Astron. Astrophys. Suppl. Ser. 138, 101-107

Spiral galaxies with large optical warps

V. Reshetnikov¹² and F. Combes²

Send offprint request: F. Combes
(e-mail: bottaro@obspm.fr)

1 - Astronomical Institute of St. Petersburg State University, 198904 St. Petersburg, Russia
2 - DEMIRM, Observatoire de Paris, 61 Av. de l'Observatoire, 75014 Paris, France

Received February 16; accepted June 1, 1999

Abstract:

As a result of our statistical study of 540 edge-on galaxies, we present here the images and preliminary statistical analysis of a sub-sample of 60 galaxies, that were selected to be S-type warped spirals. Computing the average volumic density of galaxies from available redshift surveys, a first analysis suggests that warped galaxies are found in denser environments. Only the clearest and strongest warps have been extracted here, and therefore this sample of 60 objects gather the best candidates for future HI or optical works on galaxy warps.

Key words: galaxies: evolution; interactions; spiral; structure