Spectroscopic measurements confirm a tight 6D phase-space clump of four RGB stars as part of the distant southern spur of the Sagittarius stream, likely stripped from Sagittarius's halo in the earliest interaction phases.
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9 Pith papers cite this work. Polarity classification is still indexing.
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Joint lensing-kinematics analysis of nine CLASH clusters constrains chameleon gravity, yielding GR-consistent bounds for NFW and Hernquist profiles and |f_R| ≲ 2-5×10^{-5} for f(R) models.
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.
A coordinated Rubin-DESI supernova survey could distinguish dynamical dark energy from Lambda CDM at over 5 sigma in one year using 2300 spectroscopically confirmed SNe Ia at low redshift.
Galaxy properties in IllustrisTNG form a continuum across the multiscale caustic skeleton, with formation time of web components influencing colors and star formation activity.
Simulations of an SKA-Mid survey predict detection of 1.5e4 star-forming galaxies to z~7 with thermal SFR uncertainties of 0.1 dex, enabling constraints on cosmic star formation rate density.
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.
MeerKLASS reports successful single-dish HI intensity mapping detections that validate the technique for SKAO cosmology surveys.
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Tracing the very early disruption of the Sagittarius dwarf galaxy in the distant Milky Way halo
Spectroscopic measurements confirm a tight 6D phase-space clump of four RGB stars as part of the distant southern spur of the Sagittarius stream, likely stripped from Sagittarius's halo in the earliest interaction phases.
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HI 21-cm absorption in low- and high-excitation radio-loud AGNs at $z<0.5$ from MALS
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.
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Tracing the Star Formation History of the Universe through Thermal Free-Free Emission with the SKA
Simulations of an SKA-Mid survey predict detection of 1.5e4 star-forming galaxies to z~7 with thermal SFR uncertainties of 0.1 dex, enabling constraints on cosmic star formation rate density.
- A new Gaia census of OB associations within 1 kpc