A&A Supplement series, Vol. 126, December II 1997, 503-508
Received January 2; accepted April 15, 1997
J. Ma - Q.-H. Peng - R. Chen - Z.-H. Ji - C.-P. Tu
Send offprint request: J. Ma, e-mail: qhpeng@nju.edu.cn
Department of Astronomy,
Nanjing University, Nanjing, 210093, China
Based on Peng's method (1988), we obtain
scaleheights of 486 southern spiral galaxies,
the images of which are taken
from the Digitized Sky Survey
at Xinglong
Station of Beijing Astronomical Observatory.
The fitted spiral arms of 70 galaxies are compared with
their images to get their optimum inclinations.
The scaleheights of other 416 ones are listed in Table A1 in
Appendix.
After compiling and analyzing the data, we find some
statistical correlations. The most interesting results are that a flatter
galaxy is bluer and looks brighter, and galaxies become flatter along the
Hubble sequence Sab - Scd.
keywords: galaxies: fundamental parameters --
galaxies: spiral --
galaxies: structure