Surface UBVR photometry of the barred galaxy NGC 151

Details Surface UBVR photometry of the barred galaxy NGC 151 Surface UBVR photometry of the barred galaxy NGC 151

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993azh....70....1e&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 70, no. 1, p. 1-9.

Astronomy and Astrophysics

Astronomy

6

Astronomical Photometry, Barred Galaxies, Brightness Distribution, Ubv Spectra, Star Formation, Stellar Orbits

Scientific paper

Results of surface photometry are presented for the inner region of the barred spiral galaxy NGC 151. The surface brightness of the inner galactic disk and that of the bar decrease exponentially with linear length-scales of 1.32 and 3.3, respectively. A color gradient Delta(U-B) and Delta(B-V) along the radius of the galaxy, from the 'red' circumnuclear disk down to the 'blue' inner ring, is found. Positions of UBV colors of the bar regions on the two-color diagram differ noticeably from the normal color sequence, which may be explained by the suggestion that newborn stars leave the bar while moving along their orbits.

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