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Astronomers conduct a multi-frequency study of the Milky Way-like spiral galaxy NGC 6744 5nvklj





Astronomers conduct a multi-frequency study of the Milky Way-like spiral galaxy NGC 6744 9tpt39

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Astronomers conduct a multi-frequency study of the Milky Way-like spiral galaxy NGC 6744

Dragon
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Post by Dragon Tue Mar 06, 2018 5:04 pm

An international team of astronomers has conducted a multi-frequency study of NGC 6744, one of the most Milky Way-like spiral galaxies. The new research, published February 8 in a paper on arXiv.org, identifies radio and X-ray sources in NGC 6744 and estimates its star formation rate.

Discovered in 1823, NGC 6744 is an intermediate spiral galaxy located some about 30 million light years away in the constellation Pavo. It is thought to be one of the most Milky Way-like spiral galaxies in our immediate vicinity, and is perceived by astronomers as a useful analogue to our own galaxy when it comes to studying objects such as supernova remnants and H II regions—clouds of glowing gas and plasma in which star formation takes place.

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Dragon
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Post by Dragon Tue Mar 06, 2018 5:06 pm

Astronomers conduct a multi-frequency study of the Milky Way-like spiral galaxy NGC 6744 1-astronomersc
Credit: Yew et al., 2018

WISE 3-color (W1+W2+W3) image of NGC 6744. Left panel shows the images before star subtraction, and the right panel after.

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Post by Dragon Tue Mar 06, 2018 5:08 pm



This sequence starts with a view of the southern part of the Milky Way. As we zoom in we can first see the globular star cluster NGC 6752 and then the spiral galaxy NGC 6744, lying about 30 million light-years from us in the constellation of Pavo (The Peacock).

We also catch a glimpse of the small irregular galaxy NGC 6744A, which lies close to NGC 6744. The final detailed view shows a new image of NGC 6744 from the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile.

 

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