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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32 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
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A CNN with attention and shared latent space recovers SFHs and metallicities from spectro-photometric data with ~0.12 dex age and ~0.03 dex metallicity dispersion while running thousands of times faster than full spectral fitting.
The average dust attenuation law at 2<z<7 is empirically measured from stacked SEDs and matches the local starburst curve with R_V=3.98, a flatter UV slope, and no 2175A bump.
A z=6.64 LRD host galaxy exhibits a fast AGN-driven outflow with 5500 km/s velocities, dusty gas, and low metallicity, confirming AGN presence in these systems.
JWST observations of Terzan 5 reveal multiple stellar populations with ages of 12.5 and 4.7 Gyr, plus hints of a 3.8 Gyr component, suggesting a multi-epoch formation history.
Speckle imaging of 81 RR Lyrae stars detects 10 likely bound companions at 20-220 AU separations, yielding a binary fraction estimate above 12 percent.
MCMC fits to accretion disk SEDs of 23 high-z blazars give black hole masses of 10^8-10^10 solar masses and Eddington ratios 0.04-1, showing that ignoring IGM attenuation overestimates masses with larger bias at higher redshift.
Intermediate-redshift galaxies show systematically higher dust attenuation at fixed star formation rate surface density than local galaxies, with the excess strongest for galaxies below the star-forming main sequence.
JWST auroral-line selected galaxies at high redshift show an MZR slope of 0.38 with selection biases favoring high-SFR low-metallicity systems, while stacked non-detections lie closer to the fundamental metallicity relation.
Photometric study of Glimpse-C02 yields distance 6.3 kpc, age 11.9 Gyr, [Fe/H] = -0.30, and mass 3.57e4 solar masses, classifying it as an old metal-rich bulge globular cluster.
JWST spectra of young AB Dor L dwarfs show varying silicate absorption strengths, with 4/5 objects matching the trend of deeper features at equator-on inclinations and a tentative peak-wavelength correlation with viewing angle.
A HeII-based correction method makes UV and optical measurements of electron temperature and O/H metallicity agree within 0.1 dex in three nearby BCD galaxies.
N/O ratios in z~3 star-forming galaxies are indistinguishable from low-redshift values over the metallicity range 12+log(O/H)=7.5-8.44.
Extended-image strong lensing model of cluster G165 reduces mass-parameter uncertainties by over an order of magnitude and maps dust extinction in the host of SN H0pe at z=1.78, finding A_V ≈ 0.9 mag near the explosion site.
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.
MIST provides a new publicly available grid of solar-scaled stellar isochrones and evolutionary tracks computed self-consistently with MESA from pre-main sequence through advanced stages for masses 0.1-300 solar masses and metallicities -2 to 0.5.
Reddening maps of the LMC and SMC are produced via SED fitting of RGB stars from SMASH and VMC photometry, yielding mean E(B-V) of 0.076 mag and 0.058 mag with relative spatial structure stable across three stellar atmosphere models but absolute values differing by up to 0.03 mag.
BM Cas is an evolved Algol or post-Algol system in which the A supergiant primary fills its Roche lobe and the undetected secondary may be more massive, with the stars having had intermediate initial masses.
Dust depletion from UV spectra is associated with peaks in 3D extinction density maps to locate and chemically characterize local gas clouds at ~100 pc scales.
Chandra spectra of GX 13+1 favor average-Galactic grain size distributions for interstellar dust, dominated by amorphous olivine with ~2% crystallinity and ruling out very diffuse or dense ISM scenarios.
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.
A new compact hierarchical triple main-sequence star system G1010 was discovered through combined low- and high-SNR spectroscopy, Gaia DR3 data, and TESS light curve analysis, showing an inner eclipsing binary rather than a compact object companion.
Hα survey of 357 ALFALFA LSBGs shows deviation from the Kennicutt-Schmidt law but adherence to the extended Schmidt law that includes stellar mass.
Extends YBC to zYBC by redshifting stellar spectra with dust attenuation for high-redshift photometric systems and shows non-monotonic color behaviors with larger dispersions at high z.
