Mysterious odd radio circle near the large magellanic cloud–an intergalactic supernova remnant?

MD Filipović, JL Payne, RZE Alsaberi… - Monthly Notices of …, 2022 - academic.oup.com
We report the discovery of J0624–6948, a low-surface brightness radio ring, lying between
the Galactic Plane and the large magellanic cloud (LMC). It was first detected at 888 MHz …

The Double Detonation of a Double-degenerate System, from Type Ia Supernova Explosion to its Supernova Remnant

G Ferrand, A Tanikawa, DC Warren… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract Type Ia supernovae (SNe) are believed to be caused by the thermonuclear
explosion of a white dwarf (WD), but the nature of the progenitor system (s) is still unclear …

Accretion-modified stars in accretion disks of active galactic nuclei: Gravitational-wave bursts and electromagnetic counterparts from merging stellar black hole …

JM Wang, JR Liu, LC Ho, YR Li… - The Astrophysical Journal …, 2021 - iopscience.iop.org
The recent advanced LIGO/Virgo detections of gravitational waves (GWs) from stellar binary
black hole (BBH) mergers, in particular GW190521, which is potentially associated with a …

Evidence of Gradients of Density and Magnetic Field in the Remnant of Tycho's Supernova

O Petruk, T Kuzyo, M Patrii, L Chomiuk… - The Astrophysical …, 2024 - iopscience.iop.org
By using surface brightness maps of Tycho's supernova remnant (SNR) in radio and X-rays,
along with the properties of thermal and synchrotron emission, we have derived the …

Polarized radio emission unveils the structure of the pre-supernova circumstellar magnetic field and the radio emission in SN1987A

O Petruk, V Beshley, S Orlando… - Monthly Notices of …, 2023 - academic.oup.com
The detected polarized radio emission from the remnant of SN1987A opens the possibility to
unveil the structure of the pre-supernova (pre-SN) magnetic field (MF) in the circumstellar …

Long-term Evolution of Nonthermal Emission from Type Ia and Core-collapse Supernova Remnants in a Diversified Circumstellar Medium

R Kobashi, H Yasuda, SH Lee - The Astrophysical Journal, 2022 - iopscience.iop.org
The contribution of galactic supernova remnants (SNRs) to the origin of cosmic rays (CRs) is
an important open question in modern astrophysics. Broadband nonthermal emission is a …

The role of supernovae inside AGN jets in UHECR acceleration

V Bosch-Ramon - Astronomy & Astrophysics, 2023 - aanda.org
Context. Jets of active galactic nuclei are potential accelerators of ultra high-energy cosmic
rays. Supernovae can occur inside these jets and contribute to cosmic ray acceleration …

Core-collapse supernova inside the core of a young massive star cluster: 3D MHD simulations

DV Badmaev, AM Bykov… - Monthly Notices of the …, 2024 - academic.oup.com
Young massive stars in compact stellar clusters could end their evolution as core-collapse
supernovae a few million years after the cluster was built. The blast wave of a supernova …

Crystalline flat surface recovered by high-temperature annealing after laser ablation

D Smith, SH Ng, A Tang, T Katkus, D Moraru… - Photonics, 2023 - mdpi.com
Ultra-short laser pulses (1030 nm/230 fs) were used to laser ablate the surface of crystalline
sapphire (Al2O3) at high intensity per pulse 20–200 TW/cm 2/pulse. Laser-ablated patterns …

Study of the Influence of the Background Neutral Component on the Dynamics of the Envelope in Supernova Remnants

YS Sharova, SI Glazyrin, VA Gasilov - Astronomy Letters, 2021 - Springer
The influence of neutrals on the development of multidimensional dense-shell instabilities in
supernova remnants is investigated. We present a model in which the neutrals are …