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Created the " CEERS-93316" talk-page - Stay Safe and Healthy !! - Drbogdan ( talk) 03:40, 4 August 2022 (UTC)
The light travel time (distance) is given as 16.7 billion (light) years which is impossible as it exceeds the age of the universe. The value 16.7 is the upper limit of the redshift, the value from the discovery paper is 16.7±0.1. P.S. I have now updated the text awaiting review. George Dishman ( talk) 16:19, 4 August 2022 (UTC)
@ GeorgeDishman: (and others) - BRIEF Followup - did a bit of homework and determined that the best available "Cosmology Calculator" may be the one by Kempner, [1] although the ones by UCLA [2] and ICRAR [3] seem worthy as well - updated the main article based on results using the "Kempner Cosmology Calculator" [Settings: H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at " Lambda-CDM model#Parameters"] [1] - compared to the current estimated age of the universe as 13.787±0.020 Gyr, [4] Kempner (z=0) gives the closest age as 13.7825; whereas UCLA gives 13.9180 and ICRAR gives 13.7965 - in any case - the updated edits now seem ok, and the calculated results agree very well with WP:Reliable Sources [5] [6] - let me know if otherwise of course - Stay Safe and Healthy !! - Drbogdan ( talk) 17:35, 5 August 2022 (UTC)
References
but I feel that a few words may be missing in
The presence of so many distant galaxies contradicts the models of the evolution of the universe after the Big Bang and, moreover, why its distant galaxies are so distributed in the celestial vault.
e.g. "asks to explain" before why (or a ? at the end).
Moreover I would like to known how are "so" distributed (at least to have a reference in this place - I suspect than an expert will find easily the proper link in the text, but I am not an expert). thanks 151.29.55.235 ( talk) 12:44, 29 September 2022 (UTC)
There must be a size estimate, for the estimated distance?... Fig ( talk) 17:01, 26 January 2023 (UTC)
"CEERS-93316 would have a light-travel distance ( lookback time) of 13.7 billion years, and, due to the expansion of the universe, a present proper distance of 34.9 billion light-years. [1]"- hope this helps in some way - in any case - Thanks again for your question - and - Stay Safe nd Healthy !! - Drbogdan ( talk) 18:09, 26 January 2023 (UTC)
Sorry - I meant a size estimate for the galaxy. I.e. 5,000ly across, or whatever. Fig ( talk) 20:35, 26 January 2023 (UTC)
References
The pre-print paper here [1] gives a mass (1 billion solar masses), but not a size, strangely. Fig ( talk) 14:45, 27 January 2023 (UTC)
This is the
talk page for discussing improvements to the
CEERS-93316 article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||
|
Created the " CEERS-93316" talk-page - Stay Safe and Healthy !! - Drbogdan ( talk) 03:40, 4 August 2022 (UTC)
The light travel time (distance) is given as 16.7 billion (light) years which is impossible as it exceeds the age of the universe. The value 16.7 is the upper limit of the redshift, the value from the discovery paper is 16.7±0.1. P.S. I have now updated the text awaiting review. George Dishman ( talk) 16:19, 4 August 2022 (UTC)
@ GeorgeDishman: (and others) - BRIEF Followup - did a bit of homework and determined that the best available "Cosmology Calculator" may be the one by Kempner, [1] although the ones by UCLA [2] and ICRAR [3] seem worthy as well - updated the main article based on results using the "Kempner Cosmology Calculator" [Settings: H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at " Lambda-CDM model#Parameters"] [1] - compared to the current estimated age of the universe as 13.787±0.020 Gyr, [4] Kempner (z=0) gives the closest age as 13.7825; whereas UCLA gives 13.9180 and ICRAR gives 13.7965 - in any case - the updated edits now seem ok, and the calculated results agree very well with WP:Reliable Sources [5] [6] - let me know if otherwise of course - Stay Safe and Healthy !! - Drbogdan ( talk) 17:35, 5 August 2022 (UTC)
References
but I feel that a few words may be missing in
The presence of so many distant galaxies contradicts the models of the evolution of the universe after the Big Bang and, moreover, why its distant galaxies are so distributed in the celestial vault.
e.g. "asks to explain" before why (or a ? at the end).
Moreover I would like to known how are "so" distributed (at least to have a reference in this place - I suspect than an expert will find easily the proper link in the text, but I am not an expert). thanks 151.29.55.235 ( talk) 12:44, 29 September 2022 (UTC)
There must be a size estimate, for the estimated distance?... Fig ( talk) 17:01, 26 January 2023 (UTC)
"CEERS-93316 would have a light-travel distance ( lookback time) of 13.7 billion years, and, due to the expansion of the universe, a present proper distance of 34.9 billion light-years. [1]"- hope this helps in some way - in any case - Thanks again for your question - and - Stay Safe nd Healthy !! - Drbogdan ( talk) 18:09, 26 January 2023 (UTC)
Sorry - I meant a size estimate for the galaxy. I.e. 5,000ly across, or whatever. Fig ( talk) 20:35, 26 January 2023 (UTC)
References
The pre-print paper here [1] gives a mass (1 billion solar masses), but not a size, strangely. Fig ( talk) 14:45, 27 January 2023 (UTC)