<p>I have observation data of galaxies (in FITS format). From the FITS data, I want to calculate &amp; plot the decomposed rotation curves as pictured below. Is there a software package that will do that (preferably in Python)?</p>
<p>Context: I'm interested in finding the radial mass distribution of the dark matter in each galaxy. If there is already a database or catalog of this, then telling me that would be even better.</p>
<p>[Image from: Roos, Matts. (2010). Dark Matter: The evidence from astronomy, astrophysics and cosmology. ]</p>
<p><a href="https://i.sstatic.net/96b7p.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/96b7p.png" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2021-04-11T08:31:09.233Z
What do you mean by "observation data"?
ProfRob
CC BY-SA 4.0
2021-04-13T03:55:01.397Z
;I’m voting to close this question because it was double posted and has an answer here: https://physics.stackexchange.com/questions/628564/is-there-software-to-calculate-plot-decomposed-rotation-curves-from-observationa/628698#628698
Connor Garcia
CC BY-SA 4.0
2021-04-14T04:33:05.340Z
@ConnorGarcia Yes, I agree. I sent a message to the moderators yesterday. Is it possible to link this question to the other stack exchange?
user1937362
<observational-astronomy><astrophysics><dark-matter>
Is there software to calculate/plot decomposed rotation curves from observational data (FITS, etc)?
user1937362
# Is there software to calculate/plot decomposed rotation curves from observational data (FITS, etc)?

(Asked by: username_0 on 2021-04-10)

I have observation data of galaxies (in FITS format). From the FITS data, I want to calculate & plot the decomposed rotation curves as pictured below. Is there a software package that will do that (preferably in Python)?

Context: I'm interested in finding the radial mass distribution of the dark matter in each galaxy. If there is already a database or catalog of this, then telling me that would be even better.

[Image from: Roos, Matts. (2010). Dark Matter: The evidence from astronomy, astrophysics and cosmology. ]

[![enter image description here](https://i.sstatic.net/96b7p.png)](https://i.sstatic.net/96b7p.png)

**Tags:** observational-astronomy, astrophysics, dark-matter
> **Comments:**
> **username_1**: What do you mean by "observation data"?  
> **username_2**: ;I’m voting to close this question because it was double posted and has an answer here: https://physics.stackexchange.com/questions/628564/is-there-software-to-calculate-plot-decomposed-rotation-curves-from-observationa/628698#628698  
> **username_0**: @ConnorGarcia Yes, I agree. I sent a message to the moderators yesterday. Is it possible to link this question to the other stack exchange?  

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## 0 answers

