Uncertainties in best-fit model parameters

classic Classic list List threaded Threaded
5 messages Options
Reply | Threaded
Open this post in threaded view
|

Uncertainties in best-fit model parameters

AstroT
Can anyone advice on where to find the 1-sigma uncertainties for the best-fit model parameters?
Reply | Threaded
Open this post in threaded view
|

Re: Uncertainties in best-fit model parameters

karenacollins
Administrator
AIJ does not currently implement MCMC fitting, so not uncertainties are extracted. We are planning to introduce MCMC fitting and uncertainty support in 2025.

Karen
Reply | Threaded
Open this post in threaded view
|

Re: Uncertainties in best-fit model parameters

AstroT
Thank you Karen. Your quick feedback is much appreciated!

Does that mean AIJ currently does not report any parameter uncertainties at all?
Reply | Threaded
Open this post in threaded view
|

Re: Uncertainties in best-fit model parameters

karenacollins
Administrator
AIJ computes per point photometric uncertainties, but currently provides no fitted transit model uncertainties. Since global fits to all available data are normally performed for publications using MCMC-based tools such as EXOFAST, AIJ MCMC fitting has been a lower AIJ development priority. However, we recognize that single light curve MCMC (and the resulting transit model uncertainties) would be useful for some users, so we expect to implement MCMC in 2025. After AIJ MCMC implementation, AIJ will extract and provide transit model uncertainties.  

Karen
Reply | Threaded
Open this post in threaded view
|

Re: Uncertainties in best-fit model parameters

AstroT
Fully understand. Thank you for your work and maintaining AIJ!