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Open Journal of Astrophysics
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The Open Journal of Astrophysics is a peer-reviewed Diamond Open-Access Astrophysics journal using an arXiv overlay. This community-run service is provided entirely […]

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oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "A Cosmic Miracle: A Remarkably Luminous Galaxy at $z_{\rm spec} = 14.44$ Confirmed with JWST" by Rohan Naidu (MIT Kavli Institute) and 45 others.

https://doi.org/10.33232/001c.156033
A Cosmic Miracle: A Remarkably Luminous Galaxy at z<sub>spec</sub> = 14.44 Confirmed with JWST | Published in The Open Journal of Astrophysics
By Rohan P. Naidu, Pascal A. Oesch & 44 more. The James Webb Space Telescope (JWST) has discovered a bright galaxy, MoM-z14, located 280 million years post-Big Bang, challenging previous models and suggesting a rising star-formation history.
astro.theoj.org
January 30, 2026 at 7:20 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "The Atacama Cosmology Telescope: DR6 Sunyaev-Zel’dovich Selected Galaxy Clusters Catalog" by M. Aguena et al. (102 authors altogether), on behalf of the ACT-DES-HSC Collaboration

https://doi.org/10.33232/001c.155863
The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog | Published in The Open Journal of Astrophysics
By M. Aguena, S. Aiola & 99 more. This study reports on the discovery of 10,040 galaxy clusters in the Atacama Cosmology Telescope data, including 1,180 clusters at high redshifts, using the Sunyaev-Zel'dovich effect.
astro.theoj.org
January 27, 2026 at 9:55 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "DIPLODOCUS I: Framework for the evaluation of relativistic transport equations with continuous forcing and discrete particle interactions" by Christopher N Everett & Garret Cotter (University of Oxford, UK)

https://doi.org/10.33232/001c.155822
DIPLODOCUS I: Framework for the evaluation of relativistic transport equations with continuous forcing and discrete particle interactions | Published in The Open Journal of Astrophysics
By Christopher N Everett, Garret Cotter. DIPLODOCUS is a new framework for mesoscopic modelling of astrophysical systems, using an integral formulation of relativistic transport equations and a discretisation procedure for particle distributions.
astro.theoj.org
January 27, 2026 at 8:49 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect" by Lucijana Stanic (University of Zurich, Switzerland) and 13 others based in Zurich, Lausanne and Geneva.

https://doi.org/10.33232/001c.155802
Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect | Published in The Open Journal of Astrophysics
By Lucijana Stanic, Ivan Cardea & 12 more. This research demonstrates that intensity interferometry can reveal internal stellar kinematics, providing a new way to observe stellar dynamics with high time resolution.
astro.theoj.org
January 26, 2026 at 11:47 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "The Kinematic Properties of TŻO Candidate HV 11417 with Gaia DR3" by Anna J. G. O'Grady (Carnegie Mellon University, USA)

https://doi.org/10.33232/001c.155625
January 21, 2026 at 9:56 AM
oj-astro.fediscience.org.ap.brid.gy
New Publicationn at the Open Journal of Astrophysics: "Angular bispectrum of matter number counts in cosmic structures" by Thomas Montandon (U. Montpellier, France), Enea Di Dio (U. Genève, Switzerland), Cornelius Rampf (Ruđer Bošković Institute, Croatia) and Julian Adamek (U. Zürich […]
Original post on fediscience.org
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January 21, 2026 at 9:38 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics; "The Properties of Little Red Dot Galaxies in the ASTRID Simulation" by Patrick LaChance, Rupert A. C. Croft, Tiziana Di Matteo & Yihao Zhou (Carnegie Mellon U.), Fabio Pacucci (Harvard-Smithsonian CfA), Yueying Ni (Y. Michigan Ann Arbor) […]
Original post on fediscience.org
fediscience.org
January 19, 2026 at 10:35 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Detectability of dark matter subhalo impacts in Milky Way stellar streams" by Junyang Lu , Tongyan Lin & Mukul Sholapurkar (UCSD, USA) and Ana Bonaca (Carnegie Observatories, USA)

