AMIGA : Analysis of the interstellar Medium of Isolated GAlaxies

The evolutionary history of galaxies is thought to be strongly conditioned by the environment, but the observational evidence is sometimes weak or unc

The evolutionary history of galaxies is thought to be strongly conditioned by the environment, but the observational evidence is sometimes weak or unclear. Part of the difficulty lies in the confusion between the roles of one-on-one interactions vs. more general correlations with average galaxy environmental density, and reflect a lack of suitable control samples to which interacting sample properties can be compared. A definition of "isolated galaxy" is needed before one can properly assess the history and properties of non-isolated ones.In order to generate a "zero-point" sample which will serve as a template in the study of star formation and galaxy evolution in denser environments we have started the international collaboration: AMIGA project: Analysis of the interstellar Medium of Isolated GAlaxies "AMIGA3: Nature, nurture and VO-tools" has been awarded with DGI Grant AYA2008-06181-C02-01 We are producing and analysing a multiwavelength database for a refinement of the pioneering Catalog of Isolated Galaxies (CIG: Karachentseva 1973; n = 1050 galaxies) including optical, IR and radio line and continuum measures in order to characterise all phases of the ISM. The result can be a sample large enough to characterize the low density tail of the two-point correlation function, and to tell us: a) if truly isolated galaxies exist; b) in what numbers; and c) the environmental level where the onset of interaction-induced activity can first be detected.
 

LAST INFO
DSS-63 Archive opened !!
The system has been jointly developed by the AMIGA Group and CAB (INTA- CSIC).

Fourier Photometric Analysis of Isolated Galaxies in the context of AMIGA project. Durbala , R. Buta, J. W. Sulentic, and L. Verdes-Montenegro
Mon. Not. R. Astron. Soc. May 2009

Dpt. Astronomía Extragaláctica
Instituto Astrofísica Andalucía
Glorieta de la Astronomía s/n
18008 Granada
Spain

Analysis of the interstellar Medium of Isolated GAlaxies

The evolutionary history of galaxies is thought to be strongly conditioned by the environment, but the observational evidence is sometimes weak or unclear. Part of the difficulty lies in the confusion between the roles of one-on-one interactions vs. more general correlations with average galaxy environmental density, and reflect a lack of suitable control samples to which interacting sample properties can be compared. A definition of  "isolated galaxy" is needed before one can properly assess the history and properties of non-isolated ones.

In order to generate a "zero-point" sample which will serve as a template in the study of star formation and galaxy evolution in denser environments we have started the international collaboration:
 
AMIGA project: Analysis of the interstellar Medium of Isolated GAlaxies

AMIGA3: NATURE, NURTURE & VO-TOOLS
"AMIGA3: Nature, nurture and VO-tools" has been awarded with DGI Grant AYA2008-06181-C02-01

We are producing and analysing a multiwavelength database for a refinement of the pioneering Catalog of Isolated Galaxies (CIG: Karachentseva 1973; n = 1050 galaxies) including optical, IR and radio line and continuum measures in order to characterise all phases of the ISM. The result can be a sample large enough to characterize the low density tail of the two-point correlation function, and to tell us: a) if truly isolated galaxies exist; b) in what numbers; and c) the environmental level where the onset of interaction-induced activity can first be detected.