AAS 198th Meeting, June 2001
Session 34. Interacting Galaxies: A Multi-wavelength Look at their Role in Galactic and Cosmic Evolution
Topical Session Oral, Tuesday, June 5, 2001, 8:30am-12:30pm, 2:00-5:30pm, C106

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[34.11] HST NICMOS Observations of Infrared Luminous Galaxy Mergers

A.S. Evans (SUNY at Stony Brook)

HST NICMOS observations of a sample of 24 luminous (LIGs: LIR [8-1000 um] = 1011.0-11.99 Lsun) and ultraluminous (ULIGs: LIR > 1012.0 Lsun) infrared galaxies are presented. These observations provide high resolution (0.1-02") HST imaging of the imbedded 1.1 - 2.2 um nuclear regions of these mergers, thus yielding detailed information about the morphology, color, and distribution of imbedded nuclear structures. These data are discussed in the context of recent mid-infrared imaging and radio/millimeter-wave interferometry of a subset of these galaxies, which indicate that a significant fraction of ULIGs may generate most of their energy within a region 50-200 pc across.

The author(s) of this abstract have provided an email address for comments about the abstract: aevans@mail.astro.sunysb.edu

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