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Deep red lines in M17 #4

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will-henney opened this issue May 24, 2023 · 4 comments
Open

Deep red lines in M17 #4

will-henney opened this issue May 24, 2023 · 4 comments

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@will-henney
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These are very faint.

Here is [C I] 8727 for reference

CleanShot 2023-05-23 at 23 20 14

And here is DRL 9029, which is the only one I have found so far

CleanShot 2023-05-23 at 23 22 09
@will-henney
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DRL 9114 is also detected, but it is blended with other lines to red and blue

CleanShot 2023-05-23 at 23 30 57

@will-henney
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Sequence of wavelength channels to illustrate this. Note that first and last are contaminated by an ionized line

CleanShot 2023-05-23 at 23 35 54
CleanShot 2023-05-23 at 23 34 04
CleanShot 2023-05-23 at 23 37 07
CleanShot 2023-05-23 at 23 38 37
CleanShot 2023-05-23 at 23 39 21

@will-henney
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DRL 8151 is detected faintly

CleanShot 2023-05-23 at 23 48 56

@will-henney will-henney mentioned this issue May 24, 2023
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@will-henney
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DRL 8459 is strong and unique

CleanShot 2023-05-24 at 09 22 36

This was badly affected by sky line in NGC 346, but is seen clearly here

It shows a filament that is deeper into the cloud than any of the [C I] emission

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@will-henney