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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Determining star formation histories and age-metallicity relations with convolutional neural networks
A CNN with attention and shared latent space recovers SFHs and metallicities from spectro-photometric data with ~0.12 dex age and ~0.03 dex metallicity dispersion while running thousands of times faster than full spectral fitting.
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A first empirical derivation of the average dust attenuation law at 2<z<7
The average dust attenuation law at 2<z<7 is empirically measured from stacked SEDs and matches the local starburst curve with R_V=3.98, a flatter UV slope, and no 2175A bump.
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GLIMPSED: Direct evidence for a fast AGN-driven outflow from a z=6.64 Little Red Dot host galaxy
A z=6.64 LRD host galaxy exhibits a fast AGN-driven outflow with 5500 km/s velocities, dusty gas, and low metallicity, confirming AGN presence in these systems.
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The multi-age stellar populations of Terzan 5 as revealed by JWST
JWST observations of Terzan 5 reveal multiple stellar populations with ages of 12.5 and 4.7 Gyr, plus hints of a 3.8 Gyr component, suggesting a multi-epoch formation history.
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Finding the elusive RR Lyrae companions via speckle imaging
Speckle imaging of 81 RR Lyrae stars detects 10 likely bound companions at 20-220 AU separations, yielding a binary fraction estimate above 12 percent.
-
Black-hole mass estimation through accretion disk spectral fitting for high-redshift blazars
MCMC fits to accretion disk SEDs of 23 high-z blazars give black hole masses of 10^8-10^10 solar masses and Eddington ratios 0.04-1, showing that ignoring IGM attenuation overestimates masses with larger bias at higher redshift.
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The MAGPI Survey: Evidence for Non-Universal Resolved Dust Attenuation Relations Beyond the Local Universe
Intermediate-redshift galaxies show systematically higher dust attenuation at fixed star formation rate surface density than local galaxies, with the excess strongest for galaxies below the star-forming main sequence.
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Shape of Direct-Method Mass-Metallicity Relation with JWST: Fast-Track Nitrogen and Helium Enrichment
JWST auroral-line selected galaxies at high redshift show an MZR slope of 0.38 with selection biases favoring high-SFR low-metallicity systems, while stacked non-detections lie closer to the fundamental metallicity relation.
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Revealing the stellar population of the ultra-obscured Galactic globular cluster Glimpse-C02
Photometric study of Glimpse-C02 yields distance 6.3 kpc, age 11.9 Gyr, [Fe/H] = -0.30, and mass 3.57e4 solar masses, classifying it as an old metal-rich bulge globular cluster.
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Clouds with a silicate lining: Using JWST spectra to probe atmospheric diversity in young AB Dor L dwarfs
JWST spectra of young AB Dor L dwarfs show varying silicate absorption strengths, with 4/5 objects matching the trend of deeper features at equator-on inclinations and a tentative peak-wavelength correlation with viewing angle.
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Consistent Gas-Phase Temperatures and Metallicities from UV and Optical Nebular Emission: A Reliable Foundation from z=0 to Cosmic Dawn
A HeII-based correction method makes UV and optical measurements of electron temperature and O/H metallicity agree within 0.1 dex in three nearby BCD galaxies.
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Nitrogen abundances in star-forming galaxies 2.2 Gyr after the Big Bang are not elevated
N/O ratios in z~3 star-forming galaxies are indistinguishable from low-redshift values over the metallicity range 12+log(O/H)=7.5-8.44.
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Strong Lensing Model and Dust Extinction Maps of the Host Galaxy of Type Ia Supernova H0pe
Extended-image strong lensing model of cluster G165 reduces mass-parameter uncertainties by over an order of magnitude and maps dust extinction in the host of SN H0pe at z=1.78, finding A_V ≈ 0.9 mag near the explosion site.
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A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.
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MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
MIST provides a new publicly available grid of solar-scaled stellar isochrones and evolutionary tracks computed self-consistently with MESA from pre-main sequence through advanced stages for masses 0.1-300 solar masses and metallicities -2 to 0.5.
