Ultraviolet Imaging Telescope Observations of NGC 4151

Details Ultraviolet Imaging Telescope Observations of NGC 4151 Ultraviolet Imaging Telescope Observations of NGC 4151

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.9802h&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #98.02; Bulletin of the American Astronomical Society, Vol. 24, p.1274

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Scientific paper

The Seyfert 1 galaxy NGC 4151 was observed with the Ultraviolet Imaging Telescope (UIT) during the Astro-1 mission in December 1990. Images were obtained in one Near UV band (2500 Angstroms) and two Far UV (1500 Angstroms, 1620 Angstroms) bands. The active nucleus is prominent in all frames, while the NUV image and the deepest FUV image both show spiral arm structure. The FUV--NUV color index is very blue, indicating that massive stars are present in the outer arms. Surface photometry and multicolor analysis of the UIT and ground based data are presented in an analysis of the star formation history of the disk of the galaxy. Three other galaxies in the field of view (NGC 4156, UGC 7173, and UGC 7188) also have FUV-NUV color indices of --1.0 or bluer, possibly indicating enhanced star formation from tidal interactions.

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