5 papers
Beyond orientation: Evidence for distinct physical regimes among Little Red Dots and Little Blue Dots
L. Barrufet, J. S. Dunlop, M. L. Hamadouche +6
Little Red Dots (LRDs) and Little Blue Dots (LBDs) may represent the same population of compact active galactic nuclei (AGN) observed along different lines of sight. We test this s…
Unveiling the Cosmos: XMM-Newton's Scientific Strategy
Norbert Schartel, Maria Santos-Lleo
In December 2024, the European Space Agency's (ESA) XMM-Newton X-ray Observatory celebrated the 25th anniversary of its launch. The annual number of peer-reviewed articles utilisin…
Multiwavelength continuum, emission line and BAL variability with prominent PV absorption in the X-ray-weakest quasar PG0043+039
Wolfram Kollatschny, Norbert Schartel, Malte A. Probst +3
PG0043+039 has been identified as an extremely X-ray-weak quasar and as a peculiar broad-absorption-line quasar based on UV HST spectra. We took simultaneous deep X-ray observation…
XMM-Newton Publications from 2000-2024
J. U. Ness, N. Schartel, M. Santos-Lleo
Novel studies are presented demonstrating that the data of ESA's XMM-Newton mission are efficiently used by an engaged and productive community. 87% of the available time budget du…
The transient event in NGC 1566 from 2017 to 2019 -- I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
M. W. Ochmann, W. Kollatschny, M. A. Probst +12
NGC 1566 is known for exhibiting recurrent outbursts, which are accompanied by changes in spectral type. The most recent transient event occurred from 2017 to 2019 and was reported…