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Star Formation Properties and Dynamics of Luminous Infrared Galaxies with Adaptive Optics
Stockholm University, Faculty of Science, Department of Astronomy.
2010 (English)In: Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies : proceedings of a conference held 19-22 July 2009 at East Tennessee State University, Johnson City, Tennessee, USA. / [ed] Beverly Smith, Nate Bastian, Sarah J. U. Higdon, and James L. Higdon, San Francisco: Astronomical Society of the Pacific , 2010, Vol. 423, 323- p.Conference paper (Other academic)
Abstract [en]

Near infrared adaptive optics observations are crucial to be able to interpret kinematic and dynamical data and study star formation properties within the often extremely dusty interacting luminous IR galaxies (LIRGs). NIR AO data are also needed to find supernovae in their bright and dusty central regions and to fully characterize the young stellar clusters found in these kinds of systems. We have used AO in the K-band to survey a sample of LIRGs at 0.1 arcsec (30 to 100 pc) resolution. The data are merged with SALT and AAT spectroscopic follow-up and HST and Spitzer archival imaging. The first AO detected SNe are reported as well as details of the first studied LIRGs. One LIRG showed an unexpected third component in the interaction, which moreover turned out to host the most active star formation. Another target showed evidence in the NIR of a very rare case of leading spiral arms, rotating in the same direction as the arms open.

Place, publisher, year, edition, pages
San Francisco: Astronomical Society of the Pacific , 2010. Vol. 423, 323- p.
, Astronomical Society of the Pacific Conference Series, 423
National Category
Astronomy, Astrophysics and Cosmology
Research subject
URN: urn:nbn:se:su:diva-53447OAI: diva2:391231
Available from: 2011-01-24 Created: 2011-01-23 Last updated: 2011-02-04Bibliographically approved

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Mattila, Seppo
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Department of Astronomy
Astronomy, Astrophysics and Cosmology

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