We investigate the reliability of the symbiotic star class in the general variability classification of Gaia Data Release 3 (DR3) and search for new genuine symbiotic systems among the objects assigned to this category. The sample contains 649 sources, including 246 previously known symbiotic stars, 61 literature candidates, and 339 new candidates

Quiescent black hole low-mass X-ray binaries provide a key setting for probing accretion physics at low luminosities. A0620--00, the archetypal system in this class, has remained in X-ray quiescence for decades and exhibits complex optical variability, yet the long-term behaviour of its accretion flow remains poorly understood. Here, we report an

We present the largest study to date of star cluster mass and age distributions in nearby galaxies. The analysis is based on a uniformly selected catalog of over 15,000 (36,000) human- (machine-) classified compact clusters across 38 spiral galaxies in the PHANGS-Hubble Space Telescope survey, with improved photometric SED age dating that mitigates

Context. The importance of massive stars cannot be overstated: they are powerful probes of the early universe, they play a vital role in the chemical and mechanical evolution of their host environments, and their end products allow us to study the most extreme physics in the universe. Obtaining accurate stellar and surface parameters for large

Polarized synchrotron emission from ultra-relativistic electrons spiraling the Galactic magnetic field has recently become one of the most relevant emissions in the interstellar medium because the quality of low-frequency observations has improved. One recent experiment designed to explore this emission is QUIJOTE. We study the spatial variations

We examine the spatial correlation of emission from polycyclic aromatic hydrocarbons (PAH) (3.3, 7.7, and 11.3 $\mathrm{\mu m}$) with the far-ultraviolet (FUV), near-ultraviolet (NUV), and H $\alpha$ emission from star-forming complexes (SFCs) in different regions of NGC 628. We use the James Webb Space Telescope to detect PAH emission, along with