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NGC  2295 NGC 2292 NGC 2293
Note that the Galaxy at the top of the photo is NGC 2295
Imaged by Martin S. Ferlito
copyright
Gstar-EX Integrating Video Camera
Information provided by atnf.csiro.au


A Gas-sweeping Collision with NGC 2295

It appears that NGC 2292 and 2293 are not merging, and probably not physically related, except that they may be bound members of the LGG 138 group, but not bound to each other. Whilst the ring of HI may then be a primordial feature associated with the formation of NGC 2293, it is possible that the ring has other origins.The radial velocity of NGC 2295 relative to the ring is 220 km s-1, very similar to the maximum observed circular velocity of gas in the ring , and is projected at a distance of $\sim 30$ kpc from the NGC 2292/2293 pair. This galaxy was not detected in HI emission, yet is a 13.6 mag Sab spiral well within the spatial and spectral field of view of the ATCA. The absence of gas in NGC 2295 is highly suggestive that the gas has been removed from the galaxy in some way. Corwin et al. (1985) report the detection of a very faint plume to NGC 2292/2293 from NGC 2295. Has NGC 2295 swept past NGC 2293 and been stripped of its gas disk and outer stellar population?



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