Symbolic regression yields an emulator for the radial Fourier transform of the Sérsic profile that enables 2.5 times faster galaxy profile fitting with minimal accuracy loss.
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A generative latent diffusion framework jointly infers photometric-redshift PDFs and reconstructs rest-frame spectra from photometric data after pre-training a spectral autoencoder on millions of spectra.
J1248+4826 is a newly identified compact ORC candidate with a ~30 kpc ring radius and ~200 kpc total extent at assumed z=0.2, consistent with the ORC population but with the host galaxy on the ring edge and no ongoing AGN activity.
Symmetric kiloparsec-scale radio knots in NGC 7213 indicate a confined weak jet and recurrent nuclear activity in this low-luminosity AGN.
Discovery of an HI 21 cm absorber at z=0.882 towards PKS 0405-385 with associated MgII/FeII lines at the same redshift plus two other metal systems, and a revised quasar linear size >0.3 pc with no repeating intraday variability.
Stacking analysis of eROSITA observations detects statistically significant X-ray signal from hot gas out to 2 r_200m with a transition at the halo boundary, showing higher gas spread than in IllustrisTNG simulations.
JADES is a 770-hour JWST Cycle 1 survey delivering deep multi-band NIRCam imaging over ~209 arcmin² and NIRSpec spectroscopy of over 5000 sources in the GOODS-S and GOODS-N fields to study galaxy evolution from high redshift to cosmic noon.
CO(1-0) observations of three BGGs at z~0.3 yield one detection with M_H2 ~3e10 solar masses and two upper limits below 1e10, implying depletion timescales of 0.5-1.5 Gyr and possible early gas exhaustion in group environments.
KNN imputation gives highest photo-z accuracy under ideal random missingness with complete training data, while SAITS is more robust for incomplete training sets and realistic mixed missingness patterns in CSST data.
HI absorption is detected in three sight lines through two disk galaxies at 7-22 Mpc, yielding Local-Group-like spin temperatures but lower CNM fractions due to resolution averaging in emission spectra.
New sample of 377 galaxies shows MgII absorber strength rising with redshift, positive correlations with stellar mass and SFR, clumpy CGM structure, and mostly bound gas consistent with galactic fountain recycling.
FRIIs show lower cluster association rates than FRIs (30.6% vs 48.6% volume-limited; 32.6% vs 45.6% paired), with the gap widening at high luminosity, yet similar environments once inside clusters.
ELEPHANT flags hostless transients from ZTF alerts with 0.84 accuracy, confirming 67 genuine cases mostly as Type Ia supernovae from 877 candidates between 2023 and 2025.
A multimodal neural network trained on MPA-JHU references produces SFR, stellar mass, and metallicity estimates for 547 million low-redshift galaxies in DESI LS DR10.
Machine learning models achieve NMAD 0.036 and 5.6% outliers for quasar photometric redshifts, identifying 185 high-probability pair candidates in MGQPC with 20 spectroscopically confirmed as physical pairs.
A catalog of 6104 high-redshift quasar candidates (4.5 < z < 7) in the southern hemisphere was produced via multiwavelength photometry and SED fitting, with spectroscopic confirmation of three objects at z > 5.
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.
citing papers explorer
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Using Symbolic Regression to Emulate the Radial Fourier Transform of the S\'ersic profile for Fast, Accurate and Differentiable Galaxy Profile Fitting
Symbolic regression yields an emulator for the radial Fourier transform of the Sérsic profile that enables 2.5 times faster galaxy profile fitting with minimal accuracy loss.
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Joint probabilistic inference of galaxy redshifts and rest-frame spectra from photometric fluxes with latent diffusion
A generative latent diffusion framework jointly infers photometric-redshift PDFs and reconstructs rest-frame spectra from photometric data after pre-training a spectral autoencoder on millions of spectra.
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A Compact Radio Ring with a Diffuse Envelope in LOFAR: Odd Radio Circle or Distinct Phenomenon?
J1248+4826 is a newly identified compact ORC candidate with a ~30 kpc ring radius and ~200 kpc total extent at assumed z=0.2, consistent with the ORC population but with the host galaxy on the ring edge and no ongoing AGN activity.
