Physical star spot modeling with limb darkening
See original GitHub issueHello.
Starry
is very useful and convenient for me. Thank you.
Now, I am trying to model star spots.
For physical modeling, I would like to compare starry’s gaussian amplitude(add_gaussian()
) and star spot temperature.
I think we can compute it by comparing intensity from black body and a value of star spot model.
(For example, if the star spot locates at x=0, y=0, we can get the amplitude value of the star spot by using map(x=0, y=0)
in https://rodluger.github.io/starry/v0.3.0/tutorials/basics1.html#Using-starry)
However, If the star have some star spots, the amplitude was tempted by normalization. How can I get this value? I came up with two ideas.
- Make a new
map(lat, lon)
option - Make a new option to prohibit a normalization. I prefer No.2, because this make us easy to set up the desired star spots.
Do you have any ideas to solve this?
Thank you.
Issue Analytics
- State:
- Created 4 years ago
- Comments:8 (3 by maintainers)
Top Results From Across the Web
Limb darkening and exoplanets: testing stellar model ...
Limb darkening is fundamental in determining transit light-curve shapes, and is typically modelled by a variety of laws that parametrize the intensity profile ......
Read more >High-precision stellar limb-darkening measurements
We measure LD in a sample of 38 Kepler planetary candidate host stars covering effective ... dict a slightly weaker limb darkening than...
Read more >High-precision Stellar Limb-darkening in Exoplanetary Transits
In active stars, the presence of dark or bright spots on the surface can change the "effective" limb-darkening coefficients relative to the unperturbed...
Read more >arXiv:1908.03222v2 [astro-ph.EP] 11 Oct 2019
Limb darkening models of spherical stars are parameterized with the cosine of the angle measured from the sub-stellar point,.
Read more >Limb-darkening Measurements on Exoplanet Host Stars and ...
1.12 Model transit light curves with different limb darkening . ... Stellar spots and the granulation can be found here. Although this is....
Read more >
Top Related Medium Post
No results found
Top Related StackOverflow Question
No results found
Troubleshoot Live Code
Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free
Top Related Reddit Thread
No results found
Top Related Hackernoon Post
No results found
Top Related Tweet
No results found
Top Related Dev.to Post
No results found
Top Related Hashnode Post
No results found
Awesome, thanks for helping me debug this.
Hi @rodluger, Thank you. Now, I understood the specification of the
add_spot(intensity= )
.Added option is very nice! I tried it and confirmed my issue was solved. Thank you for your kindness and quick responses.