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Kainulainen commented on this possiblity: “One should consider that seeing so bright ring structure is probably quite time-critical.
Centaurus A is the fifth brightest galaxy in the sky -- making it an ideal target for amateur astronomers. See related link for a list of all stars in Centaurus. Of course, the instrument plays a big role in a sense that adequately high-quality images are needed to perform the analysis,” Dr. Kainulainen said in an email interview.“There is a fundamental difference between the images we use in our paper and the Spitzer images: the wavelength that the images cover. Centaurus A is one of the few galaxies known to exhibit jet-induced star formation.Spitzer infrared observations of the warped ring in Cen A can be found here: Am i missing something? But it’s a different type of star. I gather a bunch up each week and answer them here.The Guide to Space is a series of space and astronomy poddcasts by Fraser Cain, publisher of Universe TodayEpisode 678: Q&A 126: When Did Mars' Dynamo Shut Off? And More…Click to email this to a friend (Opens in new window)Large Ocean, Extensive River Network, Rainfall on Ancient Mars But when I first saw our result, “The Naked Picture of Centaurus A”, on my computer screen, it really was a big WOW-feeling!”Further observations of Centaurus A are definitely in order to further explore the structure of the stellar ring, and the gravitational dynamics that allowed for its formation.“Our plans include observations with the Very Large Telescope (European Southern Observatory) and the Hubble Space Telescope. Therefore, they might actually be quite common for merging galaxies, but they “last” only such a short time that we don’t see them in so many galaxies.”The analysis technique used by the team could be applied to other galaxies to resolve formation structures previously hidden by dust, and provide more information about how violent events alter the formation of elliptical galaxies.“Potentially, the technique can be applied to any relatively nearby galaxy showing prominent dust features. It’s the nearest-known star to the sun. The Milky Way and Andromeda galaxies are going to coalesce in 2.5 billion years or so, and will probably setting into some form of elliptical galaxy (the Andromilkaway galaxy?). My understanding is that Andromeda is about 2.5 megalights from us and we will smash together in about 3-3.5 billion years from now, but how does Centarus become the closest galaxy when it is 11 megalights away?Jon thanks for that. Proxima Centauri is a red dwarf — a small, red glowing star that is about 2,800 degrees Celsius (5,000 degrees Fahrenheit) cooler than our sun. The full text of the letter is available I am not a galaxy structure maven, but it is my understanding that rings like this are similar to a hydrodynamic wave or splash signifying some past event that unleashed energy. @ Spoodle58, some elliptical galaxies do exhibit ‘stellar rings’ around their nuclei, although these rings are usually seen much closer to the nucleus and have a younger stellar component. The planned observations aim particularly at determining how long, and in what magnitude, the structure has been forming stars in the past.

Centaurus has 11 main stars and many more minor stars. Centaurus A (NGC 5128) is one of the most studied objects in the Southern sky, because it is the giant elliptical galaxy with the closest … V810 Centauri is a semiregular variable. Due to geometrical reasons, Centaurus A was a very suitable target for applying the method.
Kainulainen and his team published their results in a letter to Astronomy & Astrophysics, published online July 2nd, 2009. The Centaurus supercluster is a long supercluster containing four rich galaxy clusters - A3526, A3565, A3574 and A3581 as well as hundreds of smaller groups of galaxies. Of course to do this across a whole galaxy requires a lot of energy.What if all elliptical galaxies are just large galactic cores and they all have a spiral of stars surrounding them? The rings are believed to be induced by “a violent event” of merging galaxies, and they may evolve rather quickly to something that no longer looks like a clear, bright ring.