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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An all-sky NEOWISE-based search using difference imaging and a CNN classifier trained on Cas A echoes detects no other historical Galactic supernova dust echoes at WISE sensitivity and delivers a catalog of 20477 Cas A echo positions.
N-body and SPH simulations show that gas accretion along a galactic warp can generate global, long-lived phase spirals in the stellar disc with amplitudes comparable to those observed by Gaia.
JWST transit observations refine ephemerides of TOI 700 d and e by an order of magnitude in period precision but yield only upper limits on exomoons larger than Ganymede due to 46 ppm correlated noise attributed to stellar granulation.
Sub-arcsecond LOFAR imaging at 145 MHz resolves the acceleration site and downstream structure of a high-redshift radio relic, confirming its diffuse nature, showing log-normal magnetic field profiles, and providing hints of redshift evolution in the radio power versus cluster mass correlation.
A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
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.
AMIGO is an end-to-end differentiable forward model of JWST AMI that corrects detector systematics to recover high-precision astrometry and detect close high-contrast companions.
Stellar mass functions in the peaks of the Hyperion protostructure at z~2.5 show a mass-dependent excess relative to the field, with ~10x enhancement at log(M*/M⊙)~11 versus ~3.5x at log(M*/M⊙)~9.5.
SDSS-WISE coordinate offsets plus red WISE colors pre-select advanced mergers likely to host unresolved dual-AGN candidates, with Keck AO confirming substructure in 20 of 46 targets at 43 percent yield.
New envelope binding energies derived from PARSEC stellar tracks alter compact binary merger rate densities by over an order of magnitude when used in population synthesis.
The HRIEUV PSF at 174 Å redistributes 57% of light via diffraction (26%) and scattering (42%), and deconvolution with it boosts bright structure intensities by up to 40% while reducing dark areas by up to 85%.
Cryogenic phased array feed achieves 21-25 K system temperature over efficiency and 3D SVD noise reduction improves compact and extended HI source detection over traditional 2D methods.
CRIRES+ data detect H2O and CO in HIP 67522 b, imply a mass of 29.8 Earth masses inconsistent with JWST at 3 sigma, and show a tentative 2 sigma HDO signal with extreme deuterium enrichment.
Random forest models using early magnitudes, time differences, and new magnitude rates identify up to 13.6% of true broad-lined Ic supernovae in unseen test data.
OzDES final release delivers 62 new reverberation-mapped black hole masses and tighter lag-luminosity relations for Hβ, MgII, and CIV in high-redshift AGN after correcting for survey-length selection effects.
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.
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
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.
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.
3D MHD simulations of CCSN remnants from RSG and WR stars show faster shocks from photoionization and CSM expansion, plus coherent reflected shocks in WR cases, with weakly magnetized bubbles limiting PeV acceleration.
The analysis identifies ~300 pc and ~200 pc transition scales in PAH emission and ISM density PDFs in nearby galaxies by decomposing JWST mid-IR images into compact and diffuse components.
Simulations demonstrate that gas-dust interactions produce radial offsets between micron and millimeter dust in gas-bearing debris disks, depending on gas mass, optical depth, and small-grain abundance.
citing papers explorer
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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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Ghosts of eruptions past: Searching for historical Galactic supernovae using variable thermal dust echoes and machine learning
An all-sky NEOWISE-based search using difference imaging and a CNN classifier trained on Cas A echoes detects no other historical Galactic supernova dust echoes at WISE sensitivity and delivers a catalog of 20477 Cas A echo positions.
-
Phase spirals induced by the gas warp
N-body and SPH simulations show that gas accretion along a galactic warp can generate global, long-lived phase spirals in the stellar disc with amplitudes comparable to those observed by Gaia.
-
The JWST Search for Earth-Luna Analogs: Upper Limits on Exomoons and Refined Ephemerides for TOI 700 d and e
JWST transit observations refine ephemerides of TOI 700 d and e by an order of magnitude in period precision but yield only upper limits on exomoons larger than Ganymede due to 46 ppm correlated noise attributed to stellar granulation.
-
The LOFAR sub-arcsecond view of the high-redshift radio relic in PSZ2G091.83+26.11
Sub-arcsecond LOFAR imaging at 145 MHz resolves the acceleration site and downstream structure of a high-redshift radio relic, confirming its diffuse nature, showing log-normal magnetic field profiles, and providing hints of redshift evolution in the radio power versus cluster mass correlation.
-
Discovery of Galactic center ejected star in DESI DR1
A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
-
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.
-
AMIGO: a Data-Driven Calibration of the JWST Interferometer
AMIGO is an end-to-end differentiable forward model of JWST AMI that corrects detector systematics to recover high-precision astrometry and detect close high-contrast companions.
-
The HST-Hyperion Survey: Environmental Imprints on the Stellar-Mass Function at z~2.5
Stellar mass functions in the peaks of the Hyperion protostructure at z~2.5 show a mass-dependent excess relative to the field, with ~10x enhancement at log(M*/M⊙)~11 versus ~3.5x at log(M*/M⊙)~9.5.
-
A High Resolution Search for Dual AGN Candidates in Mergers: A Pre-Selection Strategy using Keck AO
SDSS-WISE coordinate offsets plus red WISE colors pre-select advanced mergers likely to host unresolved dual-AGN candidates, with Keck AO confirming substructure in 20 of 46 targets at 43 percent yield.
-
The impact of envelope binding energies on the merger rate density of binary compact objects
New envelope binding energies derived from PARSEC stellar tracks alter compact binary merger rate densities by over an order of magnitude when used in population synthesis.
