Stefan J. Hofmeister et al 2026 ApJS 286 3
Researchers have assessed the diffusion and scattering within an ultraviolet instrument on board Solar Orbiter, which takes detailed observations of our home star from as close as about 60 au.
Claire S. Ye and Raymond G. Carlberg 2026 ApJL 1007 L25
Pairing cold dark matter simulations with observations of stellar streams and globular clusters, researchers have extracted a declining power-law-like globular cluster initial mass function.
Hiromichi Tagawa et al 2026 ApJ 1006 121
Emission arising from the merger of stellar-mass black holes in an active galactic nucleus disk should be identifiable through monitoring of order 1,000 active galactic nuclei of sufficient luminosity for a year.
P. Wang et al 2026 AJ 172 102
After identifying a new globular cluster, HSC 61, belonging to the Sagittarius dwarf galaxy, researchers have mapped the stellar stream, determined its metallicity, and analyzed the Sagittarius merger event.
Mallory J. Kinczyk et al 2026 Planet. Sci. J. 7 182
The Gelato mission would collect a sample from the surface of the comet 67P/Churyumov–Gerasimenko, gathering material that, unlike coma materials collected in previous missions, is relatively unprocessed.
M. Sten Delos et al 2026 ApJ 1006 125
The kinematics of small Milky Way satellites should differ depending on whether dark matter is warm or cold; current data constrain the mass of warm dark matter particles to >5.8 keV at 95% confidence.