The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Ever deeper and wider look-back surveys have led to a fairly robust outline of the cosmic
star-formation history, which culminated around; this period is often nicknamed “cosmic …

A supermassive black hole, obscured by cosmic dust, powers the nearby active galaxy NGC
1068. Neutrinos, which rarely interact with matter, could provide information on the galaxy's …

Modern and future surveys effectively provide a panchromatic view for large numbers of
extragalactic objects. Consistently modeling these multiwavelength survey data is a critical …

Compact steep-spectrum (CSS) and peaked-spectrum (PS) radio sources are compact,
powerful radio sources. The multi-frequency observational properties and current theories …

Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive
black hole (SMBH) and are among the most luminous objects in the Universe. However, the …

The Pacific Ocean Neutrino Experiment is a new initiative towards constructing a multi-cubic-
kilometre neutrino telescope to expand our observable window of the Universe to the …

Accretion disks around supermassive black holes in active galactic nuclei produce
continuum radiation at ultraviolet and optical wavelengths. Physical processes in the …

The central nuclei of galaxies, where supermassive black holes (SMBHs) are thought to
reside, can experience phases of activity when they become active galactic nuclei (AGNs) …

Abstract Mid-infrared (mid-IR) observations are powerful in identifying heavily obscured
active galactic nuclei (AGN) that have weak emission in other wavelengths. Data from the …