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Hubble catches a spiral in the air pump

Date:
September 9, 2013
Source:
NASA
Summary:
Lying more than 110 million light-years away from Earth in the constellation of Antlia (The Air Pump) is the spiral galaxy IC 2560, shown in a new image from NASA/ESA Hubble Space Telescope. At this distance it is a relatively nearby spiral galaxy, and is part of the Antlia cluster -- a group of over 200 galaxies held together by gravity. This cluster is unusual; unlike most other galaxy clusters, it appears to have no dominant galaxy within it.

Spiral galaxy IC 2560.
Credit: Hubble/European Space Agency and NASA

Lying more than 110 million light-years away from Earth in the constellation of Antlia (The Air Pump) is the spiral galaxy IC 2560, shown in a new image from NASA/ESA Hubble Space Telescope. At this distance it is a relatively nearby spiral galaxy, and is part of the Antlia cluster -- a group of over 200 galaxies held together by gravity. This cluster is unusual; unlike most other galaxy clusters, it appears to have no dominant galaxy within it.

In this image, it is easy to spot IC 2560's spiral arms and barred structure. This spiral is what astronomers call a Seyfert-2 galaxy, a kind of spiral galaxy characterized by an extremely bright nucleus and very strong emission lines from certain elements -- hydrogen, helium, nitrogen, and oxygen. The bright center of the galaxy is thought to be caused by the ejection of huge amounts of super-hot gas from the region around a central black hole.

There is a story behind the naming of this quirky constellation -- Antlia was originally named antlia pneumatica by French astronomer Abbé Nicolas Louis de Lacaille, in honor of the invention of the air pump in the 17th century.


Story Source:

The above story is based on materials provided by NASA. Note: Materials may be edited for content and length.


Cite This Page:

NASA. "Hubble catches a spiral in the air pump." ScienceDaily. ScienceDaily, 9 September 2013. <www.sciencedaily.com/releases/2013/09/130909154653.htm>.
NASA. (2013, September 9). Hubble catches a spiral in the air pump. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2013/09/130909154653.htm
NASA. "Hubble catches a spiral in the air pump." ScienceDaily. www.sciencedaily.com/releases/2013/09/130909154653.htm (accessed August 30, 2014).

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