High-resolution UKIRT observations of circumnuclear star formation in M100

Bibcode
1999MNRAS.302L...7R
DOI
10.1046/j.1365-8711.1999.02204.x
Ryder, S. D.; Knapen, J. H.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 302, Issue 1, pp. L7-L12.

Advertised on:
1
1999
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
2
IAC number of authors
0
Citations
32
Refereed citations
24
Description
We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. Combining the imaging and spectroscopic results, we conclude that the knots are the result of bursts of star formation within the last 15-25 Myr. We discuss the implications of these new results for our dynamical and evolutionary understanding of this galaxy.
Type
Refereed

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