In the Dark

It’s time once more for the regular Saturday morning update of papers published at the Open Journal of Astrophysics. Things have picked up a bit after a quiet couple of weeks. Since the last update we have published three new papers which brings the number in Volume 8 (2025) up to 21 and the total so far published by OJAp up to 256. We’re now officially a byte-sized journal!

In chronological order of publication, the three papers published this week, with their overlays, are as follows. You can click on the images of the overlays to make them larger should you wish to do so.

The first paper to report is “Baryon-free S_8 tension with stage IV cosmic shear surveys” by Ottavia Truttero, Joe Zuntz, Alkistis Pourtsidou and Naomi Robertson (all based at the University of Edinburgh, UK). This paper is in the folder marked Cosmology and NonGalactic Astrophysics and it was published on Monday 24th February 2025. It presents a study of the effect of baryonic feedback in the determination of cosmological parameters and the possibility of using large-scale clustering information to mitigate its effects

Here is the overlay:

You can read the officially accepted version of this paper on arXiv here.

The second paper of the week is “Power Spectra of JWST images of Local Galaxies: Searching for Disk Thickness” by Bruce Elmegreen (USA) and 15 others based in the USA, Sweden, UK, Italy and Australia.

It appears in the folder  Astrophysics of Galaxies and it describes a method for Looking for a ‘kink’ in the power spectrum of galaxy images that might indicate at some transition from two-dimensional to three-dimensional turbulence on the scale of the disk thickness. This paper was published on Wednesday 26th February 2025.

Here is the overlay:

You can find the officially accepted version of this paper on arXiv here.

The final paper, also published on Wednesday 26th February in the folder Astrophysics of Galaxies is “The evolution of galaxy morphology from redshift z=6 to 3: Mock JWST observations of galaxies in the ASTRID simulation” by Patrick LaChance (Carnegie Mellon University, Pittsburgh; hereafter CMU), Rupert Croft (CMU), Yueying Ni (CfA Harvard), Nianyi Chen (CMU), Tiziana Di Matteo (CMU), and Simeon Bird (UC Riverside); all based in the USA. This paper describes an An analysis of a large sample of mock observations of JWST galaxies obtained from the ASTRID simulation revealing how galaxy properties are expected to evolve with redshift.

Here is the overlay:

The official published version can be found on the arXiv here.

That brings us up to the end of February 2025. I had a delve through the archives and found that by the same stage last year we published 17 papers compared to this year’s 21. It’s small numbers, of course, but we’re up about 23% so far this year.

That’s all for this week. I’ll do another update next Saturday.

This entry was posted on March 1, 2025 at 10:27 am and is filed under OJAp Papers, Open Access, The Universe and Stuff with tags arXiv:2401.16608v3, arXiv:2410.18191v2, arXiv:2411.06594v2, Astrid Simulations, Astrophysics of Galaxies, Baryonic Feedback, cosmological parameters, Cosmology, Cosmology and NonGalactic Astrophysics, Diamond Open Access, Diamond Open Access Publishing, JWST Galaxies, Open Access Publishing, The Open Journal of Astrophysics, Turbulence. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.