International Journal of Universe

International Journal of Universe is a peer-reviewed Online journal launched in 2025, dedicated to the study of the universe and its components, including galaxies, stars, planets, black holes, dark matter, and cosmic microwave background radiation. The journal aims to publish original research articles, review articles, and letters in all areas of astrophysics, cosmology, and related fields. The International Journal of Universe welcomes contributions from researchers all over the world and encourages interdisciplinary research. The journal is committed to publishing high-quality research papers, reviews, and letters that advance our understanding of the universe and its components.

The journal welcomes contributions across the following topic areas:

• Observational & Theoretical Astrophysics: stellar physics and stellar evolution, star formation and stellar populations, variable stars and pulsars, spectroscopy and photometry, radiative transfer and radiative processes, the interstellar medium and dust, galactic structure and dynamics, high-energy astrophysics and energetic phenomena, accretion processes and accretion disks, relativistic jets and outflows, transient events and time-domain astronomy, telescope instrumentation and observational techniques, data reduction and analysis methodology, and observational validation of theoretical models
• Cosmology & Large-Scale Structure: big bang nucleosynthesis and the early universe, cosmic microwave background radiation and anisotropies, inflation theory and inflationary models, dark matter and dark energy, baryogenesis and matter-antimatter asymmetry, large-scale structure and the cosmic web, galaxy clusters and voids, cosmic evolution and structure formation, reionization and the epoch of reionization, cosmological parameters and measurements, observational cosmology and surveys, and evidence-based cosmological models
• Exoplanets & Planetary Systems: exoplanet detection methods and techniques, transit photometry and radial velocity, direct imaging and adaptive optics, gravitational microlensing, astrometry and positional measurements, planetary system architectures and dynamics, hot Jupiters and super-Earths, planetary formation and migration, orbital evolution and dynamics, planetary atmospheres and characterization, habitable zones and planetary habitability, biosignatures and habitability assessment, space missions and surveys, and exoplanet data analysis
• Gravitational Waves & Compact Objects: general relativity and gravitational physics, gravitational wave detection and measurement, gravitational wave sources and mechanisms, black holes and black hole physics, neutron stars and equation of state, binary systems and compact object mergers, LIGO, Virgo, and KAGRA detectors, gravitational wave signal processing and analysis, waveform modeling and template banks, gravitational wave astrophysics and astronomy, multi-messenger observations and coordination, strong-field gravity tests, and gravitational wave cosmology
• High-Energy Astrophysics: black holes and active galactic nuclei, neutron stars and magnetars, X-ray binaries and accretion systems, gamma-ray bursts and transients, cosmic rays and particle acceleration, high-energy particles and cosmic rays, supernova remnants and shocks, particle acceleration mechanisms, synchrotron radiation and high-energy processes, inverse Compton scattering, Compton dominance, X-ray and gamma-ray telescopes, neutrino telescopes and detection, high-energy instrumentation and missions, high-energy data analysis and modeling, and multi-wavelength astrophysics
• Gravitational Physics & Relativistic Phenomena: general relativity and gravitational theory, strong-field gravity and tests, gravitational lensing and light deflection, Einstein rings and multiple imaging, weak gravitational lensing, cosmological lensing and structure, black hole spacetimes and metrics, relativistic accretion and jets, neutron star interiors and matter, equation of state physics, relativistic fluid dynamics, and numerical relativity and simulations
• Galaxy Formation & Evolution: galaxy formation mechanisms and models, hierarchical assembly and mergers, star formation in galaxies, stellar populations and age estimation, chemical evolution and enrichment, morphological transformation and classification, active galaxies and feedback, supermassive black holes and nuclei, galaxy interactions and dynamics, observational surveys and catalogs, and simulations and computational modeling
• Stellar Physics & Nucleosynthesis: stellar structure and evolution, main sequence stars and post-main sequence evolution, white dwarfs and neutron stars, stellar atmospheres and spectroscopy, convection and energy transport, nuclear burning and fusion processes, primordial nucleosynthesis, stellar nucleosynthesis and production, supernovae and explosive nucleosynthesis, and abundance patterns and chemical evolution
• Observational Astronomy & Instrumentation: telescopes and observatories, detector technologies and sensors, spectroscopy and spectrographs, imaging and photometry, adaptive optics and wavefront sensing, interferometry and aperture synthesis, photometric redshifts and estimation, spectroscopic surveys and redshift measurement, time-domain and transient searches, and data archives and accessibility