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Toomre Sequence

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HST images of galaxies from the Toomre (1977) sequence. From upper left: NGC 4038, NGC 4676, NGC 7592, NGC 7764A, NGC 6621/2, NGC 3509, NGC 520, NGC 2623, NGC 3256, NGC 3921. Not shown: NGC 7252. [source]


Self-Consistent Models

NGC 4676 (a.k.a. "The Mice") NGC 7252 (a.k.a. "Atoms for Peace")
t1 = -110 h-1 Myr t1 = -580 h-1 Myr
tm = +290 h-1 Myr tm = -260 h-1 Myr
(Barnes & Hibbard, in prep.) (Hibbard & Mihos 1995)



Joshua E. Barnes (barnes@ifa.hawaii.edu)
Last Modified: March 12, 2005