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- University of TurkuFI32 papers
- University of MichiganUS20 papers
- Max Planck Institute for Radio AstronomyDE17 papers
- National Institute for AstrophysicsIT16 papers
- Aalto UniversityFI12 papers
- Instituto de Radioastronomía MilimétricaES12 papers
- St Petersburg UniversityRU12 papers
- Boston UniversityUS11 papers
- Instituto de Astrofísica de AndalucíaES11 papers
- Osservatorio Astrofisico di TorinoIT11 papers
- Evgeni Kharadze Georgian National Astrophysical ObservatoryGE10 papers
- Vaisala (Finland)FI10 papers
7 papers · 1 filter
Host galaxy subtraction of TeV candidate BL Lacertae objects
K. Nilsson, M. Pasanen, L. O. Takalo +4
We have derived R-band host galaxy fluxes of 20 TeV candidate BL Lacertae objects as a function of aperture radius and FWHM. The results are given as correction tables, that list t…
The WEBT Campaign on the Blazar 3C279 in 2006
M. Boettcher
The quasar 3C279 was the target of an extensive multiwavelength monitoring campaign from January through April 2006, including an optical-IR-radio monitoring campaign by the Whole…
Magnetic Field Structure in the Parsec Scale Jet of 3C273 from Multifrequency VLBA Observations
T. Savolainen, K. Wiik, E. Valtaoja +1
We present first results from a multifrequency VLBA observations of 3C273 in 2003. The source was observed simultaneously at 5.0, 8.4, 15.3, 22.2, 43.2 and 86.2 GHz, and from this…
Synchrotron flaring behaviour of CygnusX-3 during the February-March 1994 and September 2001 outbursts
E. J. Lindfors, M. Türler, D. C. Hannikainen +4
Aims: In this paper we study whether the shock-in-jet model, widely used to explain the outbursting behaviour of quasars, can be used to explain the radio flaring behaviour of the…
Statistical analyses of long-term variability of AGN at high radio frequencies
T. Hovatta, M. Tornikoski, M. Lainela +5
We present a study of variability time scales in a large sample of Active Galactic Nuclei at several frequencies between 4.8 and 230 GHz. We investigate the differences of various…
INTEGRAL and Multiwavelength Observations of the Blazar Mrk 421 during an Active Phase
G. G. Lichti, E. Bottacini, P. Charlot +9
A ToO observation of the TeV-emitting blazar Mrk 421 with INTEGRAL was triggered in June 2006 by an increase of the RXTE count rate to more than 30 mCrab. The source was then obser…