activity
20202026
most citedNLTE Effects on Kilonova Expansion Opacities

57 citations · 205 across the 14 of their papers we have counts for

collaborators
Showing 2025Show all

5 papers · 1 filter

astro-ph.HE2025★ 4 cited

Spectral synthesis techniques for supernovae and kilonovae

Anders Jerkstrand

Supernovae (SNe) and kilonovae (KNe) are the most violent explosions in cosmos, signalling the destruction of a massive star (core-collapse SN), a white dwarf (thermonuclear SN) an…

astro-ph.HE2025★ 1 cited

ExTraSS: a Domain Decomposed 3D NLTE Radiative Transfer spectral synthesis code for nebular phase transients

Bart F. A. van Baal, Anders Jerkstrand

In the nebular phase, supernovae are powered by radioactive decay and continuously fade, while their densities have decreased enough such that the expanding nebula becomes (largely…

astro-ph.SR2025

Infrared spectral signatures of light r-process elements in kilonovae

Anders Jerkstrand, Quentin Pognan, Smaranika Banerjee +8

A central question regarding neutron star mergers is whether they are able to produce all the r-process elements, from first to third peak. The high abundances of first-peak elemen…

astro-ph.HE2025★ 1 cited

Lanthanide Impact on the Infra-Red Spectra of Nebular Phase Kilonovae

Quentin Pognan, Kyohei Kawaguchi, Shinya Wanajo +3

Nebular phase kilonovae (KNe) have significant infra-red (IR) emission thought to be mostly forbidden emission lines from rapid neutron capture (r-process) species in neutron star…

astro-ph.HE2025★ 2 cited

Nebular spectra of kilonovae with detailed recombination rates -- I. Light r-process composition

Smaranika Banerjee, Anders Jerkstrand, Nigel Badnell +3

To investigate spectra of kilonovae in the NLTE phase (t>= 1 week), we perform atomic calculations for dielectronic recombination (DR) rates for the light r-process elements Se (Z…