https://doi.org/10.33232/001c.155386
Detectability of dark matter subhalo impacts in Milky Way stellar streams | Published in The Open Journal of Astrophysics
By Junyang Lu, Tongyan Lin & 2 more. The study develops a method to estimate the minimum detectable dark matter subhalo mass in stellar streams, ranking them by sensitivity and identifying promising lines for further research.
astro.theoj.org
January 16, 2026 at 9:34 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Universal numerical convergence criteria for subhalo tidal evolution" by Barry T. Chiang & Frank C. van den Bosch (Yale U., USA) and Hsi-Yu Schive (National Taiwan University, Taiwan)

https://doi.org/10.33232/001c.155367
Universal numerical convergence criteria for subhalo tidal evolution | Published in The Open Journal of Astrophysics
By Barry T. Chiang, Frank C. van den Bosch & 1 more. Analysis of simulation suite that addresses the 'overmerging' problem in cosmological simulations of dark matter subhalos, showing that up to 50% of halos in state-of-the art simulations are unresolved.
astro.theoj.org
January 15, 2026 at 9:14 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Constraints from CMB lensing tomography with projected bispectra" by Lea Harscouet & David Alonso (U. Oxford, UK), Andrina Nicola (U. Manchester, UK) and Anže Slosar (Brookhaven National Laboratory, USA)

https://doi.org/10.33232/001c.155341
January 14, 2026 at 2:13 PM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Accelerated calibration of semi-analytic galaxy formation models" by Andrew Robertson and Andrew Benson (Carnegie Observatories, USA)

https://doi.org/10.33232/001c.155306
Accelerated calibration of semi-analytic galaxy formation models | Published in The Open Journal of Astrophysics
By Andrew Robertson, Andrew Benson. A faster calibration framework for galaxy formation models, using fewer simulations for each evaluation. However, the model shows discrepancies suggesting the model needs to be made more flexible.
astro.theoj.org
January 13, 2026 at 9:46 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "On the origins of oxygen: ALMA and JWST characterise the multi-phase, metal-enriched, star-bursting medium within a ‘normal’ z>11 galaxy"
by Joris Witstok (Cosmic Dawn Centre, Copenhagen, Denmark) and 37 others dotted around the world […]
Original post on fediscience.org
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January 12, 2026 at 10:32 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "DESI Data Release 1: Stellar Catalogue" by Sergey Koposov (U. Edinburgh, UK) and an international cast of 66 other authors.

https://doi.org/10.33232/001c.155260
DESI Data Release 1: Stellar Catalogue | Published in The Open Journal of Astrophysics
By Sergey Koposov, Ting S. Li & 66 more. This paper introduces and describes the stellar Value-Added Catalogue (VAC) based on DESI Data Release 1, providing measurements for over 4 million stars, including radial velocity, abundance, and stellar parameters.
astro.theoj.org
January 12, 2026 at 10:11 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Rotational Kinematics in the Globular Cluster System of M31: Insights from Bayesian Inference" by
Yuan (Cher) Li & Brendon J. Brewer (U. Auckland, New Zealand), Geraint F. Lewis (U. Sydney, Australia) and Dougal Mackey […]
Original post on fediscience.org
fediscience.org
January 12, 2026 at 9:56 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Distance measurements from the internal dynamics of globular clusters: Application to the Sombrero galaxy (M 104)" by Katja Fahrion (University of Vienna, Austria) and 9 others based in Spain, Australia, UK, USA, Brazil, Germany and […]
Original post on fediscience.org
fediscience.org
January 9, 2026 at 9:30 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Constraining the Stellar-to-Halo Mass Relation with Galaxy Clustering and Weak Lensing from DES Year 3 Data" by G. Zacharegkas et al. (Argonne National Laboratory, USA) and 98 others based in numerous countries […]
Original post on fediscience.org
fediscience.org
January 8, 2026 at 10:23 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Going beyond $S_{8}$: fast inference of the matter power spectrum from weak-lensing surveys" by Cyrille Doux (Université Grenoble Alpes, France) and Tanvi Karwal (U. Chicago, USA)

