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| Paper: |
A Near-Infrared μ0,K -- log h Relation for Early-Type Spiral Galaxy Disks |
| Volume: |
230, Galaxy Disks and Disk Galaxies |
| Page: |
101 |
| Authors: |
Graham, A. W. |
| Abstract: |
The K-band light-profiles from a sample of roughly 100 disk galaxies have been simultaneously modelled with a seeing convolved Sersic r1/n bulge and an exponential disk. Rather than a constant central disk surface brightness, in the near-infrared, μ0,K is shown to decrease with the logarithm of the disk scale-length (log h) - with a correlation coefficient equal to 0.78, a slope of -2, and a standard deviation of 0.47 mag arcsec-2. Galaxy types Scd or later are observed to have fainter disks. |
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