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Reddening maps of the Magellanic Clouds using spectral energy distribution fitting of red giants
Reddening maps of the LMC and SMC are produced via SED fitting of RGB stars from SMASH and VMC photometry, yielding mean E(B-V) of 0.076 mag and 0.058 mag with relative spatial structure stable across three stellar atmosphere models but absolute values differing by up to 0.03 mag.
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The A Supergiant Eclipsing Binary BM Cas: An Evolved, Intermediate Mass System
BM Cas is an evolved Algol or post-Algol system in which the A supergiant primary fills its Roche lobe and the undetected secondary may be more massive, with the stars having had intermediate initial masses.
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Connecting the dusty dots: dust depletion and extinction of local interstellar clouds
Dust depletion from UV spectra is associated with peaks in 3D extinction density maps to locate and chemically characterize local gas clouds at ~100 pc scales.
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Investigating interstellar dust along the line of sight of GX 13+1 using different dust size distributions
Chandra spectra of GX 13+1 favor average-Galactic grain size distributions for interstellar dust, dominated by amorphous olivine with ~2% crystallinity and ruling out very diffuse or dense ISM scenarios.
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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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Discovery of a compact hierarchical triple main-sequence star system while searching for binary stars with compact objects
A new compact hierarchical triple main-sequence star system G1010 was discovered through combined low- and high-SNR spectroscopy, Gaia DR3 data, and TESS light curve analysis, showing an inner eclipsing binary rather than a compact object companion.
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An $\rm H\alpha$ Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA HI Survey
Hα survey of 357 ALFALFA LSBGs shows deviation from the Kennicutt-Schmidt law but adherence to the extended Schmidt law that includes stellar mass.
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Bolometric correction for cosmologically redshifted stars with dust: an update to the YBC database
Extends YBC to zYBC by redshifting stellar spectra with dust attenuation for high-redshift photometric systems and shows non-monotonic color behaviors with larger dispersions at high z.
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SN 2023dbc in M108: Optical and Near-Infrared Observations of a Highly-Obscured, Moderately Energetic Stripped-Envelope Supernova
SN 2023dbc is a moderately energetic, highly obscured Type Ib supernova with estimated kinetic energy 4.1e51 erg, ejecta mass 2.3 solar masses, and nickel mass 0.038 solar masses, consistent with an aspherical explosion and partial fallback from a 15 solar mass binary progenitor that retained helium
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Chemical composition and kinematics of ionised gas in low-mass star-forming galaxies with extremely high [OIII]/[OII] ratios
Spectrophotometry of 11 low-mass galaxies with extreme O32 ratios yields helium and oxygen abundances plus line-specific velocity dispersions that differ between inner and outer HII-region zones.
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The complex history of NGC 1427A revealed by its star clusters and star formation history
NGC 1427A shows a complex star formation history with young (~10 Myr) and intermediate-age (100-300 Myr) clusters that trace environmental processing during its orbit in the Fornax cluster.
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Relative frequencies of core-collapse supernovae as a function of metallicity: observations vs theoretical predictions
Observations show a slight rise in stripped-envelope supernovae relative to hydrogen-rich ones at higher metallicities, with binary-interaction or rotation models able to match the trends though no unique scenario fits best.
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Characterisation of an EXor outburst SPICY 97589
SPICY 97589 is an M3 star of 0.29 solar masses whose 2023 outburst was powered by an accretion rate of 2.38e-7 solar masses per year, two orders of magnitude above its quiescent level.
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Stellar Population Inference with Prospector
Prospector is a flexible code for Bayesian inference of stellar population parameters from multi-wavelength photometry and spectroscopy via forward modeling and posterior sampling.
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Extinction law and stellar mass in the Nuclear Bulge from kinematically-selected red clump stars
Kinematically selected red clump stars give A_K/E_{H-K} = 1.259 ± 0.074, A_H/A_K = 1.794 ± 0.046, and a Nuclear Bulge stellar mass of 12.2 ± 2.6 × 10^8 solar masses.
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Multi-wavelength study of EP250416a / GRB 250416C: An Optically Dark Long GRB with a Late Jet Break
EP250416a is an X-ray-rich long GRB at z=0.963 showing a late jet break at 1.5e6 s and optical darkness explained by A_V^host = 5.5 mag extinction.