41 citations · 123 across the 9 of their papers we have counts for
9 papers
Signatures of Dark Matter halos in LISA via Stochastic Diffraction
Han Gil Choi, Juan Urrutia, Miguel Zumalacárregui
Cold Dark Matter predicts a population of low-mass halos which are sensitive to its fundamental nature and the primordial power spectrum, yet remain undetected. Although elusive, t…
Can Horndeski Genesis be Nonpathological?
Han Gil Choi, Pavel Petrov, Masahide Yamaguchi
We present a minimal setup within the framework of Horndeski gravity that can describe a nonpathological Genesis scenario. Our setup allows for a fully stable transition to the kin…
Probing small-scale power spectrum with gravitational-wave diffractive lensing
Sungjung Kim, Han Gil Choi, Sunghoon Jung
We develop a novel way to probe subgalactic-scale matter distribution with diffractive lensing on gravitational waves. Five-year observations from Einstein Telescope and DECIGO are…
Coexistence Test of Primordial Black Holes and Particle Dark Matter from Diffractive Lensing
Han Gil Choi, Sunghoon Jung, Philip Lu +1
If dark matter (DM) consists of primordial black holes (PBHs) and particles simultaneously, PBHs are generically embedded within particle DM halos. Such ``dressed PBHs'' (dPBHs) ar…
Importance of eccentricities in parameter estimation of compact binary inspirals with decihertz gravitational-wave detectors
Han Gil Choi, Tao Yang, Hyung Mok Lee
During its inspiral stage, a binary black hole (BBH) produces characteristic gravitational wave (GW) signals. The waveform of the GW signals can be described by the physical parame…
Space-borne atom interferometric gravitational wave detections. Part II. Dark sirens and finding the one
Tao Yang, Hyung Mok Lee, Rong-Gen Cai +2
In this paper, we investigate the potential of dark sirens by the space-borne atom interferometric gravitational-wave detectors to probe the Hubble constant. In the mid-frequency b…
Small-scale shear: Peeling off diffuse subhalos with gravitational waves
Han Gil Choi, Chanung Park, Sunghoon Jung
Subhalos at subgalactic scales ( or ) are pristine test beds of dark matter (DM). However, they are too small, diffuse and d…
A New Probe of Dark Matter-Induced Fifth Force with Neutron Star Inspirals
Han Gil Choi, Sunghoon Jung
A light scalar dark matter (DM) is allowed in a wide range of the mass and interaction types. We show that the light scalar DM may be probed in a new way from final years of neutro…
Detection and characterization of spin-orbit resonances in the advanced gravitational wave detectors era
Chaitanya Afle, Anuradha Gupta, Bhooshan Gadre +12
In this paper, we test the performance of templates in detection and characterization of Spin-orbit resonant (SOR) binaries. We use precessing SEOBNRv3 waveforms as well as {\it fo…