Eight low-redshift Little Red Dots identified in DESI DR1 exhibit broad Balmer lines, steep decrements, compact shapes, and negligible variability, with a number density roughly 10,000 times lower than at z>4.
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representative citing papers
Spatially and spectrally resolved HCN/HCO+ ratios in 18 nearby ULIRGs show outflow or AGN signatures in 16 galaxies, classified into spherical-shell, spectrally-distinct-compact, and filled geometries.
A catalog of 7918 blazars and candidates with nightly optical light curves, quantified variability, and Bayesian blocks-derived flaring periods from three all-sky surveys.
VAR-PZ uses DRW-modeled variability to create photo-z priors that reduce catastrophic outliers in AGN redshift estimates from 32% to below 7% when combined with SED fitting, validated on SDSS data and LSST simulations.
High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.
Photometric study identifies 137 PMS stars with median accretion rate 8.0×10^{-9} M⊙/yr in the NGC 346 periphery, showing correlation between accretion properties and distance to hot massive stars.
Low-energy PISNe from 140 solar-mass Pop III stars produce second-generation stars at median [Fe/H] ~ -5.5 with odd-even patterns, but their absence from EMP observations disfavors PISNe as the main early enrichment channel.
Four models for super-early galaxy formation predict similar galaxy bias around 7 for faint galaxies but diverge at brighter luminosities, with the primordial black hole model showing nearly constant bias while others increase to 14.
The ROXs 12 system shows 12CO/13CO ratios of 77 and 55 in the star and companion, with a C/O ratio of 0.54 in the companion.
Simulations find that tidal dwarf galaxies form and persist in galaxy clusters under moderate stellar feedback across all relevant viscosities, supporting their identification as stripped remnants matching multiple observed dwarf galaxy classes.
Large N-body galaxy simulations reveal high chaos with Lyapunov times that extrapolate to Milky Way galaxies being chaotic on timescales ≲ 0.1 Myr.
Void galaxies show modestly higher star formation rates in early spirals and outer disks, lower extinction, and higher gas-fraction proxies than matched galaxies in filaments and walls, suggesting slower quenching in underdense environments.
Simulations from JWST data show GREX-PLUS confusion makes images shallower than JWST but depth improves without plateauing at planned survey limits, with completeness corrections allowing number counts to match JWST results.
AnomalyMatch applied to JWST data identified 58 gravitational lenses, 37 new, graded by experts and spanning redshifts to zphot ~2.1.
AGN activity correlates independently with bar strength and bulge prominence in z≤0.1 galaxies after controlling for mass and color.
Nemesis couples global and local astrophysical simulations to match direct N-body results while scaling efficiently when cores exceed the number of planetary systems.
citing papers explorer
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A new sample of Little Red Dots at $z<0.45$ in DESI DR1: Broad Balmer lines, low ionization spectrum and no variability
Eight low-redshift Little Red Dots identified in DESI DR1 exhibit broad Balmer lines, steep decrements, compact shapes, and negligible variability, with a number density roughly 10,000 times lower than at z>4.
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Spectrally and spatially resolved (sub)millimeter HCN-to-HCO$^{+}$ flux ratios in nearby ultraluminous infrared galaxies
Spatially and spectrally resolved HCN/HCO+ ratios in 18 nearby ULIRGs show outflow or AGN signatures in 16 galaxies, classified into spherical-shell, spectrally-distinct-compact, and filled geometries.
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CAZ catalog and optical light curves of 7918 blazar-selected active galactic nuclei
A catalog of 7918 blazars and candidates with nightly optical light curves, quantified variability, and Bayesian blocks-derived flaring periods from three all-sky surveys.
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VAR-PZ: Constraining the Photometric Redshifts of Quasars using Variability
VAR-PZ uses DRW-modeled variability to create photo-z priors that reduce catastrophic outliers in AGN redshift estimates from 32% to below 7% when combined with SED fitting, validated on SDSS data and LSST simulations.
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51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution
High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.
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Photometric determination of the mass accretion rates of pre-main sequence stars. IX. Recent star formation in the periphery of NGC 346
Photometric study identifies 137 PMS stars with median accretion rate 8.0×10^{-9} M⊙/yr in the NGC 346 periphery, showing correlation between accretion properties and distance to hot massive stars.
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Metal Enrichment by the First Stars Exploding at the Lower Energy Limit of Pair-Instability Supernovae
Low-energy PISNe from 140 solar-mass Pop III stars produce second-generation stars at median [Fe/H] ~ -5.5 with odd-even patterns, but their absence from EMP observations disfavors PISNe as the main early enrichment channel.
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Clustering constraints on super-early galaxy formation scenarios
Four models for super-early galaxy formation predict similar galaxy bias around 7 for faint galaxies but diverge at brighter luminosities, with the primordial black hole model showing nearly constant bias while others increase to 14.
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The ESO SupJup Survey. X. A carbon isotope contrast in the young ROXs 12 system
The ROXs 12 system shows 12CO/13CO ratios of 77 and 55 in the star and companion, with a C/O ratio of 0.54 in the companion.
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Merge and Strip II: Imprint of galaxy formation physics and viscosity on baryon-dominated dwarf galaxies
Simulations find that tidal dwarf galaxies form and persist in galaxy clusters under moderate stellar feedback across all relevant viscosities, supporting their identification as stripped remnants matching multiple observed dwarf galaxy classes.
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The exponential growth of infinitesimal perturbations in the long-term evolution of simulated galaxies
Large N-body galaxy simulations reveal high chaos with Lyapunov times that extrapolate to Milky Way galaxies being chaotic on timescales ≲ 0.1 Myr.
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The CAVITY project. The spatially resolved SFR of galaxies in voids
Void galaxies show modestly higher star formation rates in early spirals and outer disks, lower extinction, and higher gas-fraction proxies than matched galaxies in filaments and walls, suggesting slower quenching in underdense environments.
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Assessing the Impact of Source Confusion for GREX-PLUS based on Deep JWST NIRCam Imaging
Simulations from JWST data show GREX-PLUS confusion makes images shallower than JWST but depth improves without plateauing at planned survey limits, with completeness corrections allowing number counts to match JWST results.
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High-Redshift Gravitational Lens Discoveries in JWST NIRCam Using AnomalyMatch
AnomalyMatch applied to JWST data identified 58 gravitational lenses, 37 new, graded by experts and spanning redshifts to zphot ~2.1.
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The complex relationships between AGN, bars and bulges
AGN activity correlates independently with bar strength and bulge prominence in z≤0.1 galaxies after controlling for mass and color.
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Nemesis: A Multi-Scale, Multi-Physics Algorithm for Astrophysics
Nemesis couples global and local astrophysical simulations to match direct N-body results while scaling efficiently when cores exceed the number of planetary systems.
- Orbital motion and dynamical mass of the complex periodic variable binary system 2MASS J05082729-2101444