A black hole can launch a powerful relativistic jet after it tidally disrupts a star. If this jet
fortuitously aligns with our line of sight, the overall brightness is Doppler boosted by several …

AT2022cmc was recently reported as the first on-axis jetted tidal disruption event (TDE)
discovered in the last decade, and the fourth on-axis jetted TDE candidate known so far. In …

The next generation Event Horizon Telescope (ngEHT) will observe multiple supermassive
black hole (SMBH) candidates down to a few tens of mJy, and profoundly transform our …

For over a century, the identification of high-energy cosmic ray (CR) sources remains an
open question. For Galactic CRs with energy up to 1015 eV, supernova remnants (SNRs) …

We report the discovery of the 'mm fundamental plane of black hole accretion', which is a
tight correlation between the nuclear 1 mm luminosity (L ν, mm), the intrinsic 2–10 keV X-ray …

Astrophysical jets are relativistic outflows that remain collimated for remarkably many orders
of magnitude. Despite decades of research, the origin of cosmic rays (CRs) remains unclear …

Most active galactic nuclei at the center of the nearby galaxies have supermassive black
holes accreting at sub-Eddington rates through hot accretion flows or radiatively inefficient …

Using two-dimensional general relativistic resistive magnetohydrodynamic simulations, we
investigate the properties of the sheath separating the black hole jet from the surrounding …

Repeating X-ray bursts from the Galactic magnetar SGR 1806-20 have been observed with
a period of 398 days. Similarly, periodic X-ray bursts from SGR 1935+ 2154 with a period of …

We present a comprehensive study based on multiwavelength observations from the
NuSTAR, NICER, Swift, Fermi, NEOWISE, and ATCA telescopes during the 2022 outburst of …