxies (2001) in Galaxy Disks and Disk Galaxies - ASP (Astronomical Society of the Pacific) conference series 230, eds. J.G. Funes & E.M. Corsini, 437-438 [D]

Chernin A.D. 2001: Cosmic vacuum - Physics-Uspekhi 171, 1153-1175 [C]

Chernin A.D., *Kravtsova A.S., *Zasov A.V., *Arkhipova V.P. 2001: Galaxies with rows - Astronomy Reports 45, 841-853 [C]

Chernin A.D., Valtonen M.J., Zheng J.-Q., *Ossipkov L.P. 2001: Dynamical evolution of N-body gravitating systems starting from Poincare' chaos. - In "Stellar dynamics: from classic to modern" (eds. L.P. Ossipkov, I.I. Nikiforov), SPbU, S-Petersburg, 2001, 431-436 [D]

Chernin A.D., *Zasov A.V., *Arkhipova V.P., *Kravtsova A.S. 2001: Polygonal arms and hexagonal rings: morphology and physical interpretation. - Astronomy and Astrophisics Transactions 20, 139-146 [C]

Chernin A.D., *Zasov A.V., *Arkhipova V.P., *Kravtsova A.S. 2001: Polygonal arm patterns in spiral galaxies. - Ibid, 72-83 [D]

Chernin A.D., *Zasov A.V., *Arkhipova V.P., *Kravtsova A.S. 2001: Polygonal arms and hexagonal rings in disk galaxies. - In "Galaxy disks and disk galaxies" (eds. J.G. Funes S.J., E.M. Corsini) - ASP (Astronomical Society of the Pacific) Conference Serie 230, 147-148 ASP, San Francisco, [D]

*Cortiglioni, F., *Mähönen, P., Hakala, P., *Frantti, T. 2001: "Automated Star-Galaxy Discrimination for Large Surveys" - Astrophysical Journal 556, 937-943 [C]

*Dolgachev V.P., Chernin A.D. 2001: Dark masses in wide triple systems of galaxies. - Communications of Sternberg Astronomical Institute (Moscow University)67, Part II, 312-314 [C]

Ekholm, T., *Baryshev, Yu., Teerikorpi, P., Hanski, M.O., *Paturel, G., 2001: On the quiescence of the Hubble flow in the vicinity of the Local Group. A study using galaxies with distances from the Cepheid PL-relation - Astronomy and Astrophysics 368, L17-L20 [C]

*Falomo, R., Kotilainen, J., *Treves, A. 2001: Near-infrared imaging of the host galaxies of three radio-loud quasars at z = 1.5 - Astrophysical Journal 547, 124 - 128 [C]

*Fynbo, J. U., *Gorosabel, J., *Dall, T.H., *Hjorth, J., *Pedersen, H., *Andersen, M.I., *Møller, P., *Holland, S., *Smail, I., *Kobayashi, N., *Rol, E., *Vreeswijk, P., *Burud, I., *Jensen, B.L., *Thomsen, B., *Henden, A., *Vrba, F., *Canzian, B., *Castro Cerón, J.M., *Castro-Tirado, A.J., *Cline, T., *Goto, M., *Greiner, J., Hanski, M.T., *Hurley, K., *Lund, N., Pursimo, T., *Østensen, R., *Solheim, J., *Tanvir, N., *Terada, H. 2001: The optical afterglow and host galaxy of GRB 000926 - Astronomy and Astrophysics 373, 796 [C]

*Gromov, A., *Baryshev, Yu, *Suson, PO., Teerikorpi, P. 2001: Lemaitre-Tolman-Bondi model: fractility, bang time and the Hubble law - Gravitation and Cosmology 7, 140 - 148 [C]

*Hagen-Thorn, V.A., *Hagen-Thorn, A.V., *Jorstad, S.G., Takalo, L.O., Sillanpää, A., Pursimo, T., *Botwood, B. 2001: Analysis of Multicolor Observations of 3C 66A in 1993 - 1998 - Astrophysics vol. 44: 3, 283-291 [C]

Hanski, M.O., *Theureau, G., Ekholm, T., Teerikorpi, P., 2001: Kinematics of the local universe IX. The Perseus-Pisces supercluster and the Tolman-Bondi model, Astronomy and Astrophysics 378, 345-360 [C]

