365 papers
This paper reports the confirmation of two new lensed quasars and the identification of 12 likely lensed quasars and eight new lensed galaxies by cross-matching 1,724 candidates from imaging surveys with DESI DR1 and P200 spectroscopy, demonstrating the efficiency of wide-field spectroscopic surveys in validating strong lens systems.
This paper presents the CURLING pipeline, a three-stage catalog-based method applied to the CatNorth database that identifies 333 new wide-separation gravitationally lensed quasar candidates and 29 confirmed dual quasars to significantly expand the sample for studying dark matter halos and quasar host galaxies.
By analyzing Gaia data for 32 clusters, this study reveals that the Scorpius-Centaurus OB association has undergone a structured, inside-out expansion driven by stellar feedback, characterized by stepwise increases in velocity dispersion correlated with sequential star formation bursts over the past 20 million years.
This paper presents MOLLId, an automated software tool for identifying spectral molecular lines in sub-millimeter and millimeter bands, which was successfully applied to analyze protostellar spectra in the RCW 120 region to identify hundreds of lines and derive physical parameters for a two-component structure.
Using JWST spectroscopy, this study characterizes extreme emission line galaxies at as compact, low-mass systems with intense star formation bursts that likely contribute 16–40% of the ionizing photons required for cosmic reionization.
The JWST EXCELS Survey analyzes gas-phase metallicity in 65 star-forming galaxies at redshifts 2 to 8, revealing that low-mass, high star-formation rate galaxies deviate from the local Fundamental Metallicity Relationship due to rapid chemical enrichment and distinct physical conditions at early cosmic epochs.
This study analyzes multiwavelength variability and spectral energy distributions of BL Lacertae from 2020 to 2024, revealing intraday spectral hysteresis, a significant 370-day radio lag indicating spatially distinct emission regions, and a spectral evolution from intermediate to low synchrotron-peaked states.
This study reveals that the nuclear star cluster in the massive, star-forming spiral galaxy M 74 is an ancient, metal-poor fossil that has evolved passively for approximately 8 billion years without further growth, contrasting sharply with the younger, metal-rich stellar populations of its surrounding host galaxy.
This paper presents a new catalog of 4,110 galaxy-galaxy gravitational lens candidates, including 3,887 new discoveries, identified by detecting background [O II] emission lines in DESI spectra of foreground luminous red galaxies, which will serve as a valuable dataset for measuring dark matter substructure and enabling time-delay cosmography.
This paper presents the identification and redshift determination of approximately 3,500 bright quasars from the Euclid Quick Data Release using slitless NISP spectroscopy, resulting in a new homogeneous catalogue, the first Euclid quasar composite spectrum, and an analysis of host galaxy morphologies and AGN selection techniques.
This study presents new VLBA astrometry for 11 radio stars, achieving high-precision positions, parallaxes, and proper motions that significantly improve the alignment between the radio-based ICRF and the optical Gaia-CRF at the bright end.
The AIDA-TNG project utilizes cosmological simulations to demonstrate that alternative dark matter models, specifically warm and self-interacting variants, significantly alter halo abundance, radial distribution, and clustering properties, with small-scale clustering emerging as a key discriminator for future observational comparisons.
This study reports the rare detection of a massive, high-redshift neutral hydrogen outflow driven by jet-gas interaction 47 kpc beyond the host galaxy of the radio galaxy 0731+438, providing new insights into the synergistic feedback mechanisms between AGN jets and radiation at cosmic noon.
This study analyzes resolved H maps of 685 galaxies around the Virgo cluster to characterize star-forming clumps, revealing that clump counts follow a fractal power-law relation with distance and finding that filament galaxies exhibit a slightly higher number of peripheral clumps compared to non-filament galaxies, though no conclusive differences in clump size distributions were detected.
This study utilizes multi-wavelength data from JWST, ALMA, and Gemini to reveal that the intermediate-mass black hole in the dwarf Seyfert galaxy NGC 4395 drives a stratified, biconical outflow where cold molecular gas dominates the mass loss and kinetic impact on the ISM, while higher ionisation gas is accelerated more efficiently closer to the AGN.
This paper presents the ACES V data release, featuring high-resolution ALMA observations of CS, SO, CH3CHO, HC3N, and H40a lines across the Central Molecular Zone to enable detailed studies of gas dynamics, chemical variations, and star formation in the Galactic center.
Using deep JWST imaging, researchers detected and characterized mature intracluster light in the distant galaxy cluster XLSSC 122 at z ~ 2, revealing that the buildup of intracluster stars was already well underway by this epoch and providing new insights into the early dynamical evolution of massive halos.
By analyzing kinematic asymmetries in approximately 6,700 MaNGA galaxies, this study reveals that environmental quenching in satellites is primarily driven by rapid gas stripping and subsequent starvation leading to compact, undisturbed structures, whereas central galaxies are quenched through internal AGN feedback and merger-driven growth.
By combining cosmological simulations with JWST mock observations, this study reveals that while galaxy mergers significantly trigger AGN activity in gas-poor environments, their observational detection via morphological signatures is hindered at higher redshifts, underscoring the necessity of integrating realistic simulations with observational data to fully understand the AGN-merger connection.
This study utilizes end-to-end simulations of CHEX-MATE-like galaxy clusters to demonstrate that while current X-ray analysis techniques can robustly recover gas density and mass profiles, they face significant challenges and potential biases in accurately measuring temperature profiles due to azimuthal variations and multi-temperature gas along the line of sight.