Scaleheights of 486 southern spiral galaxies and some statistical correlation

Details Scaleheights of 486 southern spiral galaxies and some statistical correlation Scaleheights of 486 southern spiral galaxies and some statistical correlation

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..126..503m&link_type=abstract

A & A Supplement series, Vol. 126, December II 1997, 503-508.

Astronomy and Astrophysics

Astronomy

9

Galaxies: Fundamental Parameters, Galaxies: Spiral, Galaxies: Structure

Scientific paper

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. Based on photographic data of the National Geographic Society -- Palomar Observatory Sky Survey (NGS-POSS) obtained using the Oschin Telescope Palomar Mountain. The NGS-POSS was funded by a grant from the National Geographic Society to the California Institute of Technology. The plates were processed into the present compressed digital form with their permission. The Digitized Sky Survey was produced at the Space Telescope Science Institute under US Government grant NAG W-2166. Table A1 is available in electronic from only, via anonymous ftp 130.79.128.5 or http://cdsweb.u-strasbg.fr/Abstract.html

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