Near-infrared mapping of spiral galaxies. I - The SB galaxy NGC 2841 - Annular structure in the young disc component

Bibcode
1985A&A...146..297P
Prieto, M.; Sanchez-Magro, C.; Battaner, E.; Beckman, J.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 146, no. 2, May 1985, p. 297-302. Research supported by the British Council and Ministry of Education and Science of Spain.

Advertised on:
5
1985
Number of authors
4
IAC number of authors
3
Citations
14
Refereed citations
13
Description
NGC 2841 has been mapped in the J and K near-infrared bands out to some 10 kpc from its center. Maps and radial profiles in micron(J), micron(K) and J-K are presented, and profiles in B-J and B-K derived. The bulge and disk are very well distinguished, but there is also an indication of a bluer ring in the disk between 2 and 7 kpc galactrocentric distance. This is accentuated when an improved technique for calibrating intragalactic dust reddening, based on H I and H surface densities is applied. This annular region of enhanced star formation rate coincides with the presence of an enhanced H2 distribution, derived from CO measurements by Young and Scoville (1982).
Type
Refereed
Disk galaxies
Infrared astronomy
Spiral galaxies
Interstellar extinction
Stellar evolution

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