Explanation: Astronomers turn detectives when trying to figure out the cause of unusual sites like NGC 1316. A preliminary inspection indicates that NGC 1316 is an enormous elliptical galaxy that started devouring a smaller spiral galaxy neighbor about 100 million years ago. Supporting evidence includes the dark dust lanes uniquely indicative of a spiral. What remains unexplained are the unusually small globular star clusters, visible as faint dots on the above photograph. Most elliptical galaxies have more and brighter globular clusters than evident in NGC 1316. Yet the observed globulars are too old to have been created by the recent spiral collision. One hypothesis therefore holds that these globulars survive from an even earlier galaxy that was subsumed into NGC 1316.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.

Publikacii s klyuchevymi slovami: colliding galaxies - NGC 1316 Publikacii so slovami: colliding galaxies - NGC 1316
Sm. takzhe: Arp 142: vzaimodeistvuyushie galaktiki ot teleskopa "Dzheims Vebb" Arp 142: galaktika Kolibri Stalkivayushiesya spiral'nye galaktiki Arp 274 Voiny galaktik: M81 i M82 NGC 1316: posle stolknoveniya galaktik NGC 4676: kogda myshki stalkivayutsya NGC 520: stalkivayushiesya galaktiki Vse publikacii na tu zhe temu >>