L. Maraschi
INAF
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Featured researches published by L. Maraschi.
Astronomy and Astrophysics | 2015
L. Foschini; M. Berton; A. Caccianiga; S. Ciroi; V. Cracco; Bradley M. Peterson; E. Angelakis; V. Braito; L. Fuhrmann; Luigi C. Gallo; Dirk Grupe; E. Järvelä; S. Kaufmann; Stefanie Komossa; Y. Y. Kovalev; A. Lähteenmäki; M. M. Lisakov; M. L. Lister; S. Mathur; J. L. Richards; Patrizia Romano; A. Sievers; G. Tagliaferri; J. Tammi; O. Tibolla; M. Tornikoski; S. Vercellone; G. La Mura; L. Maraschi; Piero Rafanelli
We have conducted a multiwavelength survey of 42 radio loud narrow-1ine Seyfert 1 galaxies (RLNLS1s), selected by searching among all the known sources of this type and omitting those with steep radio spectra. We analyse data from radio frequencies to X-rays, and supplement these with information available from online catalogs and the literature in order to cover the full electromagnetic spectrum. This is the largest known multiwavelength survey for this type of source. We detected 90% of the sources in X-rays and found 17% at gamma rays. Extreme variability at high energies was also found, down to timescales as short as hours. In some sources, dramatic spectral and flux changes suggest interplay between a relativistic jet and the accretion disk. The estimated masses of the central black holes are in the range
Astronomy and Astrophysics | 2012
L. Foschini; E. Angelakis; L. Fuhrmann; Gabriele Ghisellini; T. Hovatta; A. Lähteenmäki; M. L. Lister; V. Braito; Luigi C. Gallo; T. S. Hamilton; M. Kino; Stefanie Komossa; A. B. Pushkarev; D. J. Thompson; O. Tibolla; A. Tramacere; Alberto Carraminana; L. Carrasco; A. Falcone; M. Giroletti; Dirk Grupe; Y. Y. Kovalev; T. P. Krichbaum; W. Max-Moerbeck; I. Nestoras; T. J. Pearson; A. Porras; A. C. S. Readhead; E. Recillas; J. L. Richards
sim 10^{6-8}M_{odot}
