Confirmation of 77 new heavily reddened quasars at 1.5 < z < 3.9 with high luminosities and extinctions, showing they are deficient in hot and warm dust relative to blue quasars and supporting a blow-out feedback phase.
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Galaxies hosting co-spatial radio sources show roughly twice the Compton-y signal at fixed stellar mass compared to those without, persisting to halo scales, with two competing explanations: higher halo mass or AGN thermal energy injection.
Galaxies become less concentrated, more asymmetric and less clumpy toward lower stellar masses, with bar fraction declining to zero near 10^8 solar masses and CAS parameters losing separating power in the dwarf regime.
Host galaxy potentials alone produce complex morphological features in most stellar streams, with pericentric distance as the strongest predictor of smoothness.
Heliostack enables nonlinear shift-and-stack detection of faint solar system objects over 15-day baselines, yielding two new Cold Classical Kuiper Belt object discoveries in archival HST images.
Copula-based non-Gaussian likelihoods for weak-lensing correlation functions improve large-scale agreement with simulations and can shift S8 by ~1σ on 1000 deg² surveys, with negligible shifts at stage-IV areas.
LSST will image 18,000 square degrees of sky about 800 times across six bands over 10 years to a coadded depth of r~27.5, producing a public database of 40 billion objects and 32 trillion observations.
Void x CMB lensing from Roman mocks is robust to catalog construction choices and forecasts S/N of 13-31 sigma with Planck, SO, and CMB-S4-like data for 2D and 3D voids.
A tiered observational strategy is outlined to identify planetary-scale broadband radio technosignatures (BRaTs) from advanced civilizations up to 100 pc away using multi-parameter diagnostics to separate them from natural signals.
The Survey Footprint Explorer provides an interactive browser-based platform for visualizing and cross-matching the footprints of 13 astronomical surveys using MOC maps and Aladin Lite.
MUST is a new 6.5 m telescope designed to deliver simultaneous optical spectra for over 20,000 targets across a 5 deg² field, enabling the largest 3D spectroscopic map of the Universe with redshifts for more than 100 million objects over an 8-year survey.
A ResNet-50 and BiLSTM multi-modal fusion network achieves 99.81% galaxy recall and 99.66% star recall on a CSST simulated dataset of 125,896 objects.
Scalar-field reconstruction of Ricci-Gauss-Bonnet dark energy in Hořava-Lifshitz cosmology produces an equation of state that transitions smoothly to de Sitter-like behavior at late times, with stable sound speed and non-negative total entropy change at the apparent horizon.
citing papers explorer
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Hidden Monsters with SPHEREx I: A goldmine for heavily reddened quasars at cosmic noon
Confirmation of 77 new heavily reddened quasars at 1.5 < z < 3.9 with high luminosities and extinctions, showing they are deficient in hot and warm dust relative to blue quasars and supporting a blow-out feedback phase.
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Thermal Sunyaev-Zel'dovich Measurements of Locally Bright Galaxies with ACT DR6: Radio Source Contamination and Excess Compton-y Signal
Galaxies hosting co-spatial radio sources show roughly twice the Compton-y signal at fixed stellar mass compared to those without, persisting to halo scales, with two competing explanations: higher halo mass or AGN thermal energy injection.
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Global trends in morphology from massive to dwarf galaxies
Galaxies become less concentrated, more asymmetric and less clumpy toward lower stellar masses, with bar fraction declining to zero near 10^8 solar masses and CAS parameters losing separating power in the dwarf regime.
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No Stream Left Unscathed: The imprint of a host galaxy
Host galaxy potentials alone produce complex morphological features in most stellar streams, with pericentric distance as the strongest predictor of smoothness.
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heliostack: A Novel Approach to Minor Planet Discovery
Heliostack enables nonlinear shift-and-stack detection of faint solar system objects over 15-day baselines, yielding two new Cold Classical Kuiper Belt object discoveries in archival HST images.
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The Non-Gaussian Weak-Lensing Likelihood: A Multivariate Copula Construction and Impact on Cosmological Constraints
Copula-based non-Gaussian likelihoods for weak-lensing correlation functions improve large-scale agreement with simulations and can shift S8 by ~1σ on 1000 deg² surveys, with negligible shifts at stage-IV areas.
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LSST: from Science Drivers to Reference Design and Anticipated Data Products
LSST will image 18,000 square degrees of sky about 800 times across six bands over 10 years to a coadded depth of r~27.5, producing a public database of 40 billion objects and 32 trillion observations.
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Towards precision cosmology with Void x CMB correlations (II): Impact of mock catalogs on the Void x CMB lensing signal
Void x CMB lensing from Roman mocks is robust to catalog construction choices and forecasts S/N of 13-31 sigma with Planck, SO, and CMB-S4-like data for 2D and 3D voids.
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Isolating Broadband Radio Technosignatures (BRaTs): A Framework for Detecting Planetary-Scale Leakage
A tiered observational strategy is outlined to identify planetary-scale broadband radio technosignatures (BRaTs) from advanced civilizations up to 100 pc away using multi-parameter diagnostics to separate them from natural signals.
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Survey Footprint Explorer: A Browser-Based Interactive Tool for Visualizing and Cross-Matching Astronomical Survey Footprints
The Survey Footprint Explorer provides an interactive browser-based platform for visualizing and cross-matching the footprints of 13 astronomical surveys using MOC maps and Aladin Lite.
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From Large Telescopes to the MUltiplexed Survey Telescope (MUST)
MUST is a new 6.5 m telescope designed to deliver simultaneous optical spectra for over 20,000 targets across a 5 deg² field, enabling the largest 3D spectroscopic map of the Universe with redshifts for more than 100 million objects over an 8-year survey.
-
A Multi-modal Fusion Network for Star-Galaxy Classification from CSST Simulated Datasets
A ResNet-50 and BiLSTM multi-modal fusion network achieves 99.81% galaxy recall and 99.66% star recall on a CSST simulated dataset of 125,896 objects.
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Scalar-Field Reconstruction of Ricci--Gauss--Bonnet Dark Energy in Ho\v{r}ava--Lifshitz Cosmology
Scalar-field reconstruction of Ricci-Gauss-Bonnet dark energy in Hořava-Lifshitz cosmology produces an equation of state that transitions smoothly to de Sitter-like behavior at late times, with stable sound speed and non-negative total entropy change at the apparent horizon.