Scale Lengths in Disk Surface Brightness as Probes of Dust Extinction in Three Spiral Galaxies: M51, NGC 3631, and NGC 4321

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Scale Lengths in Disk Surface Brightness as probes of Dust Extinction

We have measured the radial brightness distributions in the disks of three nearby face-on spirals: M 51, NGC 3631, and NGC 4321 (M 100) in the photometric bands B through I, with the addition of the K band for M 51 only. The measurements were made by averaging azimuthally, in three modes, the two-dimensional surface brightness over the disks in photometric images of the objects in each band: (a...

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ژورنال

عنوان ژورنال: The Astrophysical Journal

سال: 1996

ISSN: 0004-637X,1538-4357

DOI: 10.1086/177593