Weekly Update from the Open Journal of Astrophysics 14/11/2026
It’s time for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further five papers, bringing the number in Volume 9 (2026) to 264 and the total so far published by OJAp up to 712.
I continue to include the posts made on our Mastodon account (on Fediscience); these announcements also contain a clickable form of the DOI for each paper. Our Mastodon account has regular updates and other announcements from OJAp too, including posts from the OJAp blog.
The first paper this week was published on Tuesday 10th November in the folder Instrumentation and Methods for Astrophysics . The title is “Fast and accurate bandpass integration of complex SEDs with neural networks” and it is writtenby Leo Alessandro Bianchi (U. Oslo, Norway). The authors introduce pyfine, a neural-network tool for fast, accurate spectral bandpass integration, achieving substantial speedups with minimal memory use across two test cases.
The overlay for this one is here:
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
The second paper for this week, published on Wednesday 11th November in the folder Cosmology and Nongalactic Astrophysics is “Calibration of CMB Polarisation Using Cross-Experiment Correlations” by Claire Rigouzzo & Eugene A. Lim (King’s College London, UK) and Susanna Azzoni & Yiqi Liu (Princeton U. USA). This paper describes a cross-correlation method that calibrates polarization angles between CMB experiments without suppressing parity-violating signals, potentially improving calibration precision for searches for cosmic birefringence.
The overlay looks like this:
The official version of the paper can be found on arXiv here and the Fediverse announcement here:
The third paper of the week, also published on Wednesday November 11th, but in the folder Astrophysics of Galaxies is “The Entangling of Supernova Feedback Impacts with Coarsening Simulation Resolution” by Eric Zhang (U.C. Riverside, USA) and 13 others from USA, China, Italy, Germany and Canada. High-resolution dwarf-galaxy simulations show that supernovae suppress star formation locally in dense regions but drive outflows from diffuse gas—processes that coarse-resolution models cannot reliably distinguish.
The overlay for this is here:
The accepted version of this one can be found on the arXiv here and the Mastodon announcement here:
Our fourth paper of the week is “Effect of ionizing photon escape fraction in faint galaxies on modeling reionization history of the universe” by Zewei Wu, Andrey Kravtsov and Harley Katz (U. Chicago, USA). This was published on Friday November 13th in the folder Astrophysics of Galaxies. It explains how modelling suggests faint galaxies can drive hydrogen reionization, but their contribution depends strongly on ionizing-photon escape assumptions; constant or star-formation-based escape models fit observations better than strongly luminosity-dependent escape.
The overlay is here:
The officially accepted version of this paper can be found on arXiv here and the Mastodon announcement is:
And the fifth and final paper for the week is “The Synthetic Absorption Line Spectral Almanac (SALSA)” by Dylan Nelson (U. Heidelberg, Germany) and 12 others distributed around the world. This was also published on Friday November 13th in the folder Astrophysics of Galaxies. SALSA is a public, extensive library of synthetic absorption spectra from cosmological simulations, designed to support studies of gas around galaxies, survey planning, and comparisons between simulations and observations.
The overlay for this one is here:
The officially accepted version of this paper can be found on arXiv here and the Mastodon announcement is here:
That concludes this week’s update. There was a holiday in the USA on Wednesday 11th November, which meant no arXiv announcement the following day. I’ll do another update next week by which time we should have caught up on the backlog.
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