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Astrophysics
Research into stars, galaxies, cosmology, planets, and the physics of the universe.
CHANNEL // 04 [180]
Astrophysics
Research into stars, galaxies, cosmology, planets, and the physics of the universe.
Stellar motions sharpen the estimate of M87’s black hole mass
Source published
- M87
- supermassive black holes
- JWST
Euclid forecast points to millions of galaxy spectra, with oxygen-line counts less certain
Source published
- Euclid
- emission-line galaxies
- spectroscopy
Which galaxies could Euclid’s surveys miss?
Source published
- Euclid
- galaxy evolution
- spectroscopy
How bright knots of gas complicate measurements of galaxy clusters
Source published
- galaxy clusters
- CHEX-MATE
- X-ray astronomy
How Decaying Dark Matter Could Puff Up a Galactic Halo
Source published
- dark matter
- decaying dark matter
- galactic halos
- NO VISUAL
Lead-Rich Stars Offer Clues to a Hidden Heavy-Element Factory
Source published
- i-process
- nucleosynthesis
- barium stars
How Red Giant Measurements Shift the Inferred Expansion Rate
Source published
- Hubble constant
- Hubble tension
- tip of the red giant branch
When Removing the Sky Also Removes a Cluster’s Glow
Source published
- intracluster light
- sky subtraction
- low surface brightness
Catching a Neutron Star Merger’s Light Before It Fades
Source published
- gravitational waves
- kilonovae
- neutron star mergers
A binary star in Sagittarius’s Teapot reveals its orbit—and a distance problem
Source published
- Nandou
- Phi Sagittarii
- binary stars
Cleaner galaxy images are not enough: denoising must preserve the light
Source published
- PAU Survey
- astronomical photometry
- self-supervised learning
Can geometry help astronomers find gravitational arcs?
Source published
- gravitational lensing
- gravitational arcs
- HLA-Net
Testing Tomorrow’s Lunar Asteroid Telescopes in Earth’s Harshest Places
Source published
- near-Earth asteroids
- planetary defence
- lunar observatories
Could the Moon Become a Giant Optical Observatory?
Source published
- lunar astronomy
- hypertelescopes
- optical interferometry
How a Black Hole’s Jets Could Disrupt Its Own Fuel Supply
Source published
- supermassive black holes
- active galactic nuclei
- radio galaxies