https://astro.theoj.org/ The Open Journal of Astrophysics is an arXiv overlay journal providing open access to peer-reviewed research in astrophysics and cosmology. en Wed, 09 Sep 2026 03:25:00 -0500 RUBIES-EGS-9809, a dust-reddened galaxy with a dominant point-source component, suggests that AGN feedback may influence its host., indicating that massive galaxies can host evolved stellar populations during their dust-obscured phase. https://doi.org/10.33232/001c.170057 https://astro.theoj.org/article/170057-a-dusty-quenching-candidate-agn-host-at-z-5-7-massive-quiescent-galaxies-may-quench-already-during-the-dust-obscured-phase Mon, 07 Sep 2026 02:51:00 -0500 This study analyzes the velocity kick of neutron stars, finding that 23% belong to the low-velocity mode. Differences in magnetic field distribution emerge, but no significant bimodality in physical parameters. https://doi.org/10.33232/001c.169866 https://astro.theoj.org/article/169866-dependences-of-radio-pulsar-parameters-on-the-kick-velocity Mon, 07 Sep 2026 02:37:00 -0500 The study proposes using color phase curves to detect and characterize the atmospheres of rocky exoplanets, including non-transiting ones, by observing their longitudinal heat transfer. https://doi.org/10.33232/001c.169865 https://astro.theoj.org/article/169865-the-third-option-color-phase-curves-to-characterize-the-atmospheres-of-temperate-rocky-exoplanets Mon, 07 Sep 2026 02:22:00 -0500 How the distribution function of a galaxy, not just its central density gradient, influences the efficiency and direction of dynamical friction, affecting the movement of massive objects within it. https://doi.org/10.33232/001c.169864 https://astro.theoj.org/article/169864-not-all-cores-are-equal-phase-space-origins-of-dynamical-friction-stalling-and-buoyancy Thu, 03 Sep 2026 07:55:00 -0500 The paper "DESI Data Release 1: Stellar Catalogue" by Koposov et al. contained a Figure that was incorrect. This has now been corrected. https://doi.org/10.33232/001c.169445 https://astro.theoj.org/article/169445-correction-desi-data-release-1-stellar-catalogue Thu, 03 Sep 2026 02:28:00 -0500 The study reviews the properties of local narrow-line Seyfert 1 galaxies and compares them with high-redshift active galactic nuclei, aiding understanding of early black hole evolution. https://doi.org/10.33232/001c.169444 https://astro.theoj.org/article/169444-how-similar-are-narrow-line-seyfert-1-galaxies-and-high-z-type-1-agn Wed, 02 Sep 2026 02:01:00 -0500 The study re-analyzes images of potential failed supernova N6946-BH1, finding four unrelated near-infrared neighbors. It also compares the luminosity of failed supernova remnants to stellar merger remnants, noting significant differences. https://doi.org/10.33232/001c.169299 https://astro.theoj.org/article/169299-the-neighboring-stars-of-n6946-bh1-and-the-observational-characteristics-of-failed-supernovae Tue, 01 Sep 2026 02:34:00 -0500 The first data release of the Spectroscopic Classification of Astronomical Transients survey includes 1812 spectra of 1331 transients, offering valuable insights for photometric/light curve classification pipelines. https://doi.org/10.33232/001c.169213 https://astro.theoj.org/article/169213-scat-data-release-1-1812-optical-spectra-of-1331-transients Mon, 31 Aug 2026 01:50:00 -0500 A modification of the planetary interior solver MAGRATHEA to include Carbon-based mantles to enable it to understand more fully the range of possible planet structures. https://doi.org/10.33232/001c.169008 https://astro.theoj.org/article/169008-modeling-carbon-based-planets-with-magrathea Fri, 28 Aug 2026 01:52:00 -0500 The study explores the impact of non-Gaussian line spread function (LSF) profiles on stellar kinematics recovery. A method was developed to reduce bias in dispersion, with a Python implementation available. https://doi.org/10.33232/001c.168763 https://astro.theoj.org/article/168763-the-impact-of-non-gaussian-line-spread-functions-on-stellar-kinematic-recovery-consequences-for-dynamical-models