Axion dark matter: What is it and why now?

F Chadha-Day, J Ellis, DJE Marsh - Science advances, 2022 - science.org
The axion has emerged in recent years as a leading particle candidate to provide the
mysterious dark matter in the cosmos, as we review here for a general scientific audience …

The remnant of supernova 1987A

R McCray, C Fransson - Annual Review of Astronomy and …, 2016 - annualreviews.org
Although it has faded by a factor of∼ 107, SN 1987A is still bright enough to be observed in
almost every band of the electromagnetic spectrum. Today, the bolometric luminosity of the …

The fully developed remnant of a neutrino-driven supernova-Evolution of ejecta structure and asymmetries in SNR Cassiopeia A

S Orlando, A Wongwathanarat, HT Janka… - Astronomy & …, 2021 - aanda.org
Context. The remnants of core-collapse supernovae (SNe) are probes of the physical
processes associated with their parent SNe. Aims. Here we aim to explore to which extent …

Indication of a Pulsar Wind Nebula in the hard X-ray emission from SN 1987A

E Greco, M Miceli, S Orlando, B Olmi… - The Astrophysical …, 2021 - iopscience.iop.org
Since the day of its explosion, SN 1987A (SN87A) was closely monitored with the aim to
study its evolution and to detect its central compact relic. The detection of neutrinos from the …

Hydrodynamic simulations unravel the progenitor-supernova-remnant connection in SN 1987A

S Orlando, M Ono, S Nagataki, M Miceli… - Astronomy & …, 2020 - aanda.org
Context. Massive stars end their lives in catastrophic supernova (SN) explosions. Key
information on the explosion processes and on the progenitor stars can be extracted from …

Modeling SNR cassiopeia a from the supernova explosion to its current age: the role of post-explosion anisotropies of Ejecta

S Orlando, M Miceli, ML Pumo… - The Astrophysical …, 2016 - iopscience.iop.org
The remnants of core-collapse supernovae (SNe) have complex morphologies that may
reflect asymmetries and structures developed during the progenitor SN explosion. Here we …

Matter Mixing in Aspherical Core-collapse Supernovae: Three-dimensional Simulations with Single-star and Binary Merger Progenitor Models for SN 1987A

M Ono, S Nagataki, G Ferrand… - The Astrophysical …, 2020 - iopscience.iop.org
We perform three-dimensional hydrodynamic simulations of aspherical core-collapse
supernovae, focusing on the matter mixing in SN 1987A. The impacts of four progenitor (pre …

Evidence for past interaction with an asymmetric circumstellar shell in the young SNR Cassiopeia A

S Orlando, A Wongwathanarat, HT Janka… - Astronomy & …, 2022 - aanda.org
Context. Observations of the supernova remnant (SNR) Cassiopeia A (Cas A) show
significant asymmetries in the reverse shock that cannot be explained by models describing …

Additional evidence for a pulsar wind nebula in the heart of SN 1987A from Multiepoch X-ray data and MHD modeling

E Greco, M Miceli, S Orlando, B Olmi… - The Astrophysical …, 2022 - iopscience.iop.org
Since the day of its explosion, supernova (SN) 1987A has been closely monitored to study
its evolution and to detect its central compact relic. In fact, the formation of a neutron star is …

Chandra Observes the End of an Era in SN 1987A

KA Frank, SA Zhekov, S Park, R McCray… - The Astrophysical …, 2016 - iopscience.iop.org
Updated imaging and photometric results from Chandra observations of SN 1987A, covering
the last 16 years, are presented. We find that the 0.5–2 keV light curve has remained …