Hanski, M.O. 2001: Cosmological distances, dynamics, and distributions. A journey to $H_0$ and beyond via 6619 spiral galaxies - Annales Universitatis Turkuensis, ser. AI, vol. 268, Turku, 138 sivua [a]

*Hartman, R. C.; *Villata, M.; *Balonek, T. J.; *Bertsch, D. L.; *Bock, H.; *Böttcher, M.; *Carini, M. T.; *Collmar, W.; *De Francesco, G.; *Ferrara, E. C.; *Heidt, J.; *Kanbach, G.; Katajainen, S.; Koskimies, M.; *Kurtanidze, O. M.; *Lanteri, L.; *Lawson, A.; *Lin, Y. C.; *Marscher, A. P.; *McFarland, J. P.; *McHardy, I. M.; *Miller, H. R.; *Nikolashvili, M.; Nilsson, K.; *Noble, J. C.; *Nucciarelli, G.; *Ostorero, L.; Pursimo, T.; *Raiteri, C. M.; Rekola, R.; Savolainen, T.; Sillanpää, A.; *Smale, A.; *Sobrito, G.; Takalo, L. O.; *Thompson, D. J.; *Tosti, G.; *Wagner, S. J.; *Wilson, J. W. 2001: "Day-Scale Variability of 3C 279 and Searches for Correlations in Gamma-Ray, X-Ray, and Optical Bands" - Astrophysical Journal 558: 583-589 [C]

*Hartman R. C., *Böttcher M. , *Aldering G., *Aller H., *Aller M., *Backman D. E., *Balonek T. J., *Bertsch D. L., *Bloom S. D., *Bock H., *Boltwood P., *Carini M. T., *Collmar W., *De Francesco G., *Ferrara E. C., *Freudling W., *Gear W. K., *Hall P. B., *Heidt J., *Hughes P., *Hunter S. D., *Jogee S., *Johnson W. N., *Kanbach G., Katajainen S., *Kidger M., *Kii T., Koskimies M., *Kraus A., *Kubo H., *Kurtanidze O., *Lanteri L., *Lawson A., *Lin Y. C., *Lisenfeld U., *Madejski G., *Makino F., *Maraschi L., *Marscher A. P., *McFarland J. P., *McHardy I., *Miller H. R., *Nikolashvili M., Nilsson K., *Noble J. C., *Nucciarelli G., *Ostorero L., *Pian E., Pursimo T., *Raiteri C. M., *Reich W., Rekola R., *Richter G. M., *Robson E. I., *Sadun A., Savolainen T., Sillanpää A., *Smale A., *Sobrito G., *Sreekumar P., *Stevens J. A., Takalo L. O., *Tavecchio F., *Teräsranta H., *Thompson D. J., *Tornikoski M., *Tosti G., *Ungerechts H., *Urry C. M., Valtaoja E., *Villata M., *Wagner S. J., *Wehrle A. E., *Wilson J. W. 2001: Multiepoch Multiwavelength Spectra and Models for Blazar 3C 279 - Astrophysical Journal 553: 683 - 694 [C]

*Hartman, R.C., *Villata, M., *Raiteri, C.M., *Sobrito, G., *Ostorero, L., *De Francesco, G., *Tosti, G., *Kurtanidze, O., *Nikolashvili, M., Takalo, L.O., Sillanpää, A., Koskimies, M., *Heidt, J., *Balonek, T.J., *Miller, H.R., *Ferrara, E.C., *McFarland, J.P., *Wilson, J.W. 2001: A possble optical/gamma-ray short-term correlation in 3C 279 - in "meeting" eds. B. Petterson, R.W. Pogge and R.S. Polidan, PASP (Publications of the Astronomical Society of the Pacific) conf. series 224, 249 [D]

Heinämaki,P. 2001: Symmetry of black hole ejections in mergers of galaxies - Astronomy & Astrophysics 371, 795-805 [C]

*Homer L., *Charles P.A., Hakala P., Muhli P., *Shih I-C., *Smale A.P., *Ramsay G. 2001: ``On the multi-periodicities in the X-ray dipper XB 1916-053'' - Monthly Notices of Royal Astronomical Society 322, 827-842 [C]

Hänninen, J., Flynn, C. 2001: 'N-Body Simulations of the Stellar Velocity Dispersion' - Stellar Dynamics: from classic to modern (eds. L. P. Ossipkov and I. I. Nikiforov), St. Petersburg State University, St. Petersburg, 143-146 [D]

