Conferences and meetings • Hot topics in Modern Cosmology - Spontaneous...
Spontaneous Workshop (SW) brings together specialists in particle physics, astrophysics and theoretical physics at the Institute of Scientific Studies of Cargèse (IESC) to exchange recent knowledge on...
View ArticleComputers and software • Re: CAMB: calculating the evolution of delta_photon...
It's an approximation, described in the CAMB notes for CAMB implementation and https://arxiv.org/pdf/1104.2933Statistics: Posted by Antony Lewis — April 24 2024
View ArticleComputers and software • CAMB: turn off reionization
Hi Hi, I've come with a question again. I'm trying to see how much effect reionization causes on the CMB spectra. Is there an option in CAMB to turn off reionization? Thanks for helping!Statistics:...
View ArticleComputers and software • Compute H_0, D_M, D_H, etc, at desired effective...
Hello everyone, Using the latest cosmological dataset, I'm using CosmoMC to run chains for certain models. I want to obtain the values of H_0, D_M, D_H, etc, at other effective redshift z_eff that I...
View ArticleComputers and software • Re: Compute H_0, D_M, D_H, etc, at desired effective...
Look in CosmologyTypes.However you might want to consider using Cobaya.Statistics: Posted by Antony Lewis — April 26 2024
View ArticleComputers and software • A question
Hi Antony,How is the way to acknowledge the use of CAMB in a paper?Thanks,ClaraStatistics: Posted by Clara Rojas — April 27 2024
View ArticleComputers and software • Re: CAMB: turn off reionization
Yes, tau=0Statistics: Posted by Antony Lewis — April 28 2024
View ArticleComputers and software • Re: A question
https://github.com/CobayaSampler/cobaya/blob/master/cobaya/theories/camb/camb.bibtexStatistics: Posted by Antony Lewis — April 28 2024
View ArticleComputers and software • Examples of cobaya code needed please
I have worked through both of the Cobaya examples on the website but am still in need of more examples to help me understand how to use it (I am very much a newbie).Where can I find some more code...
View ArticleConferences and meetings • AI goes MAD^2, Madrid, October 14-16, 2024
Dear all,We are happy to announce the second iteration of the 3-day workshop on Machine Learning and Artificial Intelligence, “AI goes MAD” at the Instituto de Física Teórica...
View ArticleComputers and software • CAMB: GR correction?
Hi,I'm trying to calculate the GR correction for an N-body simulation as defined below.[math] k^2 \gamma_{GR} = -\left(\partial_\tau + \frac{\dot{a}}{a}\right)\dot{H}_T + 8\pi G a^2 \Sigma...
View ArticleComputers and software • Re: CAMB: GR correction?
It's not pre-coded. You can use the tools of https://camb.readthedocs.io/en/latest/ScalEqs.htmlto relate to CAMB synchornous-gauge variables, e.g. I think you basically want A(t) (acceleration) in the...
View ArticleComputers and software • CosmoMC: chi^2 values with action 4 vs action 2
Hello,I'm running CosmoMC with the some recent cosmological measurements (CMB, BAO, PantheonPlus).When I run CosmoMC with action 4 (testing likelihoods), the values of chi^2 are different for BAO and...
View ArticleComputers and software • Re: CosmoMC: chi^2 values with action 4 vs action 2
different parameters?Statistics: Posted by Antony Lewis — May 06 2024
View ArticleComputers and software • CosmoMC: Chi-sq with action=2 vs action=4
Hello,I'm running a dark energy model with a dynamical equation of state (already tested). However, by INCLUDING Planck 2018 likelihoods I find different values of chi-square with action =4 vs action...
View ArticleComputers and software • Re: CosmoMC: Chi-sq with action=2 vs action=4
Is action=4 run with central parameters equal to the best-fit found (for all parameters)?Statistics: Posted by Antony Lewis — May 07 2024
View ArticlearXiv papers • [2405.02252] A Parameter-Masked Mock Data Challenge for...
Paper describes challenge data and first round of results from a public, parameter-masked challenge for analysis of galaxy clustering using beyond-2point statistics. Challenge organizers always...
View ArticleComputers and software • highL_unlensed_cl_template not included in...
Hello,I'm testing some likelihoods in CosmoMC version 2016 before going to full cobaya. However, in my test.inputparams file I don't see the following line:"highL_unlensed_cl_template =...
View ArticleComputers and software • Re: highL_unlensed_cl_template not included in...
Not sure, maybe it's set by default.Statistics: Posted by Antony Lewis — May 15 2024
View ArticleComputers and software • CAMB seg faults with set_w_a_table
Hi,I'm using CAMB with a modified version of Cobaya which adds an interface to `set_w_a_table` to allow for more general dark energy models. This seems to work fine for some datasets (such as the new...
View Article