- Aryabhatta Research Institute of Observational SciencesIN1 paper
- Centre for Theoretical Physics and AstrophysicsUZ1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Cukurova UniversityTR1 paper
- Max Planck Institute for AstrophysicsDE1 paper
- National Observatory of AthensGR1 paper
- Netherlands Institute for Radio AstronomyNL1 paper
- Observatoire de ParisFR1 paper
- The University of QueenslandAU1 paper
- University of PisaIT1 paper
3 papers
astro-ph.SR2026
Multivariate Statistical Analysis of Low Mass Ratio Contact Binaries: Definition, Dynamical Stability, and Parameter Relationships
A. Poro, R. Poggiani, A. Foroutanfar +3
This study explores multiple aspects of W Ursae Majoris (W UMa) contact binary systems with low mass ratios, providing empirical insights into their definition, structure, rotation…
astro-ph.HE2026
A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2
Sinan Allak, Lorenzo Ducci, Valery F. Suleimanov +6
In this Letter, we report the detection of an absorption-like feature at ~1.89 keV in Chandra/ACIS spectra of the ultraluminous X-ray source NGC 4861 X-2, based on the deepest obse…
astro-ph.SR2026
IZ Tel and UW Vir: Southern oscillating eclipsing Algol systems with active mass transfer
Alexios Liakos, David J. W. Moriarty, Julian F. West +1
This study is an in-depth examination of IZ Tel and UW Vir which are semi-detached oscillating Eclipsing Algol binary systems (oEA stars). The radial velocities of both components…