What Is the Mathematical Form of Type Ia Supernovae Light Curves?

AI Thread Summary
The discussion focuses on finding the mathematical form of Type Ia supernovae light curves to analyze supernovae data, specifically for fitting a function to magnitude versus time data. Users suggest various curve fitting algorithms, including a specific one linked in the thread, which operates on Linux and Mac OS but requires Fortran compilation. There are also mentions of alternative resources that may be more user-friendly for this analysis. Additionally, it is noted that these tools can potentially run well under Cygwin on Windows. The conversation emphasizes the need for accessible methods to analyze supernovae light curves effectively.
shinjinibsu
Messages
4
Reaction score
0
Does anyone know the mathematical form of Type Ia supernovae light curves? I am trying to analyze supernovae data. I need to fit a function to the magnitude vs time data. So I require the mathematical form for magnitude as a function of time. If anyone has any idea about that, or can suggest a way to bypass this problem PLEASE let me know.
 
Space news on Phys.org
There are any number of curve fitting algorithms that could be applied. Here is one that may be useful - http://supernovae.in2p3.fr/~guy/salt/
 
Last edited by a moderator:
Chronos said:
There are any number of curve fitting algorithms that could be applied. Here is one that may be useful - http://supernovae.in2p3.fr/~guy/salt/

Does it work in windows or do I need to install Linux for that?
 
Last edited by a moderator:
Last edited by a moderator:
Thank you.
 
These kinds of things usually run well under Cygwin in windows.
 

Thread 'Matter density right after the decoupling'

https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
View full post »

Thread 'Hubble Constant, Dark Energy and the Expanding Universe'

Why was the Hubble constant assumed to be decreasing and slowing down (decelerating) the expansion rate of the Universe, while at the same time Dark Energy is presumably accelerating the expansion? And to thicken the plot. recent news from NASA indicates that the Hubble constant is now increasing. Can you clarify this enigma? Also., if the Hubble constant eventually decreases, why is there a lower limit to its value?
View full post »

Similar threads

A Is there a stretching of the light curves of supernovae 1a?
Replies
5
Views
2K
B Lack of time dilation in type 1a supernova
Replies
4
Views
2K
I Curve fitting the luminosity distance and redshift data
Replies
5
Views
2K
I How do you get to the conclusion that there is accelerating expansion?
Replies
23
Views
2K
Marginal evidence for cosmic acceleration from Type Ia SNe
2
Replies
93
Views
13K
Type Ia Supernova not Standard Candles? I'm confused .
Replies
16
Views
4K
Luminosity Distance, Determination From Type Ia SN
Replies
20
Views
6K
I What are the Dynamics and Impacts of a Type II Supernova?
Replies
11
Views
2K
Redshift of supernova light curve
Replies
10
Views
2K
I Is There Evidence to Suggest Our Universe is Anisotropic?
Replies
8
Views
3K

Hot Threads

Recent Insights

Back
Top