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The Astrophysical Journal
Article . 1988 . Peer-reviewed
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Infrared array imaging and spectrophotometry of the nuclear region of the 'hot-spot' galaxy NGC 2903

Authors: D. A. Simons; D. L. Depoy; E. E. Becklin; R. W. Capps; K.-W. Hodapp; D. N. B. Hall;

Infrared array imaging and spectrophotometry of the nuclear region of the 'hot-spot' galaxy NGC 2903

Abstract

Previous studies of the hot-spot galaxy NGC 2903 at a variety of wavelengths have shown that considerable star formation is occurring within the complex hot-spot structures in this galaxy's nuclear region. A K-band (2.2 microns) image of the galaxy's nuclear region has been obtained with an infrared CCD and compared to V-band (0.55 micron) and 1-micron images of the same region. The data show that changes in hot spot morphology in the V band are due primarily to variations in extinction, though variations in stellar populations and densities are also probably important. The K-band/V-band image ratio has been used to map the variation of color across the inner about 20 arcsec of the galaxy. The structures revealed in this image ratio suggest that a dust lane extends through the nucleus. Spectrophotometry of the Br-alpha hydrogen recombination line emission from two positions within the imaged region has also been acquired. The measured line strengths show that ionized gas and active star formation exist well outside of the hot spots. 36 references.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
Average
Average
gold