Archive for November, 2025

Virtually in Chile

Posted in Maynooth, Open Access, Talks and Reviews with tags , , , on November 4, 2025 by telescoper

Today has been a very busy day. I had a one-hour lecture on Partial Differential Equations from 11-12 this morning and a two-hour lecture on Ordinary Differential Equations from 2-4 this afternoon. In between those instead of having a lunch break, I was virtually in Chile giving a talk via Teams about the Open Journal of Astrophysics at LISA 10. That is not LISA as in the Laser Interferometric Space Antenna, but LISA as in Library and Information Services in Astronomy. I was invited to attend this in person, and would have gone, had it not clashed with teaching, as I have never set foot in Chile nor anywhere else in South America.

The talk went well and I had a number of questions and comments.

I got up early this morning to publish a paper taking our total so far to 399. By an unfortunate coincidence there was some problem with the integration between Crossref and our Scholastica platform so the publication didn’t go through properly. When I returned after my afternoon lectures, however, I found that whatever the problem was, it had sorted itself out; the paper is here.

The last talk I gave of this kind was May 2025, and the slides for that talk indicate that OJAp had published 293 papers so we have published over 100 papers in the 6 months since then. Unless there is another glitch tomorrow I expect we’ll reach 400 in the morning.

Denario

Posted in The Universe and Stuff with tags , , , on November 3, 2025 by telescoper

I’ve been alerted (by one of the authors) to a paper in the computer science/artificial intelligence section on arXiv, called The Denario project: Deep knowledge AI agents for scientific discovery by Francisco Villaescusa-Navarro et al. The abstract follows:

We present Denario, an AI multi-agent system designed to serve as a scientific research assistant. Denario can perform many different tasks, such as generating ideas, checking the literature, developing research plans, writing and executing code, making plots, and drafting and reviewing a scientific paper. The system has a modular architecture, allowing it to handle specific tasks, such as generating an idea, or carrying out end-to-end scientific analysis using Cmbagent as a deep-research backend. In this work, we describe in detail Denario and its modules, and illustrate its capabilities by presenting multiple AI-generated papers generated by it in many different scientific disciplines such as astrophysics, biology, biophysics, biomedical informatics, chemistry, material science, mathematical physics, medicine, neuroscience and planetary science. Denario also excels at combining ideas from different disciplines, and we illustrate this by showing a paper that applies methods from quantum physics and machine learning to astrophysical data. We report the evaluations performed on these papers by domain experts, who provided both numerical scores and review-like feedback. We then highlight the strengths, weaknesses, and limitations of the current system. Finally, we discuss the ethical implications of AI-driven research and reflect on how such technology relates to the philosophy of science. We publicly release the code at this https URL. A Denario demo can also be run directly on the web at this https URL, and the full app will be deployed on the cloud.

arXiv:2510.26887

Here’s a random picture from the paper:

I haven’t had time to read the paper yet – it’s 270 pages long – but I’m sure it will provoke strong reactions both in favour and against the idea of an AI research assistant. Comments are welcome through the box below.

P.S. The name Denario appears to be derived from the Latin “denarius”, a coin roughly equivalent to a day’s pay for a skilled worker in the days of the Roman Empire. More amusingly, “denarius” is the origin of the Polari word “dinarly”, meaning “money”. If I get time I must generate a Polari version of this manuscript.

Weekly Update from the Open Journal of Astrophysics – 01/11/2025

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , , , , , , , , on November 1, 2025 by telescoper

It’s time once again for the usual Saturday update of the week’s new papers at the Open Journal of Astrophysics (although a bit later in the day than usual). Since the last update we have published another two papers, which brings the number in Volume 8 (2025) up to 163, and the total so far published by OJAp up to 398.

The first paper this week is “Instability and vertical eccentricity variation in global hydrodynamic disk simulations” by Janosz W Dewberry (U. Mass. Amherst, USA), Henrik N. Latter and Gordon I. Ogilvie (U. Cambridge, UK) and Sebastien Fromang (U. Paris Saclay, France). This article was published in the folder Solar and Stellar Astrophysics on Tuesday 28th October 2025; it discusses the instabilities and eccentricity variations generated in numerical hydrodynamic simulations of accretion disks.

The overlay is here:

You can find the officially accepted version on arXiv here.

The Fediverse announcement is here:

Open Journal of Astrophysics

New Publication at the Open Journal of Astrophysics: "Instability and vertical eccentricity variation in global hydrodynamic disk simulations" by Janosz W Dewberry (U. Mass. Amherst, USA), Henrik N Latter and Gordon I Ogilvie (U. Cambridge, UK) & Sebastien Fromang (U. Paris Saclay, France)

doi.org/10.33232/001c.146332

October 28, 2025, 9:43 am 2 boosts 0 favorites

The second (and last) paper of the week is “Fast X-ray Transient Detection with AXIS: application to Magnetar Giant Flares” by Michela Negro (Louisiana State University, USA) and 8 others based in the USA and Canada. This one was also published on Tuesday 28th October, but in the folder High-Energy Astrophysical Phenomena. It presents a feasibility study of detecting Magnetar Giant Flares with the Advanced X-ray Imaging Satellite (AXIS). The overlay is here:

You can find the official version of this one on arXiv here. The announcement on Mastodon is here:

Open Journal of Astrophysics

New Publication at the Open Journal of Astrophysics: "Fast X-ray Transient Detection with AXIS: application to Magnetar Giant Flares" by Michela Negro (Louisiana State University, USA) and 8 others based in the USA and Canada

doi.org/10.33232/001c.146360

October 28, 2025, 10:02 am 1 boosts 1 favorites

It being a relatively slow week we didn’t reach the 400 mark as I thought we might, but we will probably get there next week. After 10 months of the year 2025, in which we have published 163 papers, a rough projection for the 2025 total is 195. We do have some extra papers up our sleeve, however, so we might well reach 200 for the year. We will find out soon enough!