Hänninen, J.,Flynn, C. 2001: 'Direct N-body simulations of the stellar velocity dispersion' - Dynamics of star clusters and the Milky Way (eds. Deiters et al.), A.S.P. (Astronomical Society of the Pacific) Conference Serie 228, 443-445 [D]

*Jerjen, H., Rekola, R., Takalo, L., *Coleman, M., Valtonen, M. 2001: Surface brigthness fluctuation distances for nearby dwarf elliptical galaxies - Astronomy & Astrophysics 380, 90-101 [C]

Karttunen, H. 2001: Datan käsittely, 2. korjattu painos, CSC-Tieteellinen laskenta Oy. [h]

Karttunen, H. 2001: Johdatus taivaanmekaniikkaan, Ursa, 160 sivua. [h]

Karttunen, H., *Kröger, P., *Poutanen, M. 2001: Tähtitieteen harjoitustehtäviä, 2. korjattu painos, Ursa. [h]

Katajainen, S., *Scaltriti, F., Piirola, V., Lehto, H.J., *Anderlucci, E. 2001: UBVRI-polarimetry of the AM Herculis star RX J0203.8+2959 - Astronomy and Astrophysics 372 945-951, [C]

Katajainen S. 2001: Kun tähti syö kumppaniaan, mitä jää jäljelle? - Tähdet ja Avaruus 7/2001, p. 20 - 23 [i]

*Korhonen, H., *Berdyugina, S.V., *Tuominen, I., *Andersen, M.I., *Piironen, J., *Strassmeier, K.G., *Grankin, K.N., *Kaasalainen, S., Karttunen, H., *Mel'nikov, S.Yu., *Shevchenko, V.S., *Trisoglio, M., *Virtanen, J. 2001: Study of FK Comae Berenices III. Photometry for the years 1993-2001 - Astronomy and Astrophysics 374, 1049-1055. [C]

Kotilainen,J.K., Reunanen,J., *Laine,S., *Ryder,S.D. 2001: Near-infrared line imaging of the starburst galaxies NGC 520, NGC 1614 and NGC 7714 - Astronomy & Astrophysics 366, 439-450 [C]

*Martín, E.L., *Zapatero Osorio, M.R., Lehto, H.J., 2001: Photometric Variability in the Ultracool Dwarf BRI 0021-0214: Possible Evidence for Dust Clouds - Astrophysical Journal 557, 822-830 [C]

Mikkola,S., *Palmer,P. 2001: Simple derivation of symplectic integrators with first order correctors - Celestial Mechanics and Dynamical Astronomy 77: 305-317. [C]

Mikkola, S., *Palmer, P.L., *Hashida, Y., 2001: A Symplectic Orbital Estimator for Direct Tracting on Satellites - Journal of Astronautical Sciences 48: No 1, 109-125. [C]

Muhli P., Hakala P.J., *Huovelin J.,*Vilhu, O. 2001: Monitoring the long-term variability of X-ray binaries with SMART-1 - in Proceedings of X-ray Astronomy 2000, Sep 2000, Mondello (Palermo), Sicily, Italy, eds. Giacconi R., Serio S. & Stella L., ASP Conference Series Vol. 234 (on CD-ROM enclosed in the volume) [D]

Mylläri, A., Flynn, C., *Orlov, V. 2001: Stellar Moving Groups in HIPPARCOS - In Dynamics of Star Cluster and the Milky Way, International Spring Meeting of Astronomische Gesellschaft "Star Two Thousand", Heidelberg, Germany 20-24 March 2000, Edited by S. Deiters, B. Fuchs, A. Just, R. Spurzem & R. Wielen, ASP (Astronomical Society of the Pacific) Conference Series 228, 329 - 334 [D]

Mylläri, A.A., *Orlov, V.V., *Petrova, A.V. 2001: Distripution of Moving Groups by GMC - In Stellar Dynamics: from Classic to Modern, St. Petersburg, Russia, August 21-27, 2000, Edited by L.P. Ossipkov & I.I. Nikiforov, St. Petersburg University press, 180 - 182 [D]

