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We introduce and describe main results of the AMIGA project. AMIGA involves a panchromatic characterization for many of the most isolated galaxies in the local universe. Many of these galaxies have avoided major interaction events for all, or most, of their lives. Our studies show these galaxies to be the most IR/radio/optically ˵quiet″ sample that is known. AMIGA data are publicly released under a VO interface at http://amiga.iaa.es/ and are also accessible by standard VO tools, as, e.g. TOPCAT. [ABSTRACT FROM AUTHOR]

Scanning Fabry-Perot interferometers MOS/SIS (3.6m CFHT)+PUMA (2.1m OAN-SPM, México) and the long-slit spectrograph ALFOSC (2.5m NOT, La Palma) were used to measure the kinematics of gas and stars in Seyfert's Sextet (HCG79). We interpret it as a highly evolved group that formed from sequential acquistion of mostly late-type galaxies that are now slowly coalescing and undergoing strong secular evolution. We find evidence for possible feedback as revealed by accretion and minor merger events in two of the most evolved members. [ABSTRACT FROM AUTHOR]

Although it is widely accepted that galaxy interactions stimulate secular evolutionary effects (e.g. enhanced star formation), the amplitude of this effect and the processes for accomplishing them are not well quantified. The goal of the project AMIGA (Analysis of the Interstellar Medium of Isolated Galaxies) is to provide a sizable reference sample (n=1050) of the most isolated galaxies as a basis for the study of the influence of the environment on galaxy properties. Here, we present the far-infrared (FIR) properties of 1030 galaxies of the sample for which IRAS data are available. We improved the detection rate and accuracy of the IRAS data with respect to the Point Source and Faint Source Catalog by redoing the data reduction with the IPAC utility ADDSCAN/SCANPI. Comparing the FIR to the blue luminosities, we find a slightly non-linear relation. Furthermore, we find that interacting galaxies tend to have an enhanced FIR emission. [ABSTRACT FROM AUTHOR]

The aim of the AMIGA project (Analysis of the Interstellar Medium in Isolated GAlaxies) is building a reference sample of isolated galaxies to study the role of the environment in galactic evolution. AMIGA began in 2003 and nowadays involves more than 30 participants from 15 international institutions. Radio continuum emission in isolated spiral galaxies is coming from disk-dominated emission in spiral galaxies, in contrast to the results found in high-density environments where nuclear activity is more frequent. The radio continuum power is lower on average in our sample than in interacting galaxies or galaxies without an environment selection criterion. This confirms the relevance of our sample as a baseline to study the effects of the environment. Finally, we have studied the nuclear activity in isolated galaxies. We used different selection methods of isolated galaxies with active nucleus: (1) the far infrared colors give us a fraction of 7–20% of AGN candidates and (2) the rate of radio excess galaxies in the correlation of far infrared with radio continuum is less than 1%, which is the lowest rate found comparing with samples in other environments. This confirms the role of the environment as fundamental in the triggering of the radio nuclear activity. [ABSTRACT FROM AUTHOR]