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- Centre National de la Recherche ScientifiqueFR493 papers
- National Institute for AstrophysicsIT482 papers
- Instituto de Astrofísica de CanariasES462 papers
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- University of PaduaIT407 papers
- Universidad de La LagunaES383 papers
- California Institute of TechnologyUS356 papers
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34 papers · 1 filter
The host galaxies of low luminosity quasars at high redshift
J. K. Kotilainen, R. Falomo, A. Treves +1
We present VLT/ISAAC near-infrared imaging of the host galaxies of 15 low luminosity quasars at 1 < z < 2. This work complements our studies to trace the cosmological evolution of…
A rapid and dramatic outburst in Blazar 3C 454.3 during May 2005 - Optical and infrared observations with REM and AIT
L. Fuhrmann, A. Cucchiara, N. Marchili +18
The flat-spectrum radio quasar 3C 454.3 is well known to be a highly active and variable source with outbursts occurring across the whole electromagnetic spectrum over the last dec…
Complex supergravity quintessence models confronted with Sn Ia data
K. Henttunen, T. Multamaki, I. Vilja
A class of supergravity inspired quintessence models is studied by comparing to cosmological data. The set of considered models includes several previously studied quintessential p…
Examining the Seyfert - Starburst Connection with Arcsecond Resolution Radio Continuum Observations
Seppo Laine, Jari K. Kotilainen, Juha Reunanen +2
We compare the arcsecond-scale circumnuclear radio continuum properties between five Seyfert and five starburst galaxies, concentrating on the search for any structures that could…
The Milky Way and the Tully-Fisher relation
L. Portinari, J. Holmberg, C. Flynn
We present an updated estimate of the surface density and surface brightness in B,V,I of the local Galactic disc, based on a model for the "Solar cylinder" calibrated to reproduce…
The Initial Mass Function in disc galaxies and in galaxy clusters: the chemo-photometric picture
L. Portinari
The observed brightness of the Tully-Fisher relation suggests a low stellar M/L ratio and a "bottom-light" IMF in disc galaxies, but the corresponding efficiency of chemical enrich…