The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +2 more sources
Constraint on the ejecta mass for a black hole-neutron star merger event candidate S190814bv [PDF]
We derive the upper limit to the ejecta mass of S190814bv, a black hole-neutron star merger candidate, through the radiative transfer simulations for kilonovae with the realistic ejecta density profile as well as the detailed opacity and heating rate ...
Kawaguchi, Kyohei +2 more
core +2 more sources
The X-ray Iron Emission from Tycho's Supernova Remnant [PDF]
We present the results of broadband fits to the X-ray spectrum of Tycho's supernova remnant obtained by the Solid-State Imaging Spectrometers on the ASCA Observatory.
Albinson J. S. +8 more
core +2 more sources
XMM-Newton Large Program on SN1006 - II: Thermal Emission [PDF]
Based on the XMM-Newton large program on SN1006 and our newly developed spatially resolved spectroscopy tools (Paper~I), we study the thermal emission from ISM and ejecta of SN1006 by analyzing the spectra extracted from 583 tessellated regions dominated
Bocchino, Fabrizio +4 more
core +5 more sources
X-ray ejecta kinematics of the Galactic core-collapse supernova remnant G292.0+1.8 [PDF]
We report on the results from the analysis of our 114 ks Chandra HETGS observation of the Galactic core-collapse supernova remnant G292.0+1.8. To probe the 3D structure of the clumpy X-ray emitting ejecta material in this remnant, we measured Doppler ...
Bhalerao, Jayant +5 more
core +3 more sources
Gas Dynamics of the Nickel-56 Decay Heating in Pair-Instability Supernovae [PDF]
Very massive 140-260 Msun stars can die as highly-energetic pair-instability supernovae (PI SNe) with energies of up to 100 times those of core-collapse SNe that can completely destroy the star, leaving no compact remnant behind.
Chen, Ke-Jung +2 more
core +2 more sources
Initial 40Ar‐39Ar Ages of the Paleocene‐Eocene Boundary Impact Spherules
We report 40Ar‐39Ar step‐heating ages of Paleocene‐Eocene (P‐E) boundary impact spherules from Atlantic Margin coastal plain and open ocean sites. We test the hypothesis that the P‐E spherules are reworked from an earlier event (e.g., K‐Pg impact at ~66 ...
Morgan F. Schaller +4 more
doaj +1 more source
Craters at many volcanoes, including most maars, are formed by multiple subsurface explosions. Experiments compared the crater formed by a single large, buried explosion, with craters formed by multiple explosions with the same cumulative energy ...
Greg A. Valentine +6 more
doaj +1 more source
High-speed impact ejecta at velocities comparable to the impact velocity are expected to contribute to material transport between planetary bodies and deposition of ejecta far from the impact crater.
Genda, Hidenori +3 more
core +1 more source
Trans-Ejecta High-Energy Neutrino Emission from Binary Neutron Star Mergers [PDF]
The observations of a macronova/kilonova accompanied by gravitational waves from a binary neutron star merger (GW170817) confirmed that neutron star coalescences produce copious ejecta.
Bartos, Imre +5 more
core +2 more sources

