11 papers
Searching for heavy charged relics in the Earth
Reza Ebadi, Peter W. Graham, Surjeet Rajendran +2
We propose a method for detecting an ambient density of heavy, electrically-charged particles. Such particles would impact the Earth, lose energy in terrestrial matter, and become…
Gradient-Produced Neutrinos
Erwin H. Tanin, Yikun Wang
Sufficiently strong electric fields can produce charged-particle pairs via the Schwinger effect. We argue that steep matter-density gradients, as can arise in neutron star interior…
Gravothermal Pile-Up of Collisional Dark Matter Around Compact Objects
Reza Ebadi, Erwin H. Tanin
The dark matter may consist of multiple species that interact differently. We show that a species that is cosmologically subdominant but highly collisional can pile up and become d…
LISA double white dwarf binaries as Galactic accelerometers
Reza Ebadi, Vladimir Strokov, Erwin H. Tanin +2
Galactic double white dwarf (DWD) binaries are among the guaranteed sources for the Laser Interferometer Space Antenna (LISA), an upcoming space-based gravitational wave (GW) detec…
Narrowing Down Sources of High-Frequency Gravitational Waves
Asher Berlin, Dawid Brzeminski, Erwin H. Tanin
Detecting gravitational waves above 100 kHz would constitute a major discovery, as any observable signal would have to arise from new physics within the late universe. Although man…
Thermal Damping of Mass-Modulating Scalars
Abhishek Banerjee, Ngan H. Nguyen, Erwin H. Tanin
The cosmological evolution of a scalar field is shaped by Hubble damping. Any non-gravitational couplings of the scalar with the primordial thermal bath generically contribute addi…