The Astrophysical Journal

From Nonparametric Distance Reconstruction to Testing the Etherington Relation and Cosmic Curvature Using 2D and 3D BAO Measurements

Pub Date : 2026-02-09 DOI: 10.3847/1538-4357/ae3a90 Darshan Kumar, Jie Zheng, Zhi-Qiang You and Da-Chun Qiang

Semianalytic Orbits: A Practical Implementation of Lynden-Bell’s Planar Orbits and Extension to Vertical Oscillations

Pub Date : 2026-02-09 DOI: 10.3847/1538-4357/ae1a43 John C. Forbes, Michele T. Bannister, Angus Forrest, Ian DSouza and Jack Patterson

On the Deepest Search for Galactic Center Pulsars and an Examination of an Intriguing Millisecond Pulsar Candidate

Pub Date : 2026-02-09 DOI: 10.3847/1538-4357/ae336c Karen I. Perez, Vishal Gajjar, Slavko Bogdanov, Jules P. Halpern, Paul B. Demorest, Steve Croft, Matt Lebofsky, David H. E. MacMahon and Andrew P. V. Siemion