activity
20042026
most citedSystematic Opacity Calculations for Kilonovae

252 citations · 1.7k across the 55 of their papers we have counts for

collaborators

56 papers

physics.atom-ph2026

A CSFG-based neural network basis-selection method for large-scale RCI calculations within GRASPG

Chaofan Shi, Shaowei Tian, Ran Si +3

We present a neural network (NN) basis-selection method for large-scale relativistic configuration interaction (RCI) calculations in GRASPG. The method employs configuration state…

physics.atom-ph2026

Non-orthogonal extension of Graspg - dynamic electron correlation for large and compact active spaces

Sijie Wu, Ran Si, Chongyang Chen +3

Accurate relativistic multiconfiguration calculations of correlation-sensitive atomic properties are often limited by the rapid growth of configuration state function expansions wh…

physics.atom-ph2025

Comparative Analysis of Mg Properties using Multiconfiguration Dirac-Hartree-Fock and Relativistic Coupled-cluster Methods

B. K. Sahoo, Per Jönsson, Gediminas Gaigalas

We demonstrate behaviors of correlation effects in the calculations of atomic properties through two commonly employed many-body methods; namely multiconfiguration Dirac-Hartree-Fo…

physics.atom-ph2024★ 9 cited

Graspg -- An extension to Grasp2018 based on Configuration State Function Generators

Ran Si, Yanting Li, Kai Wang +4

The Graspg program package is an extension of Grasp2018 [Comput. Phys. Commun. 237 (2019) 184-187] based on configuration state function generators (CSFGs). The generators keep spi…

astro-ph.HE2023★ 1 cited

Tellurium emission line in kilonova AT 2017gfo

Kenta Hotokezaka, Masaomi Tanaka, Daiji Kato +1

The late-time spectra of the kilonova AT 2017gfo associated with GW170817 exhibit a strong emission line feature at . The line structure develops with time and there…

astro-ph.HE2023★ 1 cited

Diversity of early kilonova with the realistic opacities of highly ionized heavy elements

Smaranika Banerjee, Masaomi Tanaka, Daiji Kato +1

We investigate the early (t < 1 day) kilonova from the neutron star merger by deriving atomic opacities for all the elements from La to Ra (Z = 57 - 88) ionized to the states V - X…