https://doi.org/10.33232/001c.155045
Going beyond $S_8$: fast inference of the matter power spectrum from weak-lensing surveys | Published in The Open Journal of Astrophysics
By Cyrille Doux, Tanvi Karwal. A new framework to extract the scale-dependent matter power spectrum from cosmic shear and CMB lensing measurements, revealing a consistent suppression in the matter power spectrum in galaxy-lensing
astro.theoj.org
January 7, 2026 at 9:37 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "A targeted, parallax-based search for Planet Nine" by Hector Socas-Navarro and Ignacio Trujillo (Instituto de Astrofísica de Canaria, Spain)

https://doi.org/10.33232/001c.155004
A targeted, parallax-based search for Planet Nine | Published in The Open Journal of Astrophysics
By Hector Socas-Navarro, Ignacio Trujillo. A targeted search for the hypothesized Planet Nine in the outer solar system, using parallax position shifts. No credible candidates were found within the observed field.
astro.theoj.org
January 6, 2026 at 7:53 AM
oj-astro.fediscience.org.ap.brid.gy
The two papers published this morning bring Vol. 8 (2025) to a close. We have published 213 papers this year (201 in the regular issue and 12 in a supplement).

This brings this year's publishing activity to a close. Thank you for your support and we'll see you in 2026 with Vol. 9!
December 24, 2025 at 9:33 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Quantifying the Fermi paradox via passive SETI: a general framework" by Matthew Civiletti (City University of New York, USA)

https://doi.org/10.33232/001c.154771
Quantifying the Fermi paradox via passive SETI: a general framework | Published in The Open Journal of Astrophysics
By Matthew Civiletti. This study uses SETI observations and the Drake equation to calculate the probability of detecting at least one extraterrestrial signal, highlighting the model's limitations and potential improvements.
astro.theoj.org
December 24, 2025 at 9:27 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "The explosion jets of the core-collapse supernova remnant Circinus X-1" by Noam Soker and Muhammad Akashi (Technion, Haifa, Israel)

https://doi.org/10.33232/001c.154770
The explosion jets of the core-collapse supernova remnant Circinus X-1 | Published in The Open Journal of Astrophysics
By Noam Soker, Muhammad Akashi. The study suggests that the rings in the Circinus X-1 supernova remnant resulted from jet-driven explosions, supporting the jittering-jets explosion mechanism theory for core collapse supernovae.
astro.theoj.org
December 24, 2025 at 9:18 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "On the statistical convergence of N-body simulations of the Solar System" by Hanno Rein, Garett Brown and Mei Kanda (U. Toronto, Canada)

https://doi.org/10.33232/001c.154745
On the statistical convergence of N-body simulations of the Solar System | Published in The Open Journal of Astrophysics
By Hanno Rein, Garett Brown & 1 more. This study presents numerical experiments to determine the minimum timestep for long-term simulations of the Solar System, finding that timesteps up to 32 days yield physical results.
astro.theoj.org
December 23, 2025 at 9:56 AM
oj-astro.fediscience.org.ap.brid.gy
New Publication at the Open Journal of Astrophysics: "Transverse Velocities in Real-Time Cosmology: Position Drift in Relativistic N-Body Simulations" by Alexander Oestreicher (University of Southern Denmark), Chris Clarkson (QMUL, UK), Julian Adamek (Universität Zürich, CH) and Sofie Marie […]
Original post on fediscience.org
fediscience.org
December 23, 2025 at 9:33 AM
Reposted by Open Journal of Astrophysics
oj-astro.fediscience.org.ap.brid.gy
We are pleased to announce the publication today (19th December) of a special issue consisting of a series of papers about various aspects of Pulsar Science with the Square Kilometre Array Observatory.

Links to the individual papers follow in a thread....

https://astro.theoj.org/issue/13006
Vol. 8 Supplement, Issue 1, 2025 | Published by The Open Journal of Astrophysics
Highlights of the expected outcomes from the upcoming SKA Observatory with game-changing large instantaneous sensitivity, wide frequency coverage and flexible observation modes
astro.theoj.org
December 19, 2025 at 11:26 AM
oj-astro.fediscience.org.ap.brid.gy
There was an error in the previous version of this one, now fixed.

https://astro.theoj.org/article/154653-understanding-the-neutron-star-population-with-the-skao-telescopes
December 19, 2025 at 7:30 PM