Astrophysics · Physics & Astronomy
Cosmology & Nongalactic Astrophysics
The newest papers in Cosmology & Nongalactic Astrophysics that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
206 papers, from 6 September 2026 to 5 November 2026: 206 arXiv preprints.
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Newest papers, page 9
MATISSE in the era of GRAVITY+
MATISSE, the mid-infrared spectro-interferometric imager of the Very Large Telescope Interferometer (VLTI), has been feeding on the light corrected by the GRAVITY+ Adaptive Optics (GPAO) systems…ViCTORIA project: A pilot study of the M49 region in the Virgo cluster in polarisation
Large-scale magnetic fields permeate the Intracluster Medium (ICM) of galaxy clusters.Source--Line Associations in JWST/NIRSpec Dense-Shutter Spectroscopy
We demonstrate the feasibility of source--line association in JWST/NIRSpec dense-shutter spectroscopy, with $\sim$2000 sources observed simultaneously per pointing regardless of spectral overlap.The abundance and emission of PAHs from the local to early Universe
We present the first large-volume cosmological simulation of galaxy evolution with a model for the abundance and luminous emission of Polycyclic Aromatic Hydrocarbons (PAHs) across a wide range of…Massive Population III Galaxies Near a GN-z11 Analog: The Role of the Baryon-Dark Matter Streaming Velocity
Recently the James Webb Space Telescope (JWST) detected Hebe, a Population III (Pop III) candidate located ${\sim}3$ kpc in projection from the massive $z=10.6$ galaxy GN-z11.LIMFAST. V. Probing Reionization with the Synergy Between 21 cm and Photometric Galaxy Surveys
Cross-correlating the 21\,cm signal from intergalactic neutral hydrogen with the galaxy distribution is a powerful probe of the Epoch of Reionization and the physical mechanisms driving it.Low Frequency Gravitational Wave Detection with Gravito-Magnetism
The detection of gravitational waves in the low-frequency band (10 nHz to 1 micro-Hz) using inner solar system proof masses is severely limited by Newtonian gravity gradient noise (GGN) sourced by…JWST lensed quasar dark matter survey V: Hints of self-interacting dark matter from 29 quadruply imaged quasars
Theories of self-interacting dark matter (SIDM) predict the eventual core collapse of dark matter halos, a process that transforms these structures into extremely efficient gravitational lenses.COSMOS-3D: Diverse Environments and Hot-dust Signatures among Dusty Star-forming Galaxies at $z$ = 4.9-7.2
Dusty star-forming galaxies (DSFGs) are expected to trace early massive-halo assembly, but the connection between dust-obscured star formation, morphology, hot dust, and environment remains unclear…Enhanced density fluctuations: consequences for stellar dynamics and dark matter substructure
Enhanced density fluctuations form early dark matter halos, which serve as early gravitational potential wells for baryons.Constraining reionization with persistent homology: a novel summary statistic for wide-field Lyman-$α$ emitter observations
The spatial clustering of Lyman-$α$ emitters (LAEs) is one of the most promising observables for constraining reionization.LMC-Perturbed LZ Dark Matter Landscape
The local dark matter (DM) velocity distribution is significantly altered by the gravitational impact of the Large Magellanic Cloud (LMC), which creates a high-velocity tail.How well do integral-of-motion distribution functions describe Milky Way-analogue halos?
We study the dark-matter phase space distribution of Milky Way-mass halos in the Auriga simulations, considering both hydrodynamic and dark-matter-only runs.Constraining the galaxy-halo connection at $z>10$ using the neighbors of UV-bright galaxies
JWST has discovered an overabundance of UV-luminous galaxies compared to extrapolations from pre-JWST galaxy formation models.The Physical Origins of Scatter in the Dust Attenuation Scaling Relation of Star-Forming Galaxies: Star--Dust Geometry
Characterising the physical drivers of dust attenuation in star-forming galaxies (SFGs) is essential for interpreting their spectral energy distributions and star formation histories.Cool Embeddings: Predicting Galaxy Cluster Cooling Times in IllustrisTNG and TNG-Cluster with AstroCLIP
Foundation models trained on optical astronomical data have not previously been applied to X-ray cluster thermodynamics.Probing the cosmic web with fast radio bursts: II. Scintillation
We consider the formation of multiphase gas in cosmic web objects (CWOs) through cooling and fragmentation within the shock-heated medium of cosmic sheets and filaments, and the circumgalactic…$\textit{Nāpōwawā`enakaulua}$: a close quasar pair at cosmic dawn in the Aether survey
We present the discovery and first characterization of $\textit{Nāpōwawā`enakaulua}$: the most compact known quasar pair candidate in the Epoch of Reionization, with a projected separation of only…SLICE: Unveiling the Multi-Component Merging Core of SPT-CLJ1150-2805 Through Strong-Lensing Mass Modelling
We present a new strong-lensing and X-ray mass model of the merging galaxy cluster SPT-CLJ1150-2805 ($z=0.383$), combining JWST NIRCam, HST, Chandra, and VLT/MUSE data to robustly decompose its…Spatial segregation as the origin of anisotropic satellite quenching in haloes and beyond
Satellite galaxies in massive halos are seen to be preferentially quenched along the major axes of their central galaxies.