ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We present spatially-resolved evolutionary synthesis modelling of the colliding galaxies NGC 3690 and IC 694, together known as Arp 299. This system is a possible merger and an excellent example of interaction-induced starbursts. Arp 299 is relatively nearby (V=3100 km s−1), emits most of its energy in the far-IR, and shows signs extended, thermal radiation sources. As such, it presents a good candidate for understanding the relationships between the dynamics of interacting galaxies and the starburst process. We use previously published photometric and spectroscopic data from the ultraviolet, optical, near- and far-infrared, millimeter, and radio spectral regions to constrain synthesis modelling of 1–2 kpc diameter areas at the three canonical regions of interest. The near-IR broadband decomposition method of Joy and Harvey (1987; also Telescoet al., 1985) is used to obtain the extinction to each of the three areas, which allows us to determine the intrinsic stellar spectrum. The synthesis modelling then determines the initial mass function and the star formation rate history of the interaction-induced stellar populations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00637318
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