... NGC 1531/2: InteractingGalaxies . Credit: W. Keel , R. White III, and C. Conselice ( University of Alabama ) . ... Explanation: This dramatic image of an interacting pair of galaxies was made using the 1.5 meter telescope at the Cerro Tololo ...
... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interactinggalaxies, finding no evidence for correlations between SN rate and galaxy properties. ...
... Although astronomers have taken many stunning pictures of galaxies slamming into each other, this image represents the clearest view of how some interactinggalaxies dump material onto their companions. ...
... Normal galaxies between Sa and Sm [1], starburst galaxies [2], galaxies with an active nuclei [1], and interactinggalaxies [3], all show the same SN rate of about 1 in SN units (SNu). ...
... However, in some particular cases, this standard aperture needs to be adapted, especially for galaxies which are interacting, galaxies with a companion or a strong background source within the standard aperture. ...
... The nuclei of the two interactinggalaxies would then presumably be the ``core'' component we have discussed, plus the brightest ``knot'' in the plume, which lies 0B63 away. ...