Mylläri, A.A., *Orlov, V.V:, *Pitiev, N.P. 2001: Stochastization of Orbits in 2D Potentials - In Stellar Dynamics: from Classic to Modern, St. Petersburg, Russia, August 21-27, 2000, Edited by L.P. Ossipkov & I.I. Nikiforov, St. Petersburg University Press, 205 - 208 [D]

Mylläri, A., Flynn, C., *Ossipkov, L.P. 2001: Extrapolating Stellar Kinematics to Zero Heliocentric Distance - In Stellar Dynamics: from Classic to Modern, St. Petersburg, Russia, August 21-27, 2000, Edited by L.P. Ossipkov & I.I. Nikiforov, St. Petersburg University Press, 51-53 [D]

Nurmi,P. 2001: Long-term evolution of Oort Cloud comets: methods and comparisons - Monthly Notices of Royal Astronomical Society 323, 911-922 [C]

Nurmi, P., Valtonen, M. J., Zheng, J. Q. 2001: Periodic variation of Oort Cloud flux and cometary impacts on the Earth and Jupiter, Monthly Notices of Royal Astronomical Society 327, 1367-1376 [C]

Nurmi, P. 2001: Long-Term Simulations of the Dynamical Evolution of Comets and Meteoroids, 2001, Annales Universitatis Turkuensis, A1 274, 128 p. [a]

*Ossipkov, L.P. Mylläri, A., Flynn, C. 2001: A Determination of the Solar Azimutal Velocity - In Stellar Dynamics: from Classic to Modern, St. Petersburg, Russia, August 21-27, 2000, Edited by L.P. Ossipkov & I.I. Nikiforov, St. Petersburg University Press, 48-50 [D]

*Ossipkov, L.P., Mylläri, A.A., *Kutuzov, S.A. 2001: The morphology of globular cluster galactic orbits - Vestn. S.-Petersburg univ. Ser 1, Vyp. 3, 85-92 [C]

*Parmar, A. N., *Sidoli, L., *Oosterbroek, T., *Charles, P. A., *Dubus, G., *Guainazzi, M., Hakala, P.; *Pietsch, W.; *Trinchieri, G. 2001: "BeppoSAX spectroscopy of the luminous X-ray sources in M 33" -Astronomy & Astrophysics 368, 420-430 [C]

*Piironen, J., *Muinonen, K., *Keränen, S., Karttunen, H., *Peltoniemi, J. 2001 (2000): Backscattering of light by snow, in *Verstraete, M.M., *Menenti, M., Peltoniemi, J. (eds.) Observing land *from space: science, customers and technology, Kluwer, 219-228. [D]

Pohjolainen S., *Maia D., *Pick M., *Vilmer N., *Khan J.I., *Otruba W., *Warmuth A., *Benz A., *Alissandrakis C., and *Thompson B., 2001: On-the-disk development of the halo coronal mass ejection on May 2, 1998. - Astrophysical Journal 556: 421-431 [C]

*Potter, S., *Romero-Colmenero, E., *Buckley, D.A.H., *Cropper, M., Hakala, P. 2001: "Stokes Imaging of the Accretion Region in Magnetic Cataclysmic Variables" - proceedings of Astrotomography, Indirect Imaging Methods in Observational Astronomy, Edited by H.M.J. Boffin, D. Steeghs and J. Cuypers, Lecture Notes in Physics 573, 244 [D]

*Raiteri, C.M., *Villata, M., *Aller, H.D., *Aller, M.F., *Heidt, J., *Kurtanidze, O., *Lanteri, L., *Maesano, M., *Massaro, E., *Montagni, F., *Nesci, R., Nilsson, K., *Nikolashvili, M., *Nurmi, P., *Ostorero, L., *Pursimo, T., Rekola, R., Sillanpää, A., Takalo, L.O., *Teräsranta, H., *Tosti, G., *Balonek, T., *Feldt, M., *Heines, A., *Heisler, C., *Hu, J., *Kidger, M., *Mattox, J.R., *Pati, A., *Robb, R., *Sadun, A.C., *Shastri, P., *Wagner, S.J., Wei, J. 2001: Optical and radio variability of the BL Lac object AO 0235+164: a possible 5-6 year periodicity - Astronomy & Astrophysics 377, 396-418 [C]

Riehokainen, A., *Urpo, S., Valtaoja, E., *Makarov, V.I., *Makarova, V.V., *Tlatov, A.G. 2001: Millimeter-radio, SOHO/EIT 171 A features and the polar faculae in the polar zones of the Sun. - Astronomy and Astrophysics 366, 676-685. [C]