-
Symmetric kiloparsec-scale radio knots in NGC 7213: evidence for a confined weak jet and recurrent nuclear activity
Symmetric kiloparsec-scale radio knots in NGC 7213 indicate a confined weak jet and recurrent nuclear activity in this low-luminosity AGN.
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One sightline, many systems: a FLASH discovery of HI towards scintillating quasar PKS 0405-385
Discovery of an HI 21 cm absorber at z=0.882 towards PKS 0405-385 with associated MgII/FeII lines at the same redshift plus two other metal systems, and a revised quasar linear size >0.3 pc with no repeating intraday variability.
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The SRG/eROSITA All-Sky Survey. Detection of shock-heated gas beyond the halo boundary into the accretion region
Stacking analysis of eROSITA observations detects statistically significant X-ray signal from hot gas out to 2 r_200m with a transition at the halo boundary, showing higher gas spread than in IllustrisTNG simulations.
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Overview of the JWST Advanced Deep Extragalactic Survey (JADES)
JADES is a 770-hour JWST Cycle 1 survey delivering deep multi-band NIRCam imaging over ~209 arcmin² and NIRSpec spectroscopy of over 5000 sources in the GOODS-S and GOODS-N fields to study galaxy evolution from high redshift to cosmic noon.
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Molecular gas properties of star-forming brightest group galaxies at $z \sim 0.3$
CO(1-0) observations of three BGGs at z~0.3 yield one detection with M_H2 ~3e10 solar masses and two upper limits below 1e10, implying depletion timescales of 0.5-1.5 Gyr and possible early gas exhaustion in group environments.
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Comparative analysis of missing data imputation methods for CSST survey: Impact on photometric redshift estimation performance
KNN imputation gives highest photo-z accuracy under ideal random missingness with complete training data, while SAITS is more robust for incomplete training sets and realistic mixed missingness patterns in CSST data.
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HI absorption in MHONGOOSE -- Spin temperatures and cold neutral medium in nearby disk galaxies
HI absorption is detected in three sight lines through two disk galaxies at 7-22 Mpc, yielding Local-Group-like spin temperatures but lower CNM fractions due to resolution averaging in emission spectra.
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Baryonic Ecosystem IN Galaxies (BEINGMgII) -- III. Cool gas reservoirs at $0.3 \le z \le 1.6$ in the Dark Energy Survey
New sample of 377 galaxies shows MgII absorber strength rising with redshift, positive correlations with stellar mass and SFR, clumpy CGM structure, and mostly bound gas consistent with galactic fountain recycling.
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Probing the environments of FRI and FRII radio galaxies in LoTSS DR2 with galaxy clusters
FRIIs show lower cluster association rates than FRIs (30.6% vs 48.6% volume-limited; 32.6% vs 45.6% paired), with the gap widening at high luminosity, yet similar environments once inside clusters.
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Hostless extragalactic transients in Fink: Results from the ELEPHANT pipeline
ELEPHANT flags hostless transients from ZTF alerts with 0.84 accuracy, confirming 67 genuine cases mostly as Type Ia supernovae from 877 candidates between 2023 and 2025.
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A Value-added Physical Properties Catalog for Low-redshift Galaxies from DESI Legacy Imaging Surveys DR10
A multimodal neural network trained on MPA-JHU references produces SFR, stellar mass, and metallicity estimates for 547 million low-redshift galaxies in DESI LS DR10.
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Search for quasar pairs with Gaia astrometric data. II. Photometric redshift prediction with machine learning for the MGQPC catalogue
Machine learning models achieve NMAD 0.036 and 5.6% outliers for quasar photometric redshifts, identifying 185 high-probability pair candidates in MGQPC with 20 spectroscopically confirmed as physical pairs.
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4MOST ChANGES: Catalog of high-redshift quasar candidates (4.5 < $z$ < 7) selected with SED fitting
A catalog of 6104 high-redshift quasar candidates (4.5 < z < 7) in the southern hemisphere was produced via multiwavelength photometry and SED fitting, with spectroscopic confirmation of three objects at z > 5.
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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.