Thread: SMC and 47 Tuc
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Old 30-09-2019, 04:04 PM
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strongmanmike (Michael)
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Quote:
Originally Posted by gregbradley View Post
The SMC is a very odd shape. Is that a hint of a leftover spiral structure I see in it?

I can't imagine it formed into that irregular shape without the MWay distorting it big time.

Also all the blue stars. Is that because it has lots of new hot stars?

Greg.
Regarding the shape of the SMC, this article may explain it? namely:

"In looking at this data, the team also observed that all the stars within the Wing—that southeast part of the SMC—are moving in a similar direction and speed. This demonstrates the SMC and LMC likely had a collision a few hundred million years ago."

There are several reasons for the prominent blue/teal/cyan in my image..

1) There are a lot of blue giants and plenty of star birth going on!(Great article here)
2) I added OIII to the mix which imparts a slight teal-cyan hue
3) I just like the look with the blue/cyan/teal turned up a little

While I have certainly favoured the blue for my own aesthetic preferences, there is no doubt the SMC is indeed rather blue see:

Gendler and Gendler et al (multiple scopes, including DSS data) and Lorenzi

Hope that was helpful Greg

Mike
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