SIMBAD references

1994A&AS..103..475B - Astron. Astrophys., Suppl. Ser., 103, 475-502 (1994/March-0)

Parameters of stellar disks from CCD surface photometry of edge-on galaxies.


Abstract (from CDS):

CCD surface photometry in Thuan and Gunn g and r filters is used to study the structure of stellar disks in 27 edge-on galaxies. Parameters for models of the light distribution such as the scale height z0, the radial scale length h, the cut-off radius Rmax, and the central surface brightness µ0 are determined. The observed disks generally show a radial cut-off at a surface brightness level of ∼23 mag/arcsec2, well above the signal-to-noise limit. Several galaxies in our sample have a ratio Rmax/h<3.0, smaller than typical values found in previous studies. The light distribution perpendicular to the plane is, even at visual wavelength, better described by an exponential or a sech function in z than by the sech2 function of an isothermal disk model. The central face-on corrected surface brightness µ0 of the disks presented here are lower than values of comparable face-on samples.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: photometry - galaxies: spiral - galaxies: structure of

Simbad objects: 26

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