activity
20182026
most citedIndication of a Pulsar Wind Nebula in the hard X-ray emission from SN 1987A

37 citations · 242 across the 24 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

astro-ph.HE2025

Extreme anisotropies in deep layers of an exploding star: overabundance of Cr in the northeastern jet of Cassiopeia A

Vincenzo Sapienza, Marco Miceli, Masaomi Ono +5

Core-collapse supernovae drive nucleosynthesis under extreme thermodynamic conditions, and complex mechanisms are at work prompting the transport of heavy elements from deep stella…

astro-ph.HE2025★ 2 cited

Multi-wavelength study of the high Galactic latitude supernova remnant candidate G118.4+37.0 associated with the Calvera pulsar

Emanuele Greco, Michela Rigoselli, Sandro Mereghetti +4

The candidate supernova remnant (SNR) G118.4+37.0 (Calvera's SNR), discovered as a faint radio ring at high Galactic latitude and coincident with extended Fermi/LAT gamma-ray emiss…

astro-ph.HE2025★ 1 cited

Measuring the initial mass of 44Ti in SN 1987A through the 44Sc emission line

Roberta Giuffrida, Marco Miceli, Emanuele Greco +7

Context. Deriving the mass and large-scale asymmetries of radioactive isotopes offers valuable insights into the complex phases of a supernova explosion. Important examples are $^{…

astro-ph.HE2025★ 8 cited

Tracing the ejecta structure of SN 1987A: Insights and diagnostics from 3D MHD simulations

S. Orlando, M. Miceli, M. Ono +14

Supernova (SN) 1987A provides a unique window into the aftermath of a massive stellar explosion, offering key insights into the ejecta's morphology, composition, explosion mechanis…

astro-ph.HE2025

Origin of holes and rings in the Green Monster of Cassiopeia A: Insights from 3D magnetohydrodynamic simulations

S. Orlando, H. -T. Janka, A. Wongwathanarat +10

[Abridged] Cassiopeia A (Cas A) provides a unique opportunity to study supernova (SN) dynamics and interactions with the circumstellar medium (CSM). Recent JWST observations reveal…

astro-ph.HE2025

Evolution of X-ray Gas in SN 1987A from 2007 to 2021: Ring Fading and Ejecta Brightening Unveiled through Differential Emission Measure Analysis

Lei Sun, Salvatore Orlando, Emanuele Greco +4

As the nearest supernova (SN) observed since Kepler's SN of 1604, SN 1987A provides an unprecedented opportunity to study in detail the early evolution of supernova remnants (SNRs)…

astro-ph.HE2025★ 2 cited

Unusual X-ray Oxygen Line Ratios of SN 1987A Arising From the Absorption of Galactic Hot Interstellar Medium

Lei Sun, Salvatore Orlando, Emanuele Greco +5

Recent high-resolution X-ray spectroscopic studies have revealed unusual oxygen line ratios, such as the high O VII forbidden-to-resonance ratio, in several supernova remnants. Whi…