Hubble tension -- any resolution?

[Jaime Rudas]

Really ?

Really. What you quote does not refer at all to calibration of JWST characteristics, but to the calibration of the distance by the TRGB method.

 

[Mordred]

How do you calibrate filters used by the JWST without a good reference ? the paper fully details the process including listing any applicable software the JWST uses.

Not sure what your after but quite frankly that paper specifically details calibrations.
Including some of its different methodologies.

If it helps here is another related paper this one better describes some of the noise issues

https://iopscience.iop.org/article/10.3847/2041-8213/ad1ddd/pdf

 

[Jaime Rudas]

Not sure what your after but quite frankly that paper specifically details calibrations.
Including some of its different methodologies.

Yes, that paper specifically details the calibration of distance measurement by the TRGB method, but it does not address the calibration of JWST characteristics.

 

[Mordred]

Then define JWST characteristics for me because quite frankly that includes the filters and software the JWST uses by my way of thinking

 

[Jaime Rudas]

Then define JWST characteristics for me because quite frankly that includes the filters and software the JWST uses by my way of thinking

The paper deals with the calibration of the distance measurement by the TRGB method, but doesn't deal with the calibration of the JWST filters or software.

 

[Mordred]

The two go hand in hand you cannot determine a distance involving brightness using Leavitt without a solid calibration.

 

[Jaime Rudas]

The two go hand in hand you cannot determine a distance involving brightness using Leavitt without a solid calibration.

Yes, it is possible, but, contrary to what you stated, the methods of the paper aren't related to the calibration of JWST characteristics.

 

[Mordred]

Whatever you believe but when I see a paper measuring well established objects as baseline and discusses its filters and software and details its error margins and compares the different components and software the same telescope uses as well as any details relating to noise reduction then that's directly related to its calibration.

Calibration obviously isn't restricted to just components which I believe your getting at but the links I provided also includes error margins of the components

A common baseline object used being NGC 4285.

The article you linked for example lists 3 independent measurements. That's excellent for calibration the more independent measurements the better. Another common independent measurement for calibration purposes being interstellar parallax.

How else you you establish a zero point baseline.