Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

diameter of NGC 3077 is too large #30

Open
moustakas opened this issue Mar 1, 2025 · 1 comment
Open

diameter of NGC 3077 is too large #30

moustakas opened this issue Mar 1, 2025 · 1 comment

Comments

@moustakas
Copy link

The diameter recorded for NGC 3077 (24 arcmin) is far too large; LVGDB lists 6.46 arcmin and SGA-2020 records 9.267 arcmin. I would adopt the SGA-2020 value--
https://relay.sao.ru/lv/lvgdb/object.php?name=NGC3077&id=175
https://www.legacysurvey.org/viewer?ra=150.8347&dec=68.7344&layer=ls-dr9-north&zoom=11&sga

@apace7
Copy link
Owner

apace7 commented Mar 3, 2025

The current rhalf comes from Okamoto et al 2023, from fitting resolved stars.

The fits in this paper with the current rhalf seem reasonable.

Image

Image

Image

It's pretty clear that this is larger then the diameter in SGA-2020. This may be due to resolved stars/versus integrated light and the data targeting different stellar populations.

I will update the rhalf to the SGA-2020 value.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants