Vacuum birefringence and the polarized X-ray emission from a radio magnetar
Kouveliotou, C. et al. An X-ray pulsar with a superstrong magnetic field in the soft γ-ray repeater SGR1806…
GW250114 reveals signatures of post-merger black-hole horizon
Oshita, N., Ma, S., Chen, Y. & Yang, H. Probing direct waves in black hole ringdowns. Preprint at…
Gravitational waves confirm predicted black-hole mass gap and probe stellar nuclear physics
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This…
Little red dots as young supermassive black holes in dense ionized cocoons
Greene, J. E. et al. UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources…
Quasi-periodic oscillations of GHz-band polarization in a black hole
Observations and data reduction Our astronomical monitoring targeting the microquasar GRS 1915 + 105 was conducted using the FAST. The…
Detection of X-ray emission from a bright long-period radio transient
Hurley-Walker, N. et al. A radio transient with unusually slow periodic emission. Nature 601, 526–530 (2022). Article ADS …