BV surface photometry of southern galaxies. I - NGC 4507

Details BV surface photometry of southern galaxies. I - NGC 4507 BV surface photometry of southern galaxies. I - NGC 4507

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...304..305s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 304, May 1, 1986, p. 305-311. CNPq-FINEP-supported research.

Astronomy and Astrophysics

Astrophysics

3

Astronomical Photometry, Barred Galaxies, Galactic Structure, Southern Sky, Astronomical Photography, Color, Disk Galaxies, Galactic Nuclei, Interstellar Extinction, Luminosity

Scientific paper

From B and V photographic surface photometry photometric parameters, mean-luminosity profiles, and B-V color indices are obtained for the barred spiral galaxy NGC 4507. The decomposition of the mean-luminosity B profile shows the existence of an r exp 1/4 bulge, an exponential disk, a bar, and possibly a lens. The dimensions and colors of these structures are derived. The mean B-V distribution shows a color gradient of 0.4 mag between the nucleus and arms region. A reddening of E(B-V) = 0.2-0.3 of the southern region can be detected when its B-V values are compared with those of the northern region.

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