*Rodríguez-Gil, P., *Casares, J., *Martínez-Pais, I.G., Hakala, P., *Steeghs, D. 2001: "Evidence of Magnetic Accretion in an SW Sextantis Star: Discovery of Variable Circular Polarization in LS Pegasi" - Astrophysical Journal 548, L49-52 [C]

Sillanpää, A., Takalo, L.O. 2001: Ground based support for Gamma-ray observtions of blazars - "High energy Gamma-ray Astronomy", AIP Conf. Series, eds. F.A. Ahoronia and H.J. Völk 558, 736-737 [D]

Sillanpää, A., Takalo, L.O. 2001: the WEBT Collaboration, Optical Monitoring of the Blazar Mkn421 during the TeV Outburts, 2001, ICRC2001 meeting CD-levyke [D]

Takalo, L.O., Sillanpää, A. 2001: Multifrequency monitoring of 3C 66A - in "High energy Gamma-ray Astronomy", AIP Conf. Series, eds. F.A. Ahoronian and H.J. Völk 558, 725-727 [D]

*Tanikawa, K., Mikkola, S. 2001: One dimensional three-body problem via symbolic dynamics - Chaos 10: 649-657. [C]

Teerikorpi, P. 2001: Dark haloes in Karachentsev's sample of binary galaxies - Astronomy and Astrophysics 371, 470 - 475 [C]

Teerikorpi, P. 2001: Evidence for the class of the most luminous quasars. III. Linear sizes and the core-size relations of double radio sources - Astronomy and Astrophysics 375, 752 - 760 [C]

*Teräsranta, H., *Urpo, S., Wiren, S. & Valtonen,M. 2001: Search for new flat-spectrum radio sources - Astronomy & Astrophysics 368, 431 - 439 [C]

*Tommasi, L., *Palazzi, E., *Pian, E., Piirola, V., Sillanpää, A., *Takalo, L.O., Poretti, E., *Scaltriti, F., *Treves, A. 2001: *Multiband optical polarization monitoring of BL Lac objects with the *Nordic Optical Telescope - Astronomy & Astrohysics 376, 51-58 [C]

*Tornikoski, M., *Jussila, I., *Johansson, P., Lainela, M., Valtaoja, E. 2001: Radio Spectra and Variability of Gigahertz-Peaked Spectrum Radio Sources and Candidates - Astrophysical Journal 121, 1306 - 1318 [C]

*Uslenghi, M., *Tommasi, L., *Treves, A., Piirola, V., *Reig, P. 2001: Discovery of circular polarization in the Intermediate Polar IWGA J1958.2+3232 - Astronomy and Astrophysics 372, L1-L4 [C]

Valtonen, M, Mikkola, S. 2001: Three-body problem - in Paul Murdin ( editor), Encyclopedia of Astronomy and Astrophysics. Institute of Physics Publishing (Bristol and Philadelphia) and Nature Publishing Group (London, New York and Tokyo), MacMillan Publishers Ltd (2001). [D] *Vilhu O., Muhli P., *Mewe R., Hakala P. 2001: The coronal FeXXI ( 1354.08 line in AB Doradus - Astronomy and Astrophysics 375, 492-497 [C]

Wiik, K.; Valtaoja, E.; *Leppänen, K. 2001: VLBI monitoring of a sample of 15 AGN at 22 GHz. I. Data - Astronomy and Astrophysics 380:72-80 [C]

Wiik, K.; Valtaoja, E. 2001: The geometry of the universe from high resolution VLBI data of AGN shocks - Astronomy and Astrophysics 366: 1061-1064 [C]

Zheng, J.Q., Flynn, C., *Gould, A., *Bachall, J.N., *Salim, S. 2001: M Dwarfs from Hubble Space Telescope Star Counts. IV. - The Astrophysical Journal Vol. 555, Issue 1, 393 - 404 [C]

*Zurita, C., *Casares, J., *Rodriguez-Gil, P., *Shahbaz, T., *Charles, P.A., *Sanchez-Fernandez, C., *Castro-Tirado, A.J., *Abbot, T., Hakala, P. 2001: "Minioutbursts in XTE J1859+226", Astr. Phys. Space Sci. Supplement serie 276, 55-56 [D]

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