Talk:CEERS-93316

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Created talk-page[edit]

Created the "CEERS-93316" talk-page - Stay Safe and Healthy !! - Drbogdan (talk) 03:40, 4 August 2022 (UTC)[reply]

beat me to it - again! haha. Space pierogi (talk) 04:04, 16 August 2022 (UTC)[reply]
Could we include the color image of CEERS-93316 from here:
https://www.bbc.com/news/science-environment-62311562 Unskathd (talk) 02:39, 22 August 2022 (UTC)[reply]
@Unskathd: (and others) - Thanks for your comments - and request - would like to include such an image but, due to terms of copyright of the source, may not be ok with Wikipedia - usually, NASA images are ok - for more related details, see "WP:COPYRIGHT" - thanks again - and - Stay Safe and Healthy !! - Drbogdan (talk) 11:21, 22 August 2022 (UTC)[reply]
I've reached out to the CEERS Consortium to see what kind of license they are using for that image. Hopefully they are willing to work with us. — Huntster (t @ c) 05:15, 23 August 2022 (UTC)[reply]

Light travel time[edit]

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)[reply]

@GeorgeDishman: (and others) - Thank You *very much* for your comments - and correction - yes - *entirely* agree - my original misedit could have been better of course - Thanks again - and - Stay Safe and Healthy !! - Drbogdan (talk) 17:38, 4 August 2022 (UTC)[reply]

@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)[reply]

References

  1. ^ a b Kempner, Joshua (2022). "KEMPNER Cosmology Calculator". Kempner.net. Retrieved 6 August 2022. KEMP Cosmology Calculator - Set H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters")
  2. ^ Staff (2018). "UCLA Cosmological Calculator". UCLA. Retrieved 6 August 2022. Light travel distance was calculated from redshift value using the UCLA Cosmological Calculator, with parameters values as of 2018: H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters" )
  3. ^ Staff (2022). "ICRAR Cosmology Calculator". International Centre for Radio Astronomy Research. Retrieved 6 August 2022. ICRAR Cosmology Calculator - Set H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters")
  4. ^ Planck Collaboration (2020). "Planck 2018 results. VI. Cosmological parameters". Astronomy & Astrophysics. 641. page A6 (see PDF page 15, Table 2: "Age/Gyr", last column). arXiv:1807.06209. doi:10.1051/0004-6361/201833910. S2CID 119335614.
  5. ^ Staff (1 August 2022). "Edinburgh astronomers find most distant galaxy - Early data from a new space telescope has enabled Edinburgh astronomers to locate the most distant galaxy ever found". University of Edinburgh. Retrieved 6 August 2022.
  6. ^ Starr, Michelle (5 August 2022). "Astronomers Say They've Found The Most Distant Galaxy Ever Observed". ScienceAlert. Retrieved 8 August 2022.

May depend on my poor english[edit]

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)[reply]

Size?[edit]

There must be a size estimate, for the estimated distance?... Fig (talk) 17:01, 26 January 2023 (UTC)[reply]

@Fig wright: Thank You for your question - afaik atm - the estimated distance is noted in the lede, "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)[reply]

Sorry - I meant a size estimate for the galaxy. I.e. 5,000ly across, or whatever. Fig (talk) 20:35, 26 January 2023 (UTC)[reply]

@Fig wright: Good Question - haven't been able to find an answer to your question - guess we may have to wait and see on follow up studies re the across distance size of the galaxy - iac - Stay Safe and Healthy !! - Drbogdan (talk) 20:52, 26 January 2023 (UTC)[reply]

References

  1. ^ Wright, Edward L. (2022). "Ned Wright's Javascript Cosmolgy Calculator". University of California, Los Angeles. Retrieved 26 January 2023. (H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters" )

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)[reply]

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