364 papers
By combining Gaia astrometry and Gaia-ESO Survey radial velocities for 430 members, this study determines the 3D rotation of the open cluster NGC 2516, revealing a median rotational velocity of 0.12 km/s at a 74-degree angle to the galactic plane that contradicts expected dependencies on cluster age and mass.
The paper introduces AstroInspect, a web-based system designed to streamline the organization, assessment, and visual inspection of astronomical objects by integrating real-time data from multiple surveys into a single intuitive interface, as demonstrated by its successful application in identifying H emission-line galaxies in the Hydra I cluster.
Through numerical simulations and radiative transfer modeling, this study suggests that the asymmetric shoulder features observed in the dust-continuum emission of the Class 0 protostar IRAS 16544-1604 in CB 68 are likely caused by gravitational instability in a massive disk, even though the resulting spiral structures are too small to be directly resolved by current eDisk observations.
This paper proposes that if massive primordial black holes constitute a fraction of dark matter, they can act as high-density seeds to dramatically accelerate galaxy formation within 100 Myr and potentially explain the existence of low surface brightness galaxies as residues of failed accretion.
By analyzing 69 globular clusters with a hierarchical framework that explicitly accounts for multiple stellar populations, this study confirms that such complexity has a negligible impact on age estimates, yielding a robust, model-independent age for the Universe of $13.81 \pm 0.32$ Gyr.
This study presents a Euclid follow-up of a galaxy cluster candidate, revealing an overdense population of blue galaxies and a merging proto-Brightest Cluster Galaxy that illustrates a common multi-object merger formation process, suggesting Euclid will discover approximately 400 such assembling systems by the end of its mission.
Using the FirstLight simulations and synthetic JWST images, this study reveals that galaxy sizes at cosmic dawn ( to ) evolve rapidly due to increasing galaxy efficiency and complex dust attenuation effects, establishing a diverse size-mass relation early on where compact galaxies exhibit higher specific star-formation rates.
This paper presents preliminary results from an ALMA-based study characterizing the physical conditions and chemical evolution of hot molecular cores through the analysis of rotational temperatures, column densities, and molecular abundances of key species, while also comparing observational data with Nautilus chemical simulations.
This work-in-progress study utilizes ALMA archival data to analyze the chemical and physical properties of 37 molecular cores in early evolutionary stages, revealing positive correlations between the abundances of HCN and HNC and regional temperature, while finding no such correlation for HCN.
This study characterizes the stellar content and star formation activity in the IRAS 18456-0223 region by identifying 89 young stellar objects with masses up to 7.2 solar masses and ages up to 4 Myr, analyzing their clustering properties, variability, and association with cold, dense filaments using multiwavelength data and spectroscopy.
This study employs unsupervised machine learning clustering on multiwavelength data from the GAMA, EMU, and WISE surveys to quantify the fractional contributions of star formation and active galactic nuclei to galaxy energy budgets, ultimately establishing a novel, highly reliable three-dimensional IR-radio diagnostic scheme that moves beyond binary classifications to characterize galaxies as composites of multiple emission processes.
This paper introduces a unified integral framework based on the continuity equation that generalizes the Tremaine-Weinberg method to measure local pattern speeds, demonstrating through TNG50 simulations that it robustly recovers both global and radially varying rotation profiles while distinguishing between bars and spirals without relying on rigid geometric approximations.
This paper presents the first release of the ULTIMATE-deblending project, a comprehensive 50-band UV-to-MIR photometric catalog for the JWST/PRIMER survey that integrates space- and ground-based data to significantly improve the accuracy of photometric redshifts and enable mass-complete studies of early-universe galaxy formation.
This study analyzes four years of millimetre variability data from the GASTON-GP survey of massive protostellar objects and reports no robust detections of variable protostars, a null result attributed to observational limitations and the absence of extreme luminosity bursts during the monitoring period.
By analyzing radio observations of 11 tidal disruption event hosts, this study introduces a new methodology that reveals quiescent galaxies possess sub-parsec circumnuclear density profiles consistent with simple Bondi accretion flows, thereby enabling the first direct constraints on gas distributions and accretion rates within the Bondi spheres of previously quiescent supermassive black holes.
This study reports a surprising, verified reversal in the expected trend of electron temperature within metal-rich star-forming regions, where temperatures unexpectedly increase at high metallicities, a phenomenon that challenges the fundamental principles of the direct method for metallicity measurement.
Using the FAST telescope, this study of 147 nearby low-power radio sources reveals a HI absorption detection rate dominated by rotating gas disks, while identifying a correlation between radio power and outflow-driven kinematics that differs from patterns observed in higher-power sources.
Using deep JWST data, researchers discovered 36 massive ancient globular cluster candidates within the high-redshift quiescent galaxy "The Relic," providing direct evidence for both early in-situ formation and subsequent accretion events that link high-z cluster populations to local stellar systems.
Using SDSS DR18 data, this study demonstrates that while environmental quenching dominates in low-mass galaxies across the cosmic web, massive galaxies () exhibit divergent evolutionary pathways where those in low-density sheets retain gas and star formation unlike their quenched, morphologically transformed cluster counterparts, highlighting the cosmic web as an active driver of galaxy evolution beyond simple mass dependence.
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.