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18 papers · 2 filters
Delving into the depths of NGC 3783 with XRISM IV. Mapping of the accretion flow with Fe K emission lines
Chen Li, Jelle S. Kaastra, Liyi Gu +18
Using XRISM/Resolve time-averaged spectra of the well-known Seyfert-1.5 active galactic nucleus (AGN) in NGC 3783, we investigate the nature of the Fe K emission…
Delving into the depths of NGC 3783 with XRISM III. Birth of an ultrafast outflow during a soft flare
Liyi Gu, Keigo Fukumura, Jelle Kaastra +18
The 2024 X-ray/UV observation campaign of NGC 3783, led by XRISM, revealed the launch of an ultrafast outflow (UFO) with a radial velocity of 0.19c (57000 km/s). This event is sync…
Excitation of molecular hydrogen by cosmic-ray protons
Marco Padovani, Daniele Galli, Corey T. Plowman +4
Low-energy cosmic rays ( GeV) are responsible for the ionisation and heating of molecular clouds. While the role of supra-thermal electrons produced in the ionisation…
Counterpart identification and classification for eRASS1 and characterisation of the AGN content
M. Salvato, J. Wolf, T. Dwelly +44
[abridged] Accurately accounting for the AGN phase in galaxy evolution requires a large, clean AGN sample. This is now possible with SRG/eROSITA. The public Data Release 1 (DR1, Ja…
On the acceleration of cosmic rays at the post-adiabatic shocks of supernova remnants
O. Petruk, R. Bandiera, T. Kuzyo +2
When a supernova remnant (SNR) interacts with the dense material of an interstellar cloud, its shock wave decelerates rapidly, and the post-shock temperature drops to levels that p…
High-resolution Radio Study of Pulsar Wind Nebula MSH 15-52 and Supernova Remnant RCW 89
S. Zhang, C. -Y. Ng, N. Bucciantini
We present high-resolution radio observations of the pulsar wind nebula (PWN) MSH15-52, which is renowned for its distinctive hand-like shape, and its associated supernova remnant…