Magnetorotational supernovae: a nucleosynthetic analysis of sophisticated 3D models
Magnetorotational supernovae are a rare type of core-collapse supernovae where the
magnetic field and rotation play a central role in the dynamics of the explosion. We present …
magnetic field and rotation play a central role in the dynamics of the explosion. We present …
Element abundance patterns in stars indicate fission of nuclei heavier than uranium
The heaviest chemical elements are naturally produced by the rapid neutron-capture
process (r-process) during neutron star mergers or supernovae. The r-process production of …
process (r-process) during neutron star mergers or supernovae. The r-process production of …
The R-process alliance: First release from the Northern search for r-process-enhanced metal-poor stars in the galactic halo
CM Sakari, VM Placco, EM Farrell… - The Astrophysical …, 2018 - iopscience.iop.org
This paper presents the detailed abundances and r-process classifications of 126 newly
identified metal-poor stars as part of an ongoing collaboration, the R-Process Alliance. The …
identified metal-poor stars as part of an ongoing collaboration, the R-Process Alliance. The …
The r-process alliance: first magellan/MIKE release from the southern search for r-process-enhanced stars
Extensive progress has recently been made in our understanding of heavy-element
production via the r-process in the universe, specifically with the first observed neutron star …
production via the r-process in the universe, specifically with the first observed neutron star …
The r-process alliance: chemodynamically tagged groups of halo r-process-enhanced stars reveal a shared chemical-evolution history
We derive dynamical parameters for a large sample of 446 r-process-enhanced (RPE) metal-
poor stars in the halo and disk systems of the Milky Way, based on data releases from the R …
poor stars in the halo and disk systems of the Milky Way, based on data releases from the R …
Nucleosynthesis in outflows of compact objects and detection prospects of associated kilonovae
N Ekanger, M Bhattacharya… - Monthly Notices of the …, 2023 - academic.oup.com
We perform a comparative analysis of nucleosynthesis yields from binary neutron star (BNS)
mergers, black hole-neutron star (BHNS) mergers, and core-collapse supernovae (CCSNe) …
mergers, black hole-neutron star (BHNS) mergers, and core-collapse supernovae (CCSNe) …
SPLUS J142445. 34–254247.1: An r-process–enhanced, Actinide-boost, Extremely Metal-poor Star Observed with GHOST
We report on a chemo-dynamical analysis of SPLUS J142445. 34− 254247.1 (SPLUS
J1424− 2542), an extremely metal-poor halo star enhanced in elements formed by the rapid …
J1424− 2542), an extremely metal-poor halo star enhanced in elements formed by the rapid …
Decoding the compositions of four bright r-process-enhanced stars
There has been a concerted effort in recent years to identify the astrophysical sites of the r-
process that can operate early in the galaxy. The discovery of many r-process-enhanced …
process that can operate early in the galaxy. The discovery of many r-process-enhanced …
The R-Process Alliance: Abundance universality among some elements at and between the first and second r-process peaks
We present new observational benchmarks of rapid neutron-capture process (r-process)
nucleosynthesis for elements at and between the first (A∼ 80) and second (A∼ 130) peaks …
nucleosynthesis for elements at and between the first (A∼ 80) and second (A∼ 130) peaks …
The R-process alliance: A comprehensive abundance analysis of HD 222925, a metal-poor star with an extreme R-process enhancement of [Eu/H]=− 0.14
We present a detailed abundance analysis of the bright (V= 9.02), metal-poor ([Fe/H]=−
1.47±0.08) field red horizontal-branch star HD 222925, which was observed as part of an …
1.47±0.08) field red horizontal-branch star HD 222925, which was observed as part of an …