[PIPE2D-884] Missing sky lines Created: 17/Aug/21  Updated: 23/Dec/22  Resolved: 23/Dec/22

Status: Won't Fix
Project: DRP 2-D Pipeline
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: ncaplar Assignee: ncaplar
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: PNG File H_alpha_6562.82_in_OsteBrook.png     PNG File OH_7082_in_OsteBrook.png     PNG File unkonwn_lines_at_929.png    
Issue Links:
Relates
relates to PIPE2D-1017 Revise sky line list Done
relates to PIPE2D-732 Generate an "arc" line file containin... Done
Story Points: 3

 Description   

As noted in PIPE2D-857 there are many (mostly weak) missing lines. The plan is to select several most prominent lines, compare with papers that Robert will send with sky line lists and deduce which lines are we missing.

 Comments   
Comment by ncaplar [ 04/Sep/21 ]

I have identified 3 different reasons that some lines are missing. This is very nonexustive at this point.

1. H_alpha lines observed (e.g., see H_alpha_6562.82_in_OsteBrook.png). Osterbrok mentions N1 line at 658.3, that one is also weakly visible.
2. Some OH lines are missing. For example, there are not OH lines between 705 and 724 in our table and many OH lines available Osterbrock. I wonder if this is because they have similar intensities to O2 that are nearby? Many of these are blends-did they somehow got lost?
3. Unkown lines (e.g., around 929 nm) that are not mentioned in OsterBrock 1997

Papers used were:
Osterbrock 96 (http://articles.adsabs.harvard.edu/pdf/1996PASP..108..277O)
Osterbrock 97 (http://articles.adsabs.harvard.edu/pdf/1997PASP..109..614O)

Comment by ncaplar [ 23/Dec/22 ]

hassan I will close this as I believe this is deprecated now.

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