-
A Point-Spread Function for the Extreme Ultraviolet High-Resolution Imager on board Solar Orbiter
The HRIEUV PSF at 174 Å redistributes 57% of light via diffraction (26%) and scattering (42%), and deconvolution with it boosts bright structure intensities by up to 40% while reducing dark areas by up to 85%.
-
Murriyang cryogenic phased array feed: spectral-line results and noise-reduction methods
Cryogenic phased array feed achieves 21-25 K system temperature over efficiency and 3D SVD noise reduction improves compact and extended HI source detection over traditional 2D methods.
-
Atmospheric characterization of HIP 67522 b with VLT/CRIRES+. VLT/CRIRES+ suggests a heavier planet and hints at deuterium fractionation
CRIRES+ data detect H2O and CO in HIP 67522 b, imply a mass of 29.8 Earth masses inconsistent with JWST at 3 sigma, and show a tentative 2 sigma HDO signal with extreme deuterium enrichment.
-
Machine learning for the early classification of broad-lined Ic supernovae
Random forest models using early magnitudes, time differences, and new magnitude rates identify up to 13.6% of true broad-lined Ic supernovae in unseen test data.
-
OzDES Reverberation Mapping of Active Galactic Nuclei: Final Data Release, Black-Hole Mass Results, & Scaling Relations
OzDES final release delivers 62 new reverberation-mapped black hole masses and tighter lag-luminosity relations for Hβ, MgII, and CIV in high-redshift AGN after correcting for survey-length selection effects.
-
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.
-
The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
-
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.
-
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.
-
Multi-Dimensional MHD simulations of young Core-Collapse Supernova Remnants
3D MHD simulations of CCSN remnants from RSG and WR stars show faster shocks from photoionization and CSM expansion, plus coherent reflected shocks in WR cases, with weakly magnetized bubbles limiting PeV acceleration.
-
Uncovering the multi-scale structure of dust distribution in nearby galaxies
The analysis identifies ~300 pc and ~200 pc transition scales in PAH emission and ISM density PDFs in nearby galaxies by decomposing JWST mid-IR images into compact and diffuse components.
-
The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) XI: Gas-dust interactions and radial offsets between micron and millimetre-sized grains
Simulations demonstrate that gas-dust interactions produce radial offsets between micron and millimeter dust in gas-bearing debris disks, depending on gas mass, optical depth, and small-grain abundance.
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Radiative feedbacks as drivers for quasi-periodic-oscillation activity in black-hole X-ray binaries
Radiative feedback from disk-reprocessed soft photons produces limit-cycle oscillations whose frequency and spectra match observed type-C QPOs in black-hole X-ray binaries for suitable coronal parameters.
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Radio detection of supernova remnant G310.7-5.4 with $\gamma$-ray counterpart: Abeona SNR
Abeona is confirmed as a faint ~30 arcmin bilateral radio SNR shell with synchrotron polarization, flux density 1.5 Jy, and a spatially coincident 5.7-sigma GeV gamma-ray source.
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From Gaia to GaiaNIR: II. A new view of the Milky Way bar
Gaia DR3 data shows the Milky Way bar pattern speed is biased high by 14.4 km s^{-1} kpc^{-1}, with a bias-corrected estimate of 29.3 ± 2.3 km s^{-1} kpc^{-1}.
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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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Unraveling the Secrets of the lower Solar Atmosphere: One year of Operation of the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1
SUIT on Aditya-L1 completed one year of UV solar imaging with calibration routines, software tools, and notable observations of the lower solar atmosphere presented.
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The S stars' zone of avoidance in the Galactic center
Binary disruption and relaxation models explain the zone of avoidance and thermal eccentricities in S-star orbits around the Galactic center black hole.
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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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Discriminating Planck Reionisation Histories with the kSZ Effect
Short and long reionisation histories consistent with Planck yield kSZ power spectra that remain separable despite uncertainties, requiring a sensitivity of ~0.4 μK² at ℓ~2000 to discriminate between the scenarios.
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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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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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Stellar mass and morphology segregation in pairs and multiplets in the cosmic web
Large-scale cosmic environment influences galaxy stellar mass and morphology beyond local companions, with void galaxies being less massive and showing distinct shape distributions.
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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.
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QUIJOTE-TFGI polarization calibration -- Ground characterization and on-sky validation with Tau A and the Moon
Ground diode and on-sky calibration of QUIJOTE-TFGI confirms phase-switch errors near zero and yields Moon refraction index 1.209 at 31 GHz with consistent responsivity results.
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Association of the IceCube neutrinos with CAZ blazar light curves
Spatiotemporal correlation search between IceCube neutrinos and blazar optical flares in expanded samples shows weak signals primarily from two associations, with an upper limit of 8% neutrino contribution from flaring blazars and higher Doppler factors in associated sources.
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CONCERTO: forward modeling of interferograms for calibration
A forward model is developed to simulate interferograms and spectral responses for the CONCERTO LEKID-based Fourier-transform spectrometer, enabling ZPD alignment, flat-fielding, and absolute brightness calibration of COSMOS field observations.
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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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Investigating ACS/WFC Amp-to-Amp Sensitivities
New calibration data from white dwarf standards show no significant sensitivity offset between ACS/WFC chips in F606W and F814W, contradicting a prior 0.05 mag global difference.
- A spectroscopic map of the Galactic centre: Integrated light and dynamical modelling