Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant — mentioned by magicalhippo

Fri, 29 Mar 2024 15:09:26 GMT

Becky Smethurst, an astrophysicist, goes through how the cosmic distance ladder works and the recent JWST results here[1]. As you say, measurement errors of Cepheid stars has been something scientists considered a possibility, hence why they're cross-checking by measuring them in different ways. And, as mentioned in the posted article and the other papers mentioned in the video, it seems that measurement errors are very unlikely to be the culprit. Preprints to the articles Becky mentions are here[2][3][4]. [1]: https://www.youtube.com/watch?v=3NeKR7bqolY&t=1330s [2]…

Paper and discussion history. A mention is not an endorsement.

Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant · HackerPapers discussions

Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant — mentioned by magicalhippo