Remove print message of H0 in picca_xcf

[andreufont]

I just noticed a message of H0=100, what is at least confusing. I believe H0 is not used in picca_xcf, but if we use it we should use a more standard value.

[iprafols]

See the comments in PR #971. The value of H0 should be 100 since we are computing things in Mpc/h, so yes, I think we should remove the print to avoid confusion

[andreufont]

This is all very confusing. I thought we were using the same default cosmo in all DESI papers! I don't see why would Picca ever use H_0=100 as default, regardless of the units we use (km/s, Mpc or Mpc/h). Ignasi, maybe you and Calum can explain this to me in person?

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On Wed, 19 Apr 2023, 10:57 Ignasi Pérez-Ràfols, ***@***.***> wrote: See the comments in PR #971 <#971>. The value of H0 should be 100 since we are computing things in Mpc/h, so yes, I think we should remove the print to avoid confusion — Reply to this email directly, view it on GitHub <#948 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA5RYRYWPCIL6XFSSGOF3Z3XB6SJJANCNFSM6AAAAAATEKBZBQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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[andreufont]

To clarify my comment: when computing pixel pair separations from angles / redshifts in picca_cf you don't need to use H_0, the only thing that matters is Omega_m (in a flat LCDM, otherwise you also need Omega_k or Omega_Lambda). Unless if you compute the correlations in Mpc, buy that's a different discussion. You need to specify other cosmological parameters at the fitting level, but I believe this is not what you are discussing now. Andreu

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On Wed, 19 Apr 2023, 11:21 Andreu Font Ribera, ***@***.***> wrote: This is all very confusing. I thought we were using the same default cosmo in all DESI papers! I don't see why would Picca ever use H_0=100 as default, regardless of the units we use (km/s, Mpc or Mpc/h). Ignasi, maybe you and Calum can explain this to me in person? On Wed, 19 Apr 2023, 10:57 Ignasi Pérez-Ràfols, ***@***.***> wrote: > See the comments in PR #971 <#971>. > The value of H0 should be 100 since we are computing things in Mpc/h, so > yes, I think we should remove the print to avoid confusion > > — > Reply to this email directly, view it on GitHub > <#948 (comment)>, or > unsubscribe > <https://github.com/notifications/unsubscribe-auth/AA5RYRYWPCIL6XFSSGOF3Z3XB6SJJANCNFSM6AAAAAATEKBZBQ> > . > You are receiving this because you authored the thread.Message ID: > ***@***.***> >

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