T
T. Pursimo
Researcher at University of Turku
Publications - 116
Citations - 5821
T. Pursimo is an academic researcher from University of Turku. The author has contributed to research in topics: Blazar & BL Lac object. The author has an hindex of 46, co-authored 106 publications receiving 5536 citations. Previous affiliations of T. Pursimo include University of Arizona.
Papers
More filters
Journal ArticleDOI
A massive binary black-hole system in OJ 287 and a test of general relativity
Mauri Valtonen,Harry Lehto,Kari Nilsson,Jochen Heidt,L. O. Takalo,A. Sillanpää,Carolin Villforth,M. R. Kidger,G. Poyner,T. Pursimo,Staszek Zola,Staszek Zola,Jin Wu,Xingjiang Zhou,Kozo Sadakane,Marek Drozdz,Dorota Kozieł,Dragomir Marchev,Waldemar Ogloza,C. Porowski,Michal Siwak,G. Stachowski,M. Winiarski,V.-P. Hentunen,M. Nissinen,Alexios Liakos,S.S. Doğru +26 more
TL;DR: The observations confirm the binary nature of the system and also provide evidence for the loss of orbital energy in agreement (within 10 per cent) with the emission of gravitational waves from the system.
Journal ArticleDOI
A Mean Redshift of 2.8 for Swift gamma - ray bursts
Pall Jakobsson,Andrew J. Levan,Andrew J. Levan,Jpu Fynbo,Robert S. Priddey,Jens Hjorth,Nial R. Tanvir,Darach Watson,B. L. Jensen,Jesper Sollerman,Priyamvada Natarajan,Javier Gorosabel,Jmc Ceron,Kristian Pedersen,T. Pursimo,Anna Arnadottir,A. J. Castro-Tirado,C. J. Davis,Hans J. Deeg,D. A. Fiuza,S. Mykolaitis,S. G. Sousa +21 more
TL;DR: In this paper, the authors present a carefully selected sample of Swift GRBs, intended to estimate in an unbiased way the GRB mean redshift (z(mean)), constraints on the fraction of high-redshift bursts and an upper limit on the amount of heavily obscured afterglows.
Journal ArticleDOI
A mean redshift of 2.8 for Swift gamma-ray bursts
Pall Jakobsson,Andrew J. Levan,Johan P. U. Fynbo,Robert S. Priddey,Jens Hjorth,Nial R. Tanvir,Darach Watson,B. L. Jensen,Jesper Sollerman,Priyamvada Natarajan,J. Gorosabel,J. M. Castro Cerón,K. Pedersen,T. Pursimo,Anna Arnadottir,A. J. Castro-Tirado,C. J. Davis,Hans J. Deeg,D. A. Fiuza,S. Mykolaitis,S. G. Sousa +20 more
TL;DR: In this article, the authors present a carefully selected sample of Swift GRBs, intended to estimate in an unbiased way the GRB mean redshift (z_mean), constraints on the fraction of high-redshift bursts and an upper limit on heavily obscured afterglows.
Journal ArticleDOI
The unprecedented optical outburst of the quasar 3C 454.3 - The WEBT campaign of 2004–2005
M. Villata,C. M. Raiteri,Thomas J. Balonek,Margo F. Aller,Svetlana G. Jorstad,Omar M. Kurtanidze,Fabrizio Nicastro,Fabrizio Nicastro,Fabrizio Nicastro,Kari Nilsson,Hugh D. Aller,A. Arai,A. A. Arkharov,U. Bach,Erika Benítez,Andrei Berdyugin,Carla Buemi,Markus Böttcher,D. Carosati,Ricard Casas,A. Caulet,Wen Ping Chen,P.-S. Chiang,Yi Chou,Stefano Ciprini,J. M. Coloma,G. Di Rico,C. Díaz,N. V. Efimova,N. V. Efimova,C. Forsyth,Antonio Frasca,Lars Fuhrmann,Lars Fuhrmann,Bryce Gadway,S. Gupta,Vladimir A. Hagen-Thorn,Vladimir A. Hagen-Thorn,Jonathan E. Harvey,Jochen Heidt,H. Hernandez-Toledo,Filip Hroch,Chin-Ping Hu,René Hudec,Mansur Ibrahimov,Akira Imada,M. Kamata,Taichi Kato,M. Katsuura,Tatiana S. Konstantinova,E. N. Kopatskaya,D. Kotaka,Yuri Y. Kovalev,Yuri Y. Kovalev,Yu. A. Kovalev,Thomas P. Krichbaum,K. Kubota,M. Kurosaki,L. Lanteri,Valeri M. Larionov,Valeri M. Larionov,L. V. Larionova,Eija Laurikainen,C.-U. Lee,Paolo Leto,Anne Lähteenmäki,Omar López-Cruz,E. Marilli,Alan P. Marscher,I. M. McHardy,Soumen Mondal,B. Mullan,N. Napoleone,Maria G. Nikolashvili,J. M. Ohlert,S. Postnikov,T. Pursimo,M. Ragni,J. A. Ros,Kozo Sadakane,A. C. Sadun,Tuomas Savolainen,E. A. Sergeeva,Lorand A. Sigua,A. Sillanpää,L. Sixtova,Naoko Sumitomo,L. O. Takalo,Harri Teräsranta,Merja Tornikoski,Corrado Trigilio,G. Umana,A. E. Volvach,B. Voss,S. Wortel +94 more
TL;DR: In this article, a large multi-wavelength campaign was organized by the Whole Earth Blazar Telescope (WEBT) to follow the emission behavior of the radio quasar 3C 454.3.
Journal ArticleDOI
Optical and radio variability of the BL Lacertae object AO 0235+16: A possible 5-6 year periodicity
C. M. Raiteri,M. Villata,Hugh D. Aller,Margo F. Aller,Jochen Heidt,Omar M. Kurtanidze,L. Lanteri,M. Maesano,Enrico Massaro,F. Montagni,Roberto Nesci,K. Nilsson,Maria G. Nikolashvili,Pasi Nurmi,L. Ostorero,T. Pursimo,R. Rekola,A. Sillanpää,L. O. Takalo,H. Teräsranta,G. Tosti,Thomas J. Balonek,Markus Feldt,A. Heines,C. Heisler,J. Hu,M. R. Kidger,J. R. Mattox,E. J McGrath,A. K. Pati,Russell M. Robb,A. C. Sadun,Prajval Shastri,Stefan Wagner,J. Wei,X. Wu +35 more
TL;DR: In this paper, the authors investigated the existence of typical variability time scales and of possible correlations between the optical and radio emissions by means of visual inspection and Discrete Correlation Function (DCF) analysis.