NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-18 T19:35:56 PDT
Help | Comment | NED Home

For refcode 1997A&A...324...80R:
Retrieve 36 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
1997A&A...324...80R Tidally-triggered disk thickening. II. Results and interpretations. Reshetnikov V., Combes F. Received 15 October 1996/Accepted 29 January 1997 Abstract. We have reported in a previous paper (Paper I, Reshetnikov and Combes, 1996A&AS..116..417R) B,V and I band photometric data for a sample of 24 edge-on interacting spiral galaxies, together with a control sample of 7 edge-on isolated galaxies. We discuss here the main result found in this study: the ratio h/z_0_ of the radial exponential scalelength h to the constant scaleheight z_0_ is about twice smaller for interacting galaxies. This is found to be due both to a thickening of the plane, and to a radial stripping or shrinking of the stellar disk. If we believe that any galaxy experienced a tidal interaction in the past, we must conclude that continuous gas accretion and subsequent star formation can bring back the ratio h/z_0_ to higher values, in a time scale of 1 Gyr. Key words: galaxies: evolution, general, interactions, photometry, peculiar, spiral
Retrieve 36 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home