VLBI at 4.9 GHz plus multi-epoch survey data reveal a fading parsec-scale radio component near the optical center of a dwarf galaxy, interpreted as transient ejecta from IMBH accretion.
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Spectroscopic and imaging confirmation of the brightest known quadruply-lensed quasar J1330-0905 at z=2.22 with Einstein radius ~0.45 arcsec and predicted magnification ~56.
Quasar nebulae at z~1 are diverse objects shaped by galaxy interactions, host gas, group environments, and quasar activity, with the largest irregular ones most tied to interactions.
The paper outlines the goals for the SKA-Mid Galactic Plane survey at 10-15 GHz to deliver the first uniform high-resolution view of ionized structures and feedback in the Milky Way.
Citizen science discovery of a bow-and-arrow radio galaxy with ~560 kpc bow-shock-like structure in a multi-halo environment at z=0.159.
Presents ultra-low frequency spectral index maps for 22 bright extended radio galaxies showing indices of ~0.5 near cores rising to >1.0 in lobes for FR I sources and 0.5-0.9 in FR II hotspots.
An obscured tidal disruption event in SDSS J010320.39+140152.5 was identified through its mid- and near-infrared dust echo peaking at 5.4e43 Lsun.
New ASKAP continuum imaging classifies jet morphologies in 173 G4Jy-3CRE sources (66% of sample) including 37 newly detected jets and identifies six new optical counterparts.
EP J174942.2-384834 is classified as a very faint X-ray transient black hole candidate based on its hard X-ray spectra, optical/UV brightening correlated with X-rays, and lack of radio emission.
Five new HI 21-cm absorption detections in LERGs and HERGs at z<0.5 reveal disturbed gas kinematics with velocity offsets over 350 km/s and a 3% detection rate consistent with lower-redshift samples.
The Argus Array and DSA are projected to detect 47 and 82 long GRB afterglows per year respectively from Fermi triggers, along with over 100 independent detections annually and some short GRB counterparts.
Bayesian tension analysis shows Planck CMB dipole in >5σ disagreement with CatWISE infrared sources and moderate-to-strong disagreement with radio surveys NVSS and RACS, with evidence for shared astrophysical signals in some catalogs.
A census of ~3600 variable compact radio sources at 3 GHz from VLASS epochs 1 and 2, with 5-9% showing >30% flux changes above 20-300 mJy and most consistent with blazars or quasars.
A CPRT formalism is presented as a common platform to link cosmological MHD simulations, theory, and SKA polarized sky data for interpreting magnetic fields across cosmic time.
First measurement of angular clustering w(theta) for radio sources at 816 MHz over 800 deg2 yields positive signal and effective bias 1.53-2.0 depending on N(z) prior.
A multi-wavelength census of eRASS1 counterparts using ZTF photometry yields 43 refined COB candidates and 4 promising XRBs from radio cross-matches.
In X-ray selected AGN, those hosting ultra-fast outflows exhibit larger radio extensions and steep spectra matching wind-driven shock models.
Synthesizes simulation predictions and pathfinder data to outline a broadband radio SED and spectral curvature strategy for identifying the earliest radio AGN with the SKA.
Gamma-ray detections from misaligned radio galaxies support a unifying leptonic (and possibly hadronic) emission framework across AGN scales, with SKA enabling resolved studies of particle acceleration sites.
Forecasts angular clustering for a 20,000 sq deg SKAO radio continuum survey reaching O(300-400 million) sources and discusses needed corrections for telescope systematics and population modeling.
Simulated SKA-Mid surveys reach radio-AGN completeness at L_1.4GHz ~ 10^23 W Hz^-1 up to z~6.
Bayesian model selection on SPICE-RACS DR2 data for source RACS_0900-28_7036 favors one Burn-slab plus two external Faraday dispersion components, with dominant RM of 345.5 rad m^{-2}.
The PINK updates enhance the CELEBI FRB pipeline with better astrometry, time-frequency gating, polarization calibration, DM optimization tools, and a software container for improved efficiency and localization of events like FRB 20251019A.
This paper discusses observational, calibration, and imaging requirements for solar and heliospheric science with the SKA radio telescope.
citing papers explorer
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Detection of a parsec-scale, compact, and fading ejecta from an accreting massive black hole
VLBI at 4.9 GHz plus multi-epoch survey data reveal a fading parsec-scale radio component near the optical center of a dwarf galaxy, interpreted as transient ejecta from IMBH accretion.
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Multi-wavelength outburst activity from EP J174942.2-384834: a very faint X-ray transient discovered by Einstein Probe
EP J174942.2-384834 is classified as a very faint X-ray transient black hole candidate based on its hard X-ray spectra, optical/UV brightening correlated with X-rays, and lack of radio emission.
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Prospects for GRB Afterglow Discovery with the Eric and Wendy Schmidt Observatory System
The Argus Array and DSA are projected to detect 47 and 82 long GRB afterglows per year respectively from Fermi triggers, along with over 100 independent detections annually and some short GRB counterparts.
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Hunting for Compact Object Binaries from eRASS1 Optical Counterparts through ZTF Time-domain Photometry and Multi-wavelength Census
A multi-wavelength census of eRASS1 counterparts using ZTF photometry yields 43 refined COB candidates and 4 promising XRBs from radio cross-matches.
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The Emerging Population of High-energy Emitting Radio Galaxies
Gamma-ray detections from misaligned radio galaxies support a unifying leptonic (and possibly hadronic) emission framework across AGN scales, with SKA enabling resolved studies of particle acceleration sites.