74 citations · 140 across the 5 of their papers we have counts for
5 papers
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…
Follow-up survey for the binary black hole merger GW200224_222234 using Subaru/HSC and GTC/OSIRIS
Takayuki Ohgami, Josefa Becerra Gonzalez, Nozomu Tominaga +19
The LIGO/Virgo detected a gravitational wave (GW) event, named GW200224_222234 (a.k.a. S200224ca) and classified as a binary-black-hole coalescence, on February 24, 2020. Given its…
Opacity of the highly ionized lanthanides and the effect on the early kilonova
Smaranika Banerjee, Masaomi Tanaka, Daiji Kato +3
We investigate the effect of the presence of lanthanides (Z = 57- 71) on the kilonova at t~hours after the neutron star merger for the first time. For this purpose, we calculate th…
Optical follow-up observation for GW event S190510g using Subaru/Hyper Suprime-Cam
Takayuki Ohgami, Nozomu Tominaga, Yousuke Utsumi +13
A gravitational wave event, S190510g, which was classified as a binary-neutron-star coalescence at the time of preliminary alert, was detected by LIGO/Virgo collaboration on May 10…
Simulations of early kilonova emission from neutron star mergers
Smaranika Banerjee, Masaomi Tanaka, Kyohei Kawaguchi +2
We present radiative transfer simulations for blue kilonovae hours after neutron star (NS) mergers by performing detailed opacity calculations for the first time. We calculate atom…