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arXiv:astro-ph/0411443 (astro-ph)
[Submitted on 16 Nov 2004]

Title:The role of environment in triggering starburst galaxies: A sample of isolated galaxies

Authors:U. Lisenfeld, L. Verdes-Montenegro, D. Espada, E. Garcia, S. Leon, J. Sabater, J.W. Sulentic, S. Verley
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Abstract: The project AMIGA (Analysis of the interstellar Medium of Isolated GAlaxies) will provide a statistically significant sample of the most isolated galaxies in the northern sky. Such a control sample is necessary to assess the role of the environment in galaxy properties and evolution. The sample is based on the Catalogue of Isolated Galaxies (CIG, Karachentseva, 1973) and the database will include blue and near-infrared luminosities, far-infrared (FIR) emission, atomic gas (HI) emission, radio continuum, and, for a redshift limited subsample of about 200 galaxies, CO and H$\alpha$ emission. The data will be released and periodically updated at this http URL. Here, we present the project and its status, as well as a preliminary analysis of the relation between star formation activity and the environment. We found a trend that the galaxies with asymmetric HI spectrum also tend to show an enhanced star formation, traced by a high value of $L_{FIR}/M(HI)$, indicating that a perturbed gas kinematics and enhanced SF are related.
Comments: 6 pages, to appear in "The Evolution of Starbursts", ed. S. Huettemeister et al., AIP Proceedings
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0411443
  (or arXiv:astro-ph/0411443v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0411443
Related DOI: https://doi.org/10.1063/1.2034968

Submission history

From: Ute Lisenfeld [view email]
[v1] Tue, 16 Nov 2004 12:22:47 UTC (58 KB)
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