Testing Cosmology with the Dark Energy Survey Five-Year Supernova Dataset
Astrobites reports on tests of cosmological models using measurements of nearly 2,000 supernovae from the Dark Energy Survey and other sources.
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Monster Shocks from Collapsing Magnetars
The collapse of a magnetar into a black hole may power the strongest shocks in the universe and produce brief, bright flashes of gamma rays.
Tracing Huge, Distant Structures in the Universe
Space is filled with structures that we can’t see directly. How do astronomers trace the underlying dark-matter distribution of the universe?
Searching Five Million Stars for Disks, Debris, and Dyson Spheres
A data-driven approach identifies stars with interesting infrared emission without relying on computationally expensive modeling.
Star Alignment and a Planet’s Origin: The Case of HIP 65426
Astrobites reports on an analysis of the orbital architecture of JWST’s first directly imaged exoplanet using time-series photometry data from the Transiting Exoplanet Survey Satellite.
Featured Image: Bringing PHANGS Data to Life
Nineteen nearby spiral galaxies surveyed by JWST are presented in one grand ensemble along with a customized image-processing pipeline.
On the Run: Hypervelocity Stars and Their Links to Type Ia Supernovae
While Type Ia supernovae have been used to determine cosmological distances and study the expansion of the universe, their origins are still under investigation. Recent simulations point to a double-detonation scenario being the catalyst for some of these extremely energetic events.
Gliese 229 B’s Newfound Companion Solves Brown Dwarf Mystery
New observations show that Gliese 229 B is two brown dwarfs rather than one, resolving the mismatch between its measured mass and predictions of evolutionary models.
Blowing Away Star Formation with Warm Molecular Gas
Astrobites reports on a study that uses JWST to investigate how warm, star-forming molecular gas is blown away by active galactic nuclei.
Close Encounters of Distant Stellar Partners
Widely spaced binary stars may get voted “Least Likely to Interact,” but they might surprise you: new research shows that under the right conditions, these distant stellar companions can get catastrophically close.
DPS 56: Day 4
JWST observations of giant exoplanet atmospheres, investigations of heating on Io and in asteroids, and a primer on open science brought the final day of DPS 56 to a close.
DPS 56: Day 3
Day 3 of DPS 56 brought a discussion of mental health in the planetary science community and new results regarding Jupiter’s Great Red Spot, Uranian moons, and co